_ Git - dnssec-prover/blob - src/validation.rs

   1 //! Utilities to deserialize and validate RFC 9102 proofs
   2
   3 use alloc::borrow::ToOwned;
   4 use alloc::vec::Vec;
   5 use alloc::vec;
   6 use core::cmp::{self, Ordering};
   7
   8 use crate::base32;
   9 use crate::crypto;
  10 use crate::rr::*;
  11 use crate::ser::write_name;
  12
  13 /// Gets the trusted root anchors
  14 ///
  15 /// These are available at <https://data.iana.org/root-anchors/root-anchors.xml>
  16 pub fn root_hints() -> Vec<DS> {
  17         #[allow(unused_mut)]
  18         let mut res = vec![DS {
  19                 name: ".".try_into().unwrap(), key_tag: 19036, alg: 8, digest_type: 2,
  20                 digest: hex_lit::hex!("49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5").to_vec(),
  21         }, DS {
  22                 name: ".".try_into().unwrap(), key_tag: 20326, alg: 8, digest_type: 2,
  23                 digest: hex_lit::hex!("E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC683457104237C7F8EC8D").to_vec(),
  24         }];
  25         // In tests, add the trust anchor from RFC 9102
  26         #[cfg(test)]
  27         res.push(DS {
  28                 name: ".".try_into().unwrap(), key_tag: 47005, alg: 13, digest_type: 2,
  29                 digest: hex_lit::hex!("2eb6e9f2480126691594d649a5a613de3052e37861634641bb568746f2ffc4d4").to_vec(),
  30         });
  31         res
  32 }
  33
  34 #[derive(Debug, PartialEq)]
  35 /// An error when validating DNSSEC signatures or other data
  36 pub enum ValidationError {
  37         /// An algorithm used in signing was not supported.
  38         ///
  39         /// In general DNS usage the resulting data should be used anyway, as we were able to verify
  40         /// that a zone wished to use the unsupported algorithm.
  41         ///
  42         /// However, in cases where signing is mandatory, this can be treated as an error.
  43         UnsupportedAlgorithm,
  44         /// The provided data was invalid or signatures did not validate.
  45         Invalid,
  46 }
  47
  48 fn verify_rrsig<'a, RR: WriteableRecord, Keys>(sig: &RRSig, dnskeys: Keys, mut records: Vec<&RR>)
  49 -> Result<(), ValidationError>
  50 where Keys: IntoIterator<Item = &'a DnsKey> {
  51         for record in records.iter() {
  52                 if sig.ty != record.ty() { return Err(ValidationError::Invalid); }
  53         }
  54         for dnskey in dnskeys.into_iter() {
  55                 if dnskey.key_tag() == sig.key_tag {
  56                         // Protocol must be 3, otherwise its not DNSSEC
  57                         if dnskey.protocol != 3 { continue; }
  58                         // The ZONE flag must be set if we're going to validate RRs with this key.
  59                         if dnskey.flags & 0b1_0000_0000 == 0 { continue; }
  60                         if dnskey.alg != sig.alg { continue; }
  61
  62                         let mut hash_ctx = match sig.alg {
  63                                 8 => crypto::hash::Hasher::sha256(),
  64                                 10 => crypto::hash::Hasher::sha512(),
  65                                 13 => crypto::hash::Hasher::sha256(),
  66                                 14 => crypto::hash::Hasher::sha384(),
  67                                 15 => crypto::hash::Hasher::sha512(),
  68                                 _ => return Err(ValidationError::UnsupportedAlgorithm),
  69                         };
  70
  71                         hash_ctx.update(&sig.ty.to_be_bytes());
  72                         hash_ctx.update(&sig.alg.to_be_bytes());
  73                         hash_ctx.update(&sig.labels.to_be_bytes());
  74                         hash_ctx.update(&sig.orig_ttl.to_be_bytes());
  75                         hash_ctx.update(&sig.expiration.to_be_bytes());
  76                         hash_ctx.update(&sig.inception.to_be_bytes());
  77                         hash_ctx.update(&sig.key_tag.to_be_bytes());
  78                         write_name(&mut hash_ctx, &sig.key_name);
  79
  80                         records.sort_unstable();
  81
  82                         for record in records.iter() {
  83                                 let record_labels = record.name().labels() as usize;
  84                                 let labels = sig.labels.into();
  85                                 // For NSec types, the name should already match the wildcard, so we don't do any
  86                                 // filtering here. This is relied upon in `verify_rr_stream` to check whether an
  87                                 // NSec record is matching via wildcard (as otherwise we'd allow a resolver to
  88                                 // change the name out from under us and change the wildcard to something else).
  89                                 if record.ty() != NSec::TYPE && record_labels != labels {
  90                                         if record_labels < labels { return Err(ValidationError::Invalid); }
  91                                         let signed_name = record.name().trailing_n_labels(sig.labels);
  92                                         debug_assert!(signed_name.is_some());
  93                                         if let Some(name) = signed_name {
  94                                                 hash_ctx.update(b"\x01*");
  95                                                 write_name(&mut hash_ctx, name);
  96                                         } else { return Err(ValidationError::Invalid); }
  97                                 } else {
  98                                         write_name(&mut hash_ctx, record.name());
  99                                 }
 100                                 hash_ctx.update(&record.ty().to_be_bytes());
 101                                 hash_ctx.update(&1u16.to_be_bytes()); // The INternet class
 102                                 hash_ctx.update(&sig.orig_ttl.to_be_bytes());
 103                                 record.serialize_u16_len_prefixed(&mut hash_ctx);
 104                         }
 105
 106                         let hash = hash_ctx.finish();
 107                         let sig_validation = match sig.alg {
 108                                 8|10 => crypto::rsa::validate_rsa(&dnskey.pubkey, &sig.signature, hash.as_ref())
 109                                         .map_err(|_| ValidationError::Invalid),
 110                                 13 => crypto::secp256r1::validate_ecdsa(&dnskey.pubkey, &sig.signature, hash.as_ref())
 111                                         .map_err(|_| ValidationError::Invalid),
 112                                 14 => crypto::secp384r1::validate_ecdsa(&dnskey.pubkey, &sig.signature, hash.as_ref())
 113                                         .map_err(|_| ValidationError::Invalid),
 114                                 // TODO: 15 => ED25519
 115                                 _ => return Err(ValidationError::UnsupportedAlgorithm),
 116                         };
 117                         #[cfg(fuzzing)] {
 118                                 // When fuzzing, treat any signature starting with a 1 as valid, but only after
 119                                 // parsing and checking signatures to give that code a chance to panic.
 120                                 if sig.signature.get(0) == Some(&1) {
 121                                         return Ok(());
 122                                 }
 123                         }
 124
 125                         // Note that technically there could be a key tag collision here, causing spurious
 126                         // verification failure. In most zones, there's only 2-4 DNSKEY entries, meaning a
 127                         // spurious collision shouldn't be much more often than one every billion zones. Much
 128                         // more likely in such a case, someone is just trying to do a KeyTrap attack, so we
 129                         // simply hard-fail and return an error immediately.
 130                         sig_validation?;
 131
 132                         return Ok(());
 133                 }
 134         }
 135         Err(ValidationError::Invalid)
 136 }
 137
 138 /// Verify [`RRSig`]s over [`DnsKey`], returning a reference to the [`RRSig`] that matched, if any.
 139 fn verify_dnskeys<'r, 'd, RI, R, DI, D>(sigs: RI, dses: DI, records: Vec<&DnsKey>)
 140 -> Result<&'r RRSig, ValidationError>
 141 where RI: IntoIterator<IntoIter = R>, R: Iterator<Item = &'r RRSig>,
 142       DI: IntoIterator<IntoIter = D>, D: Iterator<Item = &'d DS> + Clone {
 143         let mut validated_dnskeys = Vec::with_capacity(records.len());
 144         let dses = dses.into_iter();
 145
 146         let mut had_known_digest_type = false;
 147         let mut had_ds = false;
 148         for ds in dses.clone() {
 149                 had_ds = true;
 150                 if ds.digest_type == 1 || ds.digest_type == 2 || ds.digest_type == 4 {
 151                         had_known_digest_type = true;
 152                         break;
 153                 }
 154         }
 155         if !had_ds { return Err(ValidationError::Invalid); }
 156         if !had_known_digest_type { return Err(ValidationError::UnsupportedAlgorithm); }
 157
 158         for dnskey in records.iter() {
 159                 // Only use SHA1 DS records if we don't have any SHA256/SHA384 DS RRs.
 160                 let trust_sha1 = dses.clone().all(|ds| ds.digest_type != 2 && ds.digest_type != 4);
 161                 for ds in dses.clone() {
 162                         if ds.alg != dnskey.alg { continue; }
 163                         if dnskey.key_tag() == ds.key_tag {
 164                                 let mut ctx = match ds.digest_type {
 165                                         1 if trust_sha1 => crypto::hash::Hasher::sha1(),
 166                                         2 => crypto::hash::Hasher::sha256(),
 167                                         4 => crypto::hash::Hasher::sha384(),
 168                                         _ => continue,
 169                                 };
 170                                 write_name(&mut ctx, &dnskey.name);
 171                                 ctx.update(&dnskey.flags.to_be_bytes());
 172                                 ctx.update(&dnskey.protocol.to_be_bytes());
 173                                 ctx.update(&dnskey.alg.to_be_bytes());
 174                                 ctx.update(&dnskey.pubkey);
 175                                 let hash = ctx.finish();
 176                                 if hash.as_ref() == &ds.digest {
 177                                         validated_dnskeys.push(*dnskey);
 178                                         break;
 179                                 }
 180                         }
 181                 }
 182         }
 183
 184         let mut found_unsupported_alg = false;
 185         for sig in sigs {
 186                 match verify_rrsig(sig, validated_dnskeys.iter().map(|k| *k), records.clone()) {
 187                         Ok(()) => return Ok(sig),
 188                         Err(ValidationError::UnsupportedAlgorithm) => {
 189                                 // There may be redundant signatures by different keys, where one we don't
 190                                 // supprt and another we do. Ignore ones we don't support, but if there are
 191                                 // no more, return UnsupportedAlgorithm
 192                                 found_unsupported_alg = true;
 193                         },
 194                         Err(ValidationError::Invalid) => {
 195                                 // If a signature is invalid, just immediately fail, avoiding KeyTrap issues.
 196                                 return Err(ValidationError::Invalid);
 197                         },
 198                 }
 199         }
 200
 201         if found_unsupported_alg {
 202                 Err(ValidationError::UnsupportedAlgorithm)
 203         } else {
 204                 Err(ValidationError::Invalid)
 205         }
 206 }
 207
 208 /// Given a set of [`RR`]s, [`verify_rr_stream`] checks what it can and returns the set of
 209 /// non-[`RRSig`]/[`DnsKey`]/[`DS`] records which it was able to verify using this struct.
 210 ///
 211 /// It also contains signing and expiry times, which must be validated before considering the
 212 /// contained records verified.
 213 #[derive(Debug, Clone)]
 214 pub struct VerifiedRRStream<'a> {
 215         /// The set of verified [`RR`]s, not including [`DnsKey`], [`RRSig`], [`NSec`], and [`NSec3`]
 216         /// records.
 217         ///
 218         /// These are not valid unless the current UNIX time is between [`Self::valid_from`] and
 219         /// [`Self::expires`].
 220         pub verified_rrs: Vec<&'a RR>,
 221         /// The latest [`RRSig::inception`] of all the [`RRSig`]s validated to verify
 222         /// [`Self::verified_rrs`].
 223         ///
 224         /// Any records in [`Self::verified_rrs`] should not be considered valid unless this is before
 225         /// the current UNIX time.
 226         ///
 227         /// While the field here is a u64, the algorithm used to identify rollovers will fail in 2133.
 228         pub valid_from: u64,
 229         /// The earliest [`RRSig::expiration`] of all the [`RRSig`]s validated to verify
 230         /// [`Self::verified_rrs`].
 231         ///
 232         /// Any records in [`Self::verified_rrs`] should not be considered valid unless this is after
 233         /// the current UNIX time.
 234         ///
 235         /// While the field here is a u64, the algorithm used to identify rollovers will fail in 2133.
 236         pub expires: u64,
 237         /// The minimum [`RRSig::orig_ttl`] of all the [`RRSig`]s validated to verify
 238         /// [`Self::verified_rrs`].
 239         ///
 240         /// Any caching of [`Self::verified_rrs`] must not last longer than this value, in seconds.
 241         pub max_cache_ttl: u32,
 242 }
 243
 244 fn resolve_time(time: u32) -> u64 {
 245         // RFC 2065 was published in January 1997, so we arbitrarily use that as a cutoff and assume
 246         // any timestamps before then are actually past 2106 instead.
 247         // We ignore leap years for simplicity.
 248         if time < 60*60*24*365*27 {
 249                 (time as u64) + (u32::MAX as u64)
 250         } else {
 251                 time.into()
 252         }
 253 }
 254
 255 fn nsec_ord(a: &str, b: &str) -> Ordering {
 256         let mut a_label_iter = a.rsplit(".");
 257         let mut b_label_iter = b.rsplit(".");
 258         loop {
 259                 match (a_label_iter.next(), b_label_iter.next()) {
 260                         (Some(_), None) => return Ordering::Greater,
 261                         (None, Some(_)) => return Ordering::Less,
 262                         (Some(a_label), Some(b_label)) => {
 263                                 let mut a_bytes = a_label.bytes();
 264                                 let mut b_bytes = b_label.bytes();
 265                                 loop {
 266                                         match (a_bytes.next(), b_bytes.next()) {
 267                                                 (Some(_), None) => return Ordering::Greater,
 268                                                 (None, Some(_)) => return Ordering::Less,
 269                                                 (Some(mut a), Some(mut b)) => {
 270                                                         if a >= 'A' as u8 && a <= 'Z' as u8 {
 271                                                                 a += 'a' as u8 - 'A' as u8;
 272                                                         }
 273                                                         if b >= 'A' as u8 && b <= 'Z' as u8 {
 274                                                                 b += 'a' as u8 - 'A' as u8;
 275                                                         }
 276                                                         if a != b { return a.cmp(&b); }
 277                                                 },
 278                                                 (None, None) => break,
 279                                         }
 280                                 }
 281                         },
 282                         (None, None) => return Ordering::Equal,
 283                 }
 284         }
 285 }
 286 fn nsec_ord_extra<T, U>(a: &(&str, T, U), b: &(&str, T, U)) -> Ordering {
 287         nsec_ord(a.0, b.0)
 288 }
 289
 290 #[cfg(test)]
 291 #[test]
 292 fn rfc4034_sort_test() {
 293         // Test nsec_ord based on RFC 4034 section 6.1's example
 294         // Note that we replace the \200 example  with \7f as I have no idea what \200 is
 295         let v = vec!["example.", "a.example.", "yljkjljk.a.example.", "Z.a.example.",
 296                 "zABC.a.EXAMPLE.", "z.example.", "\001.z.example.", "*.z.example.", "\x7f.z.example."];
 297         let mut sorted = v.clone();
 298         sorted.sort_unstable_by(|a, b| nsec_ord(*a, *b));
 299         assert_eq!(sorted, v);
 300 }
 301
 302 /// Verifies the given set of resource records.
 303 ///
 304 /// Given a set of arbitrary records, this attempts to validate DNSSEC data from the [`root_hints`]
 305 /// through to any supported non-DNSSEC record types.
 306 ///
 307 /// All records which could be validated are returned, though if an error is found validating any
 308 /// contained record, only `Err` will be returned.
 309 ///
 310 /// You MUST check that the current UNIX time is between [`VerifiedRRStream::valid_from`] and
 311 /// [`VerifiedRRStream::expires`].
 312 pub fn verify_rr_stream<'a>(inp: &'a [RR]) -> Result<VerifiedRRStream<'a>, ValidationError> {
 313         let mut zone = ".";
 314         let mut res = Vec::new();
 315         let mut rrs_needing_non_existence_proofs = Vec::new();
 316         let mut pending_ds_sets = Vec::with_capacity(1);
 317         let mut latest_inception = 0;
 318         let mut earliest_expiry = u64::MAX;
 319         let mut min_ttl = u32::MAX;
 320         'next_zone: while zone == "." || !pending_ds_sets.is_empty() {
 321                 let next_ds_set;
 322                 if let Some((next_zone, ds_set)) = pending_ds_sets.pop() {
 323                         next_ds_set = Some(ds_set);
 324                         zone = next_zone;
 325                 } else {
 326                         debug_assert_eq!(zone, ".");
 327                         next_ds_set = None;
 328                 }
 329
 330                 let dnskey_rrsigs = inp.iter()
 331                         .filter_map(|rr| if let RR::RRSig(sig) = rr { Some(sig) } else { None })
 332                         .filter(|rrsig| rrsig.name.as_str() == zone && rrsig.ty == DnsKey::TYPE);
 333                 let dnskeys = inp.iter()
 334                         .filter_map(|rr| if let RR::DnsKey(dnskey) = rr { Some(dnskey) } else { None })
 335                         .filter(move |dnskey| dnskey.name.as_str() == zone);
 336                 let root_hints = root_hints();
 337                 let verified_dnskey_rrsig = if zone == "." {
 338                         verify_dnskeys(dnskey_rrsigs, &root_hints, dnskeys.clone().collect())?
 339                 } else {
 340                         debug_assert!(next_ds_set.is_some());
 341                         if next_ds_set.is_none() { break 'next_zone; }
 342                         verify_dnskeys(dnskey_rrsigs, next_ds_set.clone().unwrap(), dnskeys.clone().collect())?
 343                 };
 344                 latest_inception = cmp::max(latest_inception, resolve_time(verified_dnskey_rrsig.inception));
 345                 earliest_expiry = cmp::min(earliest_expiry, resolve_time(verified_dnskey_rrsig.expiration));
 346                 min_ttl = cmp::min(min_ttl, verified_dnskey_rrsig.orig_ttl);
 347                 for rrsig in inp.iter()
 348                         .filter_map(|rr| if let RR::RRSig(sig) = rr { Some(sig) } else { None })
 349                         .filter(move |rrsig| rrsig.key_name.as_str() == zone && rrsig.ty != DnsKey::TYPE)
 350                 {
 351                         if !rrsig.name.ends_with(zone) { return Err(ValidationError::Invalid); }
 352                         let signed_records = inp.iter()
 353                                 .filter(|rr| rr.name() == &rrsig.name && rr.ty() == rrsig.ty);
 354                         match verify_rrsig(rrsig, dnskeys.clone(), signed_records.clone().collect()) {
 355                                 Ok(()) => {},
 356                                 Err(ValidationError::UnsupportedAlgorithm) => continue,
 357                                 Err(ValidationError::Invalid) => {
 358                                         // If a signature is invalid, just immediately fail, avoiding KeyTrap issues.
 359                                         return Err(ValidationError::Invalid);
 360                                 }
 361                         }
 362                         latest_inception = cmp::max(latest_inception, resolve_time(rrsig.inception));
 363                         earliest_expiry = cmp::min(earliest_expiry, resolve_time(rrsig.expiration));
 364                         min_ttl = cmp::min(min_ttl, rrsig.orig_ttl);
 365                         match rrsig.ty {
 366                                 // RRSigs shouldn't cover child `DnsKey`s or other `RRSig`s
 367                                 RRSig::TYPE|DnsKey::TYPE => return Err(ValidationError::Invalid),
 368                                 DS::TYPE => {
 369                                         if !pending_ds_sets.iter().any(|(pending_zone, _)| pending_zone == &rrsig.name.as_str()) {
 370                                                 pending_ds_sets.push((
 371                                                         &rrsig.name,
 372                                                         signed_records.filter_map(|rr|
 373                                                                 if let RR::DS(ds) = rr { Some(ds) }
 374                                                                 else { debug_assert!(false, "We already filtered by type"); None })
 375                                                 ));
 376                                         }
 377                                 },
 378                                 _ => {
 379                                         if rrsig.labels != rrsig.name.labels() && rrsig.ty != NSec::TYPE {
 380                                                 if rrsig.ty == NSec3::TYPE {
 381                                                         // NSEC3 records should never appear on wildcards, so treat the
 382                                                         // whole proof as invalid
 383                                                         return Err(ValidationError::Invalid);
 384                                                 }
 385                                                 // If the RR used a wildcard, we need an NSEC/NSEC3 proof, which we
 386                                                 // check for at the end. Note that the proof should be for the
 387                                                 // "next closest" name, i.e. if the name here is a.b.c and it was
 388                                                 // signed as *.c, we want a proof for nothing being in b.c.
 389                                                 // Alternatively, if it was signed as *.b.c, we'd want a proof for
 390                                                 // a.b.c.
 391                                                 let proof_name = rrsig.name.trailing_n_labels(rrsig.labels + 1)
 392                                                         .ok_or(ValidationError::Invalid)?;
 393                                                 rrs_needing_non_existence_proofs.push((proof_name, &rrsig.key_name, rrsig.ty));
 394                                         }
 395                                         for record in signed_records {
 396                                                 if !res.contains(&record) { res.push(record); }
 397                                         }
 398                                 },
 399                         }
 400                 }
 401                 continue 'next_zone;
 402         }
 403         if res.is_empty() { return Err(ValidationError::Invalid) }
 404         if latest_inception >= earliest_expiry { return Err(ValidationError::Invalid) }
 405
 406         // First sort the proofs we're looking for so that the retains below avoid shifting.
 407         rrs_needing_non_existence_proofs.sort_unstable_by(nsec_ord_extra);
 408         'proof_search_loop: while let Some((name, zone, ty)) = rrs_needing_non_existence_proofs.pop() {
 409                 let nsec_search = res.iter()
 410                         .filter_map(|rr| if let RR::NSec(nsec) = rr { Some(nsec) } else { None })
 411                         .filter(|nsec| nsec.name.ends_with(zone.as_str()));
 412                 for nsec in nsec_search {
 413                         let name_matches = nsec.name.as_str() == name;
 414                         let name_contained = nsec_ord(&nsec.name,  &name) != Ordering::Greater &&
 415                                 nsec_ord(&nsec.next_name, name) == Ordering::Greater;
 416                         if (name_matches && !nsec.types.contains_type(ty)) || name_contained {
 417                                 rrs_needing_non_existence_proofs
 418                                         .retain(|(n, _, t)| *n != name || (name_matches && nsec.types.contains_type(*t)));
 419                                 continue 'proof_search_loop;
 420                         }
 421                 }
 422                 let nsec3_search = res.iter()
 423                         .filter_map(|rr| if let RR::NSec3(nsec3) = rr { Some(nsec3) } else { None })
 424                         .filter(|nsec3| nsec3.name.ends_with(zone.as_str()));
 425
 426                 // Because we will only ever have two entries, a Vec is simpler than a map here.
 427                 let mut nsec3params_to_name_hash = Vec::new();
 428                 for nsec3 in nsec3_search.clone() {
 429                         if nsec3.hash_iterations > 2500 {
 430                                 // RFC 5115 places different limits on the iterations based on the signature key
 431                                 // length, but we just use 2500 for all key types
 432                                 continue;
 433                         }
 434                         if nsec3.hash_algo != 1 { continue; }
 435                         if nsec3params_to_name_hash.iter()
 436                                 .any(|(iterations, salt, _)| *iterations == nsec3.hash_iterations && *salt == &nsec3.salt)
 437                         { continue; }
 438
 439                         let mut hasher = crypto::hash::Hasher::sha1();
 440                         write_name(&mut hasher, &name);
 441                         hasher.update(&nsec3.salt);
 442                         for _ in 0..nsec3.hash_iterations {
 443                                 let res = hasher.finish();
 444                                 hasher = crypto::hash::Hasher::sha1();
 445                                 hasher.update(res.as_ref());
 446                                 hasher.update(&nsec3.salt);
 447                         }
 448                         nsec3params_to_name_hash.push((nsec3.hash_iterations, &nsec3.salt, hasher.finish()));
 449
 450                         if nsec3params_to_name_hash.len() >= 2 {
 451                                 // We only allow for up to two sets of hash_iterations/salt per zone. Beyond that
 452                                 // we assume this is a malicious DoSing proof and give up.
 453                                 break;
 454                         }
 455                 }
 456                 for nsec3 in nsec3_search {
 457                         if nsec3.flags != 0 {
 458                                 // This is an opt-out NSEC3 (or has unknown flags set). Thus, we shouldn't rely on
 459                                 // it as proof that some record doesn't exist.
 460                                 continue;
 461                         }
 462                         if nsec3.hash_algo != 1 { continue; }
 463                         let name_hash = if let Some((_, _, hash)) =
 464                                 nsec3params_to_name_hash.iter()
 465                                 .find(|(iterations, salt, _)| *iterations == nsec3.hash_iterations && *salt == &nsec3.salt)
 466                         {
 467                                 hash
 468                         } else { continue };
 469
 470                         let (start_hash_base32, _) = nsec3.name.split_once(".")
 471                                 .unwrap_or_else(|| { debug_assert!(false); ("", "")});
 472                         let start_hash = if let Ok(start_hash) = base32::decode(start_hash_base32) {
 473                                 start_hash
 474                         } else { continue };
 475                         if start_hash.len() != 20 || nsec3.next_name_hash.len() != 20 { continue; }
 476
 477                         let hash_matches = &start_hash[..] == name_hash.as_ref();
 478                         let hash_contained =
 479                                 &start_hash[..] <= name_hash.as_ref() && &nsec3.next_name_hash[..] > name_hash.as_ref();
 480                         if (hash_matches && !nsec3.types.contains_type(ty)) || hash_contained {
 481                                 rrs_needing_non_existence_proofs
 482                                         .retain(|(n, _, t)| *n != name || (hash_matches && nsec3.types.contains_type(*t)));
 483                                 continue 'proof_search_loop;
 484                         }
 485                 }
 486                 return Err(ValidationError::Invalid);
 487         }
 488
 489         res.retain(|rr| rr.ty() != NSec::TYPE && rr.ty() != NSec3::TYPE);
 490
 491         Ok(VerifiedRRStream {
 492                 verified_rrs: res, valid_from: latest_inception, expires: earliest_expiry,
 493                 max_cache_ttl: min_ttl,
 494         })
 495 }
 496
 497 impl<'a> VerifiedRRStream<'a> {
 498         /// Given a name, resolve any [`CName`] records and return any verified records which were
 499         /// pointed to by the original name.
 500         ///
 501         /// Note that because of [`CName`]s, the [`RR::name`] in the returned records may or may not be
 502         /// equal to `name`.
 503         ///
 504         /// You MUST still check that the current UNIX time is between
 505         /// [`VerifiedRRStream::valid_from`] and [`VerifiedRRStream::expires`] before
 506         /// using any records returned here.
 507         pub fn resolve_name<'b>(&self, name_param: &'b Name) -> Vec<&'a RR> where 'a: 'b {
 508                 let mut dname_name;
 509                 let mut name = name_param;
 510                 loop {
 511                         let mut cname_search = self.verified_rrs.iter()
 512                                 .filter(|rr| rr.name() == name)
 513                                 .filter_map(|rr| if let RR::CName(cn) = rr { Some(cn) } else { None });
 514                         if let Some(cname) = cname_search.next() {
 515                                 name = &cname.canonical_name;
 516                                 continue;
 517                         }
 518
 519                         let mut dname_search = self.verified_rrs.iter()
 520                                 .filter(|rr| name.ends_with(&**rr.name()))
 521                                 .filter_map(|rr| if let RR::DName(dn) = rr { Some(dn) } else { None });
 522                         if let Some(dname) = dname_search.next() {
 523                                 let prefix = name.strip_suffix(&*dname.name).expect("We just filtered for this");
 524                                 let resolved_name = prefix.to_owned() + &dname.delegation_name;
 525                                 dname_name = if let Ok(name) = resolved_name.try_into() {
 526                                         name
 527                                 } else {
 528                                         // This should only happen if the combined name ended up being too long
 529                                         return Vec::new();
 530                                 };
 531                                 name = &dname_name;
 532                                 continue;
 533                         }
 534
 535                         return self.verified_rrs.iter().filter(|rr| rr.name() == name).map(|rr| *rr).collect();
 536                 }
 537         }
 538 }
 539
 540 #[cfg(test)]
 541 mod tests {
 542         #![allow(deprecated)]
 543
 544         use super::*;
 545
 546         use alloc::borrow::ToOwned;
 547
 548         use crate::ser::{parse_rr_stream, write_rr};
 549
 550         use hex_conservative::FromHex;
 551         use rand::seq::SliceRandom;
 552
 553         fn root_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
 554                 let dnskeys = vec![DnsKey {
 555                         name: ".".try_into().unwrap(), flags: 256, protocol: 3, alg: 8,
 556                         pubkey: base64::decode("AwEAAentCcIEndLh2QSK+pHFq/PkKCwioxt75d7qNOUuTPMo0Fcte/NbwDPbocvbZ/eNb5RV/xQdapaJASQ/oDLsqzD0H1+JkHNuuKc2JLtpMxg4glSE4CnRXT2CnFTW5IwOREL+zeqZHy68OXy5ngW5KALbevRYRg/q2qFezRtCSQ0knmyPwgFsghVYLKwi116oxwEU5yZ6W7npWMxt5Z+Qs8diPNWrS5aXLgJtrWUGIIuFfuZwXYziGRP/z3o1EfMo9zZU19KLopkoLXX7Ls/diCXdSEdJXTtFA8w0/OKQviuJebfKscoElCTswukVZ1VX5gbaFEo2xWhHJ9Uo63wYaTk=").unwrap(),
 557                 }, DnsKey {
 558                         name: ".".try_into().unwrap(), flags: 257, protocol: 3, alg: 8,
 559                         pubkey: base64::decode("AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU=").unwrap(),
 560                 }];
 561                 let dnskey_rrsig = RRSig {
 562                         name: ".".try_into().unwrap(), ty: DnsKey::TYPE, alg: 8, labels: 0, orig_ttl: 172800,
 563                         expiration: 1710201600, inception: 1708387200, key_tag: 20326, key_name: ".".try_into().unwrap(),
 564                         signature: base64::decode("GIgwndRLXgt7GX/JNEqSvpYw5ij6EgeQivdC/hmNNuOd2MCQRSxZx2DdLZUoK0tmn2XmOd0vYP06DgkIMUpIXcBstw/Um55WQhvBkBTPIhuB3UvKYJstmq+8hFHWVJwKHTg9xu38JA43VgCV2AbzurbzNOLSgq+rDPelRXzpLr5aYE3y+EuvL+I5gusm4MMajnp5S+ioWOL+yWOnQE6XKoDmlrfcTrYfRSxRtJewPmGeCbNdwEUBOoLUVdkCjQG4uFykcKL40cY8EOhVmM3kXAyuPuNe2Xz1QrIcVad/U4FDns+hd8+W+sWnr8QAtIUFT5pBjXooGS02m6eMdSeU6g==").unwrap(),
 565                 };
 566                 let root_hints = root_hints();
 567                 verify_dnskeys([&dnskey_rrsig], &root_hints, dnskeys.iter().collect()).unwrap();
 568                 let rrs = vec![dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
 569                 (dnskeys, rrs)
 570         }
 571
 572         fn com_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
 573                 let root_dnskeys = root_dnskey().0;
 574                 let mut com_ds = vec![DS {
 575                         name: "com.".try_into().unwrap(), key_tag: 19718, alg: 13, digest_type: 2,
 576                         digest: Vec::from_hex("8ACBB0CD28F41250A80A491389424D341522D946B0DA0C0291F2D3D771D7805A").unwrap(),
 577                 }];
 578                 let ds_rrsig = RRSig {
 579                         name: "com.".try_into().unwrap(), ty: DS::TYPE, alg: 8, labels: 1, orig_ttl: 86400,
 580                         expiration: 1710133200, inception: 1709006400, key_tag: 30903, key_name: ".".try_into().unwrap(),
 581                         signature: base64::decode("WEf7UPqoulxab83nVy/518TpZcC3og0paZ7Lag5iOqGdmGvZnB0yQ42s25iqB/mL6ZU+sSUwYoclcW36Tv/yHgS813T2wOgQ4Jh01aCsjkjvpgpbtnDTxg8bL30LV1obhQhOBFu5SqD4FOMeaV9Fqcff7Z72vC1UdVy0us2Kbhti3uQYrKQlGYcDMlgQAyOE0WEaLT74YfKFTpZvIK0UfUfdUAAiM0Z6PUi7BoyToIN+eKKPvny/+4BP9iVvAOmPMgr+kq/qIWOdsvUaq/S+k7VEPTJEi+i2gODgbMC+3EZZpZie9kv1EEAwGwBtGjE7bLlA1QUbuVeTgczIzrYriQ==").unwrap(),
 582                 };
 583                 verify_rrsig(&ds_rrsig, &root_dnskeys, com_ds.iter().collect()).unwrap();
 584                 let dnskeys = vec![DnsKey {
 585                         name: "com.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
 586                         pubkey: base64::decode("5i9qjJgyH+9MBz7VO269/srLQB/xRRllyUoVq8oLBZshPe4CGzDSFGnXAM3L/QPzB9ULpJuuy7jcxmBZ5Ebo7A==").unwrap(),
 587                 }, DnsKey {
 588                         name: "com.".try_into().unwrap(), flags: 257, protocol: 3, alg: 13,
 589                         pubkey: base64::decode("tx8EZRAd2+K/DJRV0S+hbBzaRPS/G6JVNBitHzqpsGlz8huE61Ms9ANe6NSDLKJtiTBqfTJWDAywEp1FCsEINQ==").unwrap(),
 590                 }];
 591                 let dnskey_rrsig = RRSig {
 592                         name: "com.".try_into().unwrap(), ty: DnsKey::TYPE, alg: 13, labels: 1, orig_ttl: 86400,
 593                         expiration: 1710342155, inception: 1709045855, key_tag: 19718, key_name: "com.".try_into().unwrap(),
 594                         signature: base64::decode("lF2B9nXZn0CgytrHH6xB0NTva4G/aWvg/ypnSxJ8+ZXlvR0C4974yB+nd2ZWzWMICs/oPYMKoQHqxVjnGyu8nA==").unwrap(),
 595                 };
 596                 verify_dnskeys([&dnskey_rrsig], &com_ds, dnskeys.iter().collect()).unwrap();
 597                 let rrs = vec![com_ds.pop().unwrap().into(), ds_rrsig.into(),
 598                         dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
 599                 (dnskeys, rrs)
 600         }
 601
 602         fn ninja_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
 603                 let root_dnskeys = root_dnskey().0;
 604                 let mut ninja_ds = vec![DS {
 605                         name: "ninja.".try_into().unwrap(), key_tag: 46082, alg: 8, digest_type: 2,
 606                         digest: Vec::from_hex("C8F816A7A575BDB2F997F682AAB2653BA2CB5EDDB69B036A30742A33BEFAF141").unwrap(),
 607                 }];
 608                 let ds_rrsig = RRSig {
 609                         name: "ninja.".try_into().unwrap(), ty: DS::TYPE, alg: 8, labels: 1, orig_ttl: 86400,
 610                         expiration: 1710133200, inception: 1709006400, key_tag: 30903, key_name: ".".try_into().unwrap(),
 611                         signature: base64::decode("4fLiekxJy1tHW3sMzmPA/i4Mn6TYoCHDKbcvk3t3N6IXMkACSgU+6P5NxSMxo5Xa7YL5UuE1ICDKxel5o5WzyvjaRQA//hZomjwnCzqyG2XoS6Va8cULSOA5jOU153NSCvos39iHeJnuPINzbMAfsKcg6Ib/IDmNnpouQF53hQzVy+5MGLlGPUZjSO6b4GIslyKpLG0tBLKXM5rZXREPJClEY+LWKOtAS1iARqdsWmSnKxZCpgnEjmkqJBtjCus+s6AtMteBHIFyebwA7oUDNtJ3Im1dO5b6sUoGP8gUgnqdFELSLEeEhKYKpO+jSruI8g/gjNIb5C9vDwAtcSoAew==").unwrap(),
 612                 };
 613                 verify_rrsig(&ds_rrsig, &root_dnskeys, ninja_ds.iter().collect()).unwrap();
 614                 let dnskeys = vec![DnsKey {
 615                         name: "ninja.".try_into().unwrap(), flags: 256, protocol: 3, alg: 8,
 616                         pubkey: base64::decode("AwEAAb6FWe0O0qxUkA+LghF71OPWt0WNqBaCi34HCV6Agjz70RN/j7yGi3xCExM8MkzyrbXd5yYFP4X7TCGEzI5ofLNq7GVIj9laZO0WYS8DNdCMN7qkVVaYeR2UeeGsdvIJqRWzlynABAKnCzX+y5np77FBsle4cAIGxJE/0F5kn61F").unwrap(),
 617                 }, DnsKey {
 618                         name: "ninja.".try_into().unwrap(), flags: 256, protocol: 3, alg: 8,
 619                         pubkey: base64::decode("AwEAAZlkeshgX2Q9i/X4zZMc2ciKO2a3+mOiOCuYHYbwt/43XXdcHdjtOUrWFFJkGBBWsHQZ/Bg0CeUGqvUGywd3ndY5IAX+e7PnuIUlhKDcNmntcQbxhrH+cpmOoB3Xo/96JoVjurPxTuJE23I1oA+0aESc581f4pKEbTp4WI7m5xNn").unwrap(),
 620                 }, DnsKey {
 621                         name: "ninja.".try_into().unwrap(), flags: 257, protocol: 3, alg: 8,
 622                         pubkey: base64::decode("AwEAAcceTJ3Ekkmiez70L8uNVrTDrHZxXHrQHEHQ1DJZDRXDxizuSy0prDXy1yybMqcKAkPL0IruvJ9vHg5j2eHN/hM8RVqCQ1wHgLdQASyUL37VtmLuyNmuiFpYmT+njXVh/tzRHZ4cFxrLAtACWDe6YaPApnVkJ0FEcMnKCQaymBaLX02WQOYuG3XdBr5mQQTtMs/kR/oh83QBcSxyCg3KS7G8IPP6MQPK0za94gsW9zlI5rgN2gpSjbU2qViGjDhw7N3PsC37PLTSLirUmkufeMkP9sfhDjAbP7Nv6FmpTDAIRmBmV0HBT/YNBTUBP89DmEDsrYL8knjkrOaLqV5wgkk=").unwrap(),
 623                 }];
 624                 let dnskey_rrsig = RRSig {
 625                         name: "ninja.".try_into().unwrap(), ty: DnsKey::TYPE, alg: 8, labels: 1, orig_ttl: 3600,
 626                         expiration: 1710689605, inception: 1708871605, key_tag: 46082, key_name: "ninja.".try_into().unwrap(),
 627                         signature: base64::decode("kYxV1z+9Ikxqbr13N+8HFWWnAUcvHkr/dmkdf21mliUhH4cxeYCXC6a95X+YzjYQEQi3fU+S346QBDJkbFYCca5q/TzUdE7ej1B/0uTzhgNrQznm0O6sg6DI3HuqDfZp2oaBQm2C/H4vjkcUW9zxgKP8ON0KKLrZUuYelGazeGSOscjDDlmuNMD7tHhFrmK9BiiX+8sp8Cl+IE5ArP+CPXsII+P+R2QTmTqw5ovJch2FLRMRqCliEzTR/IswBI3FfegZR8h9xJ0gfyD2rDqf6lwJhD1K0aS5wxia+bgzpRIKwiGfP87GDYzkygHr83QbmZS2YG1nxlnQ2rgkqTGgXA==").unwrap(),
 628                 };
 629                 verify_dnskeys([&dnskey_rrsig], &ninja_ds, dnskeys.iter().collect()).unwrap();
 630                 let rrs = vec![ninja_ds.pop().unwrap().into(), ds_rrsig.into(),
 631                         dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskeys[2].clone().into(),
 632                         dnskey_rrsig.into()];
 633                 (dnskeys, rrs)
 634         }
 635
 636         fn mattcorallo_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
 637                 let com_dnskeys = com_dnskey().0;
 638                 let mut mattcorallo_ds = vec![DS {
 639                         name: "mattcorallo.com.".try_into().unwrap(), key_tag: 25630, alg: 13, digest_type: 2,
 640                         digest: Vec::from_hex("DC608CA62BE89B3B9DB1593F9A59930D24FBA79D486E19C88A7792711EC00735").unwrap(),
 641                 }];
 642                 let ds_rrsig = RRSig {
 643                         name: "mattcorallo.com.".try_into().unwrap(), ty: DS::TYPE, alg: 13, labels: 2, orig_ttl: 86400,
 644                         expiration: 1709359258, inception: 1708750258, key_tag: 4534, key_name: "com.".try_into().unwrap(),
 645                         signature: base64::decode("VqYztN78+g170QPeFOqWFkU1ZrKIsndUYj3Y+8x1ZR1v/YGJXLQe5qkcLWjrl/vMyCgknC3Q/dhcS2ag0a7W1w==").unwrap(),
 646                 };
 647                 verify_rrsig(&ds_rrsig, &com_dnskeys, mattcorallo_ds.iter().collect()).unwrap();
 648                 let dnskeys = vec![DnsKey {
 649                         name: "mattcorallo.com.".try_into().unwrap(), flags: 257, protocol: 3, alg: 13,
 650                         pubkey: base64::decode("8BP51Etiu4V6cHvGCYqwNqCip4pvHChjEgkgG4zpdDvO9YRcTGuV/p71hAUut2/qEdxqXfUOT/082BJ/Z089DA==").unwrap(),
 651                 }, DnsKey {
 652                         name: "mattcorallo.com.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
 653                         pubkey: base64::decode("AhUlQ8qk7413R0m4zKfTDHb/FQRlKag+ncGXxNxT+qTzSZTb9E5IGjo9VCEp6+IMqqpkd4GrXpN9AzDvlcU9Ig==").unwrap(),
 654                 }, DnsKey {
 655                         name: "mattcorallo.com.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
 656                         pubkey: base64::decode("s165ZpubX31FC2CVeIVVvnPpTnJUoOM8CGt3wk4AtxPftYadgI8uFM43F4QaD67v8B8Vshl63frxN50dc44VHQ==").unwrap(),
 657                 }];
 658                 let dnskey_rrsig = RRSig {
 659                         name: "mattcorallo.com.".try_into().unwrap(), ty: DnsKey::TYPE, alg: 13, labels: 2, orig_ttl: 604800,
 660                         expiration:1710262250, inception: 1709047250, key_tag: 25630, key_name: "mattcorallo.com.".try_into().unwrap(),
 661                         signature: base64::decode("dMLDvNU96m+tfgpDIQPxMBJy7T0xyZDj3Wws4b4E6+g3nt5iULdWJ8Eqrj+86KLerOVt7KH4h/YcHP18hHdMGA==").unwrap(),
 662                 };
 663                 verify_dnskeys([&dnskey_rrsig], &mattcorallo_ds, dnskeys.iter().collect()).unwrap();
 664                 let rrs = vec![mattcorallo_ds.pop().unwrap().into(), ds_rrsig.into(),
 665                         dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskeys[2].clone().into(),
 666                         dnskey_rrsig.into()];
 667                 (dnskeys, rrs)
 668         }
 669
 670         fn mattcorallo_txt_record() -> (Txt, RRSig) {
 671                 let txt_resp = Txt {
 672                         name: "matt.user._bitcoin-payment.mattcorallo.com.".try_into().unwrap(),
 673                         data: "bitcoin:?b12=lno1qsgqmqvgm96frzdg8m0gc6nzeqffvzsqzrxqy32afmr3jn9ggkwg3egfwch2hy0l6jut6vfd8vpsc3h89l6u3dm4q2d6nuamav3w27xvdmv3lpgklhg7l5teypqz9l53hj7zvuaenh34xqsz2sa967yzqkylfu9xtcd5ymcmfp32h083e805y7jfd236w9afhavqqvl8uyma7x77yun4ehe9pnhu2gekjguexmxpqjcr2j822xr7q34p078gzslf9wpwz5y57alxu99s0z2ql0kfqvwhzycqq45ehh58xnfpuek80hw6spvwrvttjrrq9pphh0dpydh06qqspp5uq4gpyt6n9mwexde44qv7lstzzq60nr40ff38u27un6y53aypmx0p4qruk2tf9mjwqlhxak4znvna5y".to_owned().into_bytes(),
 674                 };
 675                 let txt_rrsig = RRSig {
 676                         name: "matt.user._bitcoin-payment.mattcorallo.com.".try_into().unwrap(),
 677                         ty: Txt::TYPE, alg: 13, labels: 5, orig_ttl: 3600, expiration: 1710182540,
 678                         inception: 1708967540, key_tag: 47959, key_name: "mattcorallo.com.".try_into().unwrap(),
 679                         signature: base64::decode("vwI89CkCzWI2Iwgl3UeiSo4GKSaKCh7/E/7nE8Hbb1WQvdpwdKSB6jE4nwM1BN4wdPhi7kxd7hyS/uGiKZjxsg==").unwrap(),
 680                 };
 681                 (txt_resp, txt_rrsig)
 682         }
 683
 684         fn bitcoin_ninja_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
 685                 let ninja_dnskeys = ninja_dnskey().0;
 686                 let mut bitcoin_ninja_ds = vec![DS {
 687                         name: "bitcoin.ninja.".try_into().unwrap(), key_tag: 63175, alg: 13, digest_type: 2,
 688                         digest: Vec::from_hex("D554267D7F730B9602BF4436F46BB967EFE3C4202CA7F082F2D5DD24DF4EBDED").unwrap(),
 689                 }];
 690                 let ds_rrsig = RRSig {
 691                         name: "bitcoin.ninja.".try_into().unwrap(), ty: DS::TYPE, alg: 8, labels: 2, orig_ttl: 3600,
 692                         expiration: 1710689605, inception: 1708871605, key_tag: 34164, key_name: "ninja.".try_into().unwrap(),
 693                         signature: base64::decode("g/Xyv6cwrGlpEyhXDV1vdKpoy9ZH7HF6MK/41q0GyCrd9wL8BrzKQgwvLqOBhvfUWACJd66CJpEMZnSwH8ZDEcWYYsd8nY2giGX7In/zGz+PA35HlFqy2BgvQcWCaN5Ht/+BUTgZXHbJBEko1iWLZ1yhciD/wA+XTqS7ScQUu88=").unwrap(),
 694                 };
 695                 verify_rrsig(&ds_rrsig, &ninja_dnskeys, bitcoin_ninja_ds.iter().collect()).unwrap();
 696                 let dnskeys = vec![DnsKey {
 697                         name: "bitcoin.ninja.".try_into().unwrap(), flags: 257, protocol: 3, alg: 13,
 698                         pubkey: base64::decode("0lIZI5BH7kk75R/+1RMReQE0J2iQw0lY2aQ6eCM7F1E9ZMNcIGC1cDl5+FcAU1mP8F3Ws2FjgvCC0S2q8OBF2Q==").unwrap(),
 699                 }, DnsKey {
 700                         name: "bitcoin.ninja.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
 701                         pubkey: base64::decode("zbm2rKgzXDtRFV0wFmnlUMdOXWcNKEjGIHsZ7bAnTzbh7TJEzPctSttCaTvdaORxLL4AiOk+VG2iXnL2UuC/xQ==").unwrap(),
 702                 }];
 703                 let dnskey_rrsig = RRSig {
 704                         name: "bitcoin.ninja.".try_into().unwrap(), ty: DnsKey::TYPE, alg: 13, labels: 2, orig_ttl: 604800,
 705                         expiration: 1709947337, inception: 1708732337, key_tag: 63175, key_name: "bitcoin.ninja.".try_into().unwrap(),
 706                         signature: base64::decode("Y3To5FZoZuBDUMtIBZXqzRtufyRqOlDqbHVcoZQitXxerCgNQ1CsVdmoFVMmZqRV5n4itINX2x+9G/31j410og==").unwrap(),
 707                 };
 708                 verify_dnskeys([&dnskey_rrsig], &bitcoin_ninja_ds, dnskeys.iter().collect()).unwrap();
 709                 let rrs = vec![bitcoin_ninja_ds.pop().unwrap().into(), ds_rrsig.into(),
 710                         dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
 711                 (dnskeys, rrs)
 712         }
 713
 714         fn bitcoin_ninja_txt_record() -> (Txt, RRSig) {
 715                 let txt_resp = Txt {
 716                         name: "txt_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 717                         data: "dnssec_prover_test".to_owned().into_bytes(),
 718                 };
 719                 let txt_rrsig = RRSig {
 720                         name: "txt_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 721                         ty: Txt::TYPE, alg: 13, labels: 4, orig_ttl: 30, expiration: 1709950937,
 722                         inception: 1708735937, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 723                         signature: base64::decode("S5swe6BMTqwLBU6FH2D50j5A9i5hzli79Vlf5xB515s6YhmcqodbPZnFlN49RdBE43PKi9MJcXpHTiBxvTYBeQ==").unwrap(),
 724                 };
 725                 (txt_resp, txt_rrsig)
 726         }
 727
 728         fn bitcoin_ninja_cname_record() -> (CName, RRSig) {
 729                 let cname_resp = CName {
 730                         name: "cname_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 731                         canonical_name: "txt_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 732                 };
 733                 let cname_rrsig = RRSig {
 734                         name: "cname_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 735                         ty: CName::TYPE, alg: 13, labels: 4, orig_ttl: 30, expiration: 1709950937,
 736                         inception: 1708735937, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 737                         signature: base64::decode("S8AYftjBADKutt4XKVzqfY7EpvbanpwOGhMDk0lEDFpvNRjl0fZ1k/FEW6AXSUyX2wOaX8hvwXUuZjpr5INuMw==").unwrap(),
 738                 };
 739                 (cname_resp, cname_rrsig)
 740         }
 741
 742         fn bitcoin_ninja_txt_sort_edge_cases_records() -> (Vec<Txt>, RRSig) {
 743                 let txts = vec![Txt {
 744                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 745                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab".to_owned().into_bytes(),
 746                 }, Txt {
 747                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 748                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa".to_owned().into_bytes(),
 749                 }, Txt {
 750                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 751                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabaa".to_owned().into_bytes(),
 752                 }, Txt {
 753                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 754                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaba".to_owned().into_bytes(),
 755                 }, Txt {
 756                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 757                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa".to_owned().into_bytes(),
 758                 }, Txt {
 759                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 760                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaab".to_owned().into_bytes(),
 761                 }, Txt {
 762                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 763                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa".to_owned().into_bytes(),
 764                 }, Txt {
 765                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 766                         data: "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaba".to_owned().into_bytes(),
 767                 }];
 768                 let rrsig = RRSig {
 769                         name: "txt_sort_order.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 770                         ty: Txt::TYPE, alg: 13, labels: 4, orig_ttl: 30, expiration: 1709950937,
 771                         inception: 1708735937, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 772                         signature: base64::decode("kUKbtoNYM6qnu95QJoyUwtzZoMTcRVfNfIIqSwROLdMYqqq70REjCu99ecjOW/Zm2XRsJ9KgGBB/SuiBdunLew==").unwrap(),
 773                 };
 774                 (txts, rrsig)
 775         }
 776
 777         /// Note that the NSEC3 proofs here are for asdf., any other prefix may fail NSEC checks.
 778         fn bitcoin_ninja_wildcard_record(pfx: &str) -> (Txt, RRSig, NSec3, RRSig) {
 779                 let name: Name = (pfx.to_owned() + ".wildcard_test.dnssec_proof_tests.bitcoin.ninja.").try_into().unwrap();
 780                 let txt_resp = Txt {
 781                         name: name.clone(),
 782                         data: "wildcard_test".to_owned().into_bytes(),
 783                 };
 784                 let txt_rrsig = RRSig {
 785                         name: name.clone(),
 786                         ty: Txt::TYPE, alg: 13, labels: 4, orig_ttl: 30, expiration: 1709950937,
 787                         inception: 1708735937, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 788                         signature: base64::decode("Y+grWXzbZfrcoHRZC9kfRzWp002jZzBDmpSQx6qbUgN0x3aH9kZIOVy0CtQH2vwmLUxoJ+RlezgunNI6LciBzQ==").unwrap(),
 789                 };
 790                 let nsec3 = NSec3 {
 791                         name: "s5sn15c8lcpo7v7f1p0ms6vlbdejt0kd.bitcoin.ninja.".try_into().unwrap(),
 792                         hash_algo: 1, flags: 0, hash_iterations: 0, salt: Vec::from_hex("059855BD1077A2EB").unwrap(),
 793                         next_name_hash: crate::base32::decode("T8QO5GO6M76HBR5Q6T3G6BDR79KBMDSA").unwrap(),
 794                         types: NSecTypeMask::from_types(&[AAAA::TYPE, RRSig::TYPE]),
 795                 };
 796                 let nsec3_rrsig = RRSig {
 797                         name: "s5sn15c8lcpo7v7f1p0ms6vlbdejt0kd.bitcoin.ninja.".try_into().unwrap(),
 798                         ty: NSec3::TYPE, alg: 13, labels: 3, orig_ttl: 60, expiration: 1710267741,
 799                         inception: 1709052741, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 800                         signature: base64::decode("Aiz6My3goWQuIIw/XNUo+kICsp9e4C5XUUs/0Ap+WIEFJsaN/MPGegiR/c5GUGdtHt1GdeP9CU3H1OGkN9MpWQ==").unwrap(),
 801                 };
 802                 (txt_resp, txt_rrsig, nsec3, nsec3_rrsig)
 803         }
 804
 805         fn bitcoin_ninja_cname_wildcard_record() -> (CName, RRSig, Txt, RRSig, [(NSec3, RRSig); 3]) {
 806                 let cname_resp = CName {
 807                         name: "asdf.cname_wildcard_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 808                         canonical_name: "cname.wildcard_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 809                 };
 810                 let cname_rrsig = RRSig {
 811                         name: "asdf.cname_wildcard_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 812                         ty: CName::TYPE, alg: 13, labels: 4, orig_ttl: 30, expiration: 1709950937,
 813                         inception: 1708735937, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 814                         signature: base64::decode("qR/zy8JyihI4qCAMwn7jGU6FARW/Hl8/u+cajef9raKs5aOxnZpCrp19Tot9qPG6px9PzqaghAIP1EmxfgxtRQ==").unwrap(),
 815                 };
 816                 let nsec3_a = NSec3 {
 817                         name: "2tn37cu4ulmlqqke9a3dc9g8bt8b4f6s.bitcoin.ninja.".try_into().unwrap(),
 818                         hash_algo: 1, flags: 0, hash_iterations: 0,
 819                         salt: Vec::from_hex("059855BD1077A2EB").unwrap(),
 820                         next_name_hash: crate::base32::decode("4OKFHSHS41D00EDL0HNPMT7R6IKMJ48H").unwrap(),
 821                         types: NSecTypeMask::from_types(&[DName::TYPE, RRSig::TYPE]),
 822                 };
 823                 let nsec3_a_rrsig = RRSig {
 824                         name: "2tn37cu4ulmlqqke9a3dc9g8bt8b4f6s.bitcoin.ninja.".try_into().unwrap(),
 825                         ty: NSec3::TYPE, alg: 13, labels: 3, orig_ttl: 60, expiration: 1710266541,
 826                         inception: 1709051541, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 827                         signature: base64::decode("tSsPsYIf1o5+piUZX9YwcWKSZgVQOB37TRdb+VL0PmcPaLpzFGJCwU0snn8tMN/BuILG+KZY+UPmAEZZFz4Fvg==").unwrap(),
 828                 };
 829                 let nsec3_b = NSec3 {
 830                         name: "cjqf7lfu6ev77k9m2o6iih56kbfnshin.bitcoin.ninja.".try_into().unwrap(),
 831                         hash_algo: 1, flags: 0, hash_iterations: 0,
 832                         salt: Vec::from_hex("059855BD1077A2EB").unwrap(),
 833                         next_name_hash: crate::base32::decode("DD3MT23L63OIHQPIMA5O2NULSVIGIJ3N").unwrap(),
 834                         types: NSecTypeMask::from_types(&[A::TYPE, AAAA::TYPE, RRSig::TYPE]),
 835                 };
 836                 let nsec3_b_rrsig = RRSig {
 837                         name: "cjqf7lfu6ev77k9m2o6iih56kbfnshin.bitcoin.ninja.".try_into().unwrap(),
 838                         ty: NSec3::TYPE, alg: 13, labels: 3, orig_ttl: 60, expiration: 1710238940,
 839                         inception: 1709023940, key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 840                         signature: base64::decode("CtYriOUI6RzoIG3SigHbBYiTkrEvmSEvP+aOLo1wylqkbBT2iG7pK8VNucKETqMZCROLnmRBw8DHK/8rosKYsA==").unwrap(),
 841                 };
 842                 let (txt_resp, txt_rrsig, nsec3_c, nsec3_c_rrsig) = bitcoin_ninja_wildcard_record("asdf");
 843                 (cname_resp, cname_rrsig, txt_resp, txt_rrsig,
 844                         [(nsec3_a, nsec3_a_rrsig), (nsec3_b, nsec3_b_rrsig), (nsec3_c, nsec3_c_rrsig)])
 845         }
 846
 847         fn bitcoin_ninja_nsec_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
 848                 let bitcoin_ninja_dnskeys = bitcoin_ninja_dnskey().0;
 849                 let mut bitcoin_ninja_ds = vec![DS {
 850                         name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 851                         key_tag: 8036, alg: 13, digest_type: 2,
 852                         digest: Vec::from_hex("8EC0DAE4501233979196EBED206212BCCC49E40E086EC2E56558EC1F6FB62715").unwrap(),
 853                 }];
 854                 let ds_rrsig = RRSig {
 855                         name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 856                         ty: DS::TYPE, alg: 13, labels: 4, orig_ttl: 30, expiration: 1710190967, inception: 1708975967,
 857                         key_tag: 37639, key_name: "bitcoin.ninja.".try_into().unwrap(),
 858                         signature: base64::decode("qUexI1yufru0lzkND4uY1r8bsXrXnMVNjPxTLbLauRo/+YW041w9wFu4sl2/cqq3psWvGcBVTltwIdjDJQUcZQ==").unwrap(),
 859                 };
 860                 verify_rrsig(&ds_rrsig, &bitcoin_ninja_dnskeys, bitcoin_ninja_ds.iter().collect()).unwrap();
 861                 let dnskeys = vec![DnsKey {
 862                         name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(), flags: 257, protocol: 3, alg: 13,
 863                         pubkey: base64::decode("MUnIhm31ySIr9WXIBVQc38wlSHHvYaKIOFR8WYl4O9MJBlywWeUdx16oGinCe2FjjMkUkKn9kV5zzWhGmrdIbQ==").unwrap(),
 864                 }, DnsKey {
 865                         name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
 866                         pubkey: base64::decode("GGZP8k44sro2iTzWKFoHOnbvrAhNiQv+Ng2hr0WNyb24aA5rLYLFac3N7B82xRU2odd60utYJkmU0yA//zyOzw==").unwrap(),
 867                 }];
 868                 let dnskey_rrsig = RRSig {
 869                         name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 870                         ty: DnsKey::TYPE, alg: 13, labels: 4, orig_ttl: 604800, expiration: 1710190613, inception: 1708975613,
 871                         key_tag: 8036, key_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 872                         signature: base64::decode("nX+hkH14Kvjp26Z8x/pjYh5CQW3p9lZQQ+FVJcKHyfjAilEubpw6ihlPpb3Ddh9BbyxhCEFhXDMG2g4od9Y2ow==").unwrap(),
 873                 };
 874                 verify_dnskeys([&dnskey_rrsig], &bitcoin_ninja_ds, dnskeys.iter().collect()).unwrap();
 875                 let rrs = vec![bitcoin_ninja_ds.pop().unwrap().into(), ds_rrsig.into(),
 876                         dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
 877                 (dnskeys, rrs)
 878         }
 879
 880         fn bitcoin_ninja_nsec_record() -> (Txt, RRSig) {
 881                 let txt_resp = Txt {
 882                         name: "a.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 883                         data: "txt_a".to_owned().into_bytes(),
 884                 };
 885                 let txt_rrsig = RRSig {
 886                         name: "a.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 887                         ty: Txt::TYPE, alg: 13, labels: 5, orig_ttl: 30, expiration: 1710201091, inception: 1708986091,
 888                         key_tag: 42215, key_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 889                         signature: base64::decode("rhDcZvSk4ngyDmMif3oBmoDMO1YoimRrvOp/ErlSaujN+OCMKocgWkssedQCx7hyLxwsFLvaaiNXCr/7ZaSe4Q==").unwrap(),
 890                 };
 891                 (txt_resp, txt_rrsig)
 892         }
 893
 894         fn bitcoin_ninja_nsec_wildcard_record(pfx: &str) -> (Txt, RRSig, NSec, RRSig) {
 895                 let name: Name = (pfx.to_owned() + ".wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.").try_into().unwrap();
 896                 let txt_resp = Txt {
 897                         name: name.clone(),
 898                         data: "wildcard_test".to_owned().into_bytes(),
 899                 };
 900                 let txt_rrsig = RRSig {
 901                         name: name.clone(),
 902                         ty: Txt::TYPE, alg: 13, labels: 5, orig_ttl: 30, expiration: 1710190613, inception: 1708975613,
 903                         key_tag: 42215, key_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 904                         signature: base64::decode("E3+tEe5TxI8OSNP+LVHsOagjQ/9heD6a4ICYBgS8mkfRuqgFeXhz22n4f2LzssdXe1xzwayt7nROdHdqdfHDYg==").unwrap(),
 905                 };
 906                 let nsec = NSec {
 907                         name: "*.wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 908                         next_name: "override.wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 909                         types: NSecTypeMask::from_types(&[Txt::TYPE, RRSig::TYPE, NSec::TYPE]),
 910                 };
 911                 let nsec_rrsig = RRSig {
 912                         name: "*.wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 913                         ty: NSec::TYPE, alg: 13, labels: 5, orig_ttl: 60, expiration: 1710191561, inception: 1708976561,
 914                         key_tag: 42215, key_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 915                         signature: base64::decode("ZjQMw1dt1a61d4ls3pMkCnBiWRaMyAwn6UapRaYNtdA8cTbbqbhzJZCvc6ZBhZ90CzxCYR0h/eavowlF1j53Gg==").unwrap(),
 916                 };
 917                 (txt_resp, txt_rrsig, nsec, nsec_rrsig)
 918         }
 919
 920         fn bitcoin_ninja_nsec_post_override_wildcard_record(pfx: &str) -> (Txt, RRSig, NSec, RRSig) {
 921                 let name: Name = (pfx.to_owned() + ".wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.").try_into().unwrap();
 922                 let txt_resp = Txt {
 923                         name: name.clone(),
 924                         data: "wildcard_test".to_owned().into_bytes(),
 925                 };
 926                 let txt_rrsig = RRSig {
 927                         name: name.clone(),
 928                         ty: Txt::TYPE, alg: 13, labels: 5, orig_ttl: 30, expiration: 1710190613, inception: 1708975613,
 929                         key_tag: 42215, key_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 930                         signature: base64::decode("E3+tEe5TxI8OSNP+LVHsOagjQ/9heD6a4ICYBgS8mkfRuqgFeXhz22n4f2LzssdXe1xzwayt7nROdHdqdfHDYg==").unwrap(),
 931                 };
 932                 let nsec = NSec {
 933                         name: "override.wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 934                         next_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 935                         types: NSecTypeMask::from_types(&[Txt::TYPE, RRSig::TYPE, NSec::TYPE]),
 936                 };
 937                 let nsec_rrsig = RRSig {
 938                         name: "override.wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 939                         ty: NSec::TYPE, alg: 13, labels: 6, orig_ttl: 60, expiration: 1710201063, inception: 1708986063,
 940                         key_tag: 42215, key_name: "nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap(),
 941                         signature: base64::decode("pBNXnNPR0fiGEtkm/0PlnDW830JWv8KgnyhnOit6wLHtiWoLhMiS48utji3FbTfelCnePjbLh/t7SF941O2QTA==").unwrap(),
 942                 };
 943                 (txt_resp, txt_rrsig, nsec, nsec_rrsig)
 944         }
 945
 946         #[test]
 947         fn check_txt_record_a() {
 948                 let dnskeys = mattcorallo_dnskey().0;
 949                 let (txt, txt_rrsig) = mattcorallo_txt_record();
 950                 let txt_resp = [txt];
 951                 verify_rrsig(&txt_rrsig, &dnskeys, txt_resp.iter().collect()).unwrap();
 952         }
 953
 954         #[test]
 955         fn check_single_txt_proof() {
 956                 let mut rr_stream = Vec::new();
 957                 for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 958                 for rr in com_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 959                 for rr in mattcorallo_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 960                 let (txt, txt_rrsig) = mattcorallo_txt_record();
 961                 for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
 962
 963                 let mut rrs = parse_rr_stream(&rr_stream).unwrap();
 964                 rrs.shuffle(&mut rand::rngs::OsRng);
 965                 let verified_rrs = verify_rr_stream(&rrs).unwrap();
 966                 assert_eq!(verified_rrs.verified_rrs.len(), 1);
 967                 if let RR::Txt(txt) = &verified_rrs.verified_rrs[0] {
 968                         assert_eq!(txt.name.as_str(), "matt.user._bitcoin-payment.mattcorallo.com.");
 969                         assert_eq!(txt.data, b"bitcoin:?b12=lno1qsgqmqvgm96frzdg8m0gc6nzeqffvzsqzrxqy32afmr3jn9ggkwg3egfwch2hy0l6jut6vfd8vpsc3h89l6u3dm4q2d6nuamav3w27xvdmv3lpgklhg7l5teypqz9l53hj7zvuaenh34xqsz2sa967yzqkylfu9xtcd5ymcmfp32h083e805y7jfd236w9afhavqqvl8uyma7x77yun4ehe9pnhu2gekjguexmxpqjcr2j822xr7q34p078gzslf9wpwz5y57alxu99s0z2ql0kfqvwhzycqq45ehh58xnfpuek80hw6spvwrvttjrrq9pphh0dpydh06qqspp5uq4gpyt6n9mwexde44qv7lstzzq60nr40ff38u27un6y53aypmx0p4qruk2tf9mjwqlhxak4znvna5y");
 970                 } else { panic!(); }
 971                 assert_eq!(verified_rrs.valid_from, 1709047250); // The mattcorallo.com. DNSKEY RRSig was created last
 972                 assert_eq!(verified_rrs.expires, 1709359258); // The mattcorallo.com. DS RRSig expires first
 973                 assert_eq!(verified_rrs.max_cache_ttl, 3600); // The TXT record had the shortest TTL
 974         }
 975
 976         #[test]
 977         fn check_txt_record_b() {
 978                 let dnskeys = bitcoin_ninja_dnskey().0;
 979                 let (txt, txt_rrsig) = bitcoin_ninja_txt_record();
 980                 let txt_resp = [txt];
 981                 verify_rrsig(&txt_rrsig, &dnskeys, txt_resp.iter().collect()).unwrap();
 982         }
 983
 984         #[test]
 985         fn check_cname_record() {
 986                 let dnskeys = bitcoin_ninja_dnskey().0;
 987                 let (cname, cname_rrsig) = bitcoin_ninja_cname_record();
 988                 let cname_resp = [cname];
 989                 verify_rrsig(&cname_rrsig, &dnskeys, cname_resp.iter().collect()).unwrap();
 990         }
 991
 992         #[test]
 993         fn check_multi_zone_proof() {
 994                 let mut rr_stream = Vec::new();
 995                 for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 996                 for rr in com_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 997                 for rr in ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 998                 for rr in mattcorallo_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
 999                 let (txt, txt_rrsig) = mattcorallo_txt_record();
1000                 for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1001                 for rr in bitcoin_ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1002                 let (txt, txt_rrsig) = bitcoin_ninja_txt_record();
1003                 for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1004                 let (cname, cname_rrsig) = bitcoin_ninja_cname_record();
1005                 for rr in [RR::CName(cname), RR::RRSig(cname_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1006
1007                 let mut rrs = parse_rr_stream(&rr_stream).unwrap();
1008                 rrs.shuffle(&mut rand::rngs::OsRng);
1009                 let mut verified_rrs = verify_rr_stream(&rrs).unwrap();
1010                 verified_rrs.verified_rrs.sort();
1011                 assert_eq!(verified_rrs.verified_rrs.len(), 3);
1012                 if let RR::Txt(txt) = &verified_rrs.verified_rrs[0] {
1013                         assert_eq!(txt.name.as_str(), "matt.user._bitcoin-payment.mattcorallo.com.");
1014                         assert_eq!(txt.data, b"bitcoin:?b12=lno1qsgqmqvgm96frzdg8m0gc6nzeqffvzsqzrxqy32afmr3jn9ggkwg3egfwch2hy0l6jut6vfd8vpsc3h89l6u3dm4q2d6nuamav3w27xvdmv3lpgklhg7l5teypqz9l53hj7zvuaenh34xqsz2sa967yzqkylfu9xtcd5ymcmfp32h083e805y7jfd236w9afhavqqvl8uyma7x77yun4ehe9pnhu2gekjguexmxpqjcr2j822xr7q34p078gzslf9wpwz5y57alxu99s0z2ql0kfqvwhzycqq45ehh58xnfpuek80hw6spvwrvttjrrq9pphh0dpydh06qqspp5uq4gpyt6n9mwexde44qv7lstzzq60nr40ff38u27un6y53aypmx0p4qruk2tf9mjwqlhxak4znvna5y");
1015                 } else { panic!(); }
1016                 if let RR::Txt(txt) = &verified_rrs.verified_rrs[1] {
1017                         assert_eq!(txt.name.as_str(), "txt_test.dnssec_proof_tests.bitcoin.ninja.");
1018                         assert_eq!(txt.data, b"dnssec_prover_test");
1019                 } else { panic!(); }
1020                 if let RR::CName(cname) = &verified_rrs.verified_rrs[2] {
1021                         assert_eq!(cname.name.as_str(), "cname_test.dnssec_proof_tests.bitcoin.ninja.");
1022                         assert_eq!(cname.canonical_name.as_str(), "txt_test.dnssec_proof_tests.bitcoin.ninja.");
1023                 } else { panic!(); }
1024
1025                 let filtered_rrs =
1026                         verified_rrs.resolve_name(&"cname_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap());
1027                 assert_eq!(filtered_rrs.len(), 1);
1028                 if let RR::Txt(txt) = &filtered_rrs[0] {
1029                         assert_eq!(txt.name.as_str(), "txt_test.dnssec_proof_tests.bitcoin.ninja.");
1030                         assert_eq!(txt.data, b"dnssec_prover_test");
1031                 } else { panic!(); }
1032         }
1033
1034         #[test]
1035         fn check_wildcard_record() {
1036                 // Wildcard proof works for any name, even multiple names
1037                 let dnskeys = bitcoin_ninja_dnskey().0;
1038                 let (txt, txt_rrsig, _, _) = bitcoin_ninja_wildcard_record("name");
1039                 let txt_resp = [txt];
1040                 verify_rrsig(&txt_rrsig, &dnskeys, txt_resp.iter().collect()).unwrap();
1041
1042                 let (txt, txt_rrsig, _, _) = bitcoin_ninja_wildcard_record("anoter_name");
1043                 let txt_resp = [txt];
1044                 verify_rrsig(&txt_rrsig, &dnskeys, txt_resp.iter().collect()).unwrap();
1045
1046                 let (txt, txt_rrsig, _, _) = bitcoin_ninja_wildcard_record("multiple.names");
1047                 let txt_resp = [txt];
1048                 verify_rrsig(&txt_rrsig, &dnskeys, txt_resp.iter().collect()).unwrap();
1049         }
1050
1051         #[test]
1052         fn check_wildcard_proof() {
1053                 let mut rr_stream = Vec::new();
1054                 for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1055                 for rr in ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1056                 for rr in bitcoin_ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1057                 let (cname, cname_rrsig, txt, txt_rrsig, nsec3s) = bitcoin_ninja_cname_wildcard_record();
1058                 for rr in [RR::CName(cname), RR::RRSig(cname_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1059                 for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1060                 for (rra, rrb) in nsec3s { write_rr(&rra, 1, &mut rr_stream); write_rr(&rrb, 1, &mut rr_stream); }
1061
1062                 let mut rrs = parse_rr_stream(&rr_stream).unwrap();
1063                 rrs.shuffle(&mut rand::rngs::OsRng);
1064                 let mut verified_rrs = verify_rr_stream(&rrs).unwrap();
1065                 verified_rrs.verified_rrs.sort();
1066                 assert_eq!(verified_rrs.verified_rrs.len(), 2);
1067                 if let RR::Txt(txt) = &verified_rrs.verified_rrs[0] {
1068                         assert_eq!(txt.name.as_str(), "asdf.wildcard_test.dnssec_proof_tests.bitcoin.ninja.");
1069                         assert_eq!(txt.data, b"wildcard_test");
1070                 } else { panic!(); }
1071                 if let RR::CName(cname) = &verified_rrs.verified_rrs[1] {
1072                         assert_eq!(cname.name.as_str(), "asdf.cname_wildcard_test.dnssec_proof_tests.bitcoin.ninja.");
1073                         assert_eq!(cname.canonical_name.as_str(), "cname.wildcard_test.dnssec_proof_tests.bitcoin.ninja.");
1074                 } else { panic!(); }
1075
1076                 let filtered_rrs =
1077                         verified_rrs.resolve_name(&"asdf.wildcard_test.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap());
1078                 assert_eq!(filtered_rrs.len(), 1);
1079                 if let RR::Txt(txt) = &filtered_rrs[0] {
1080                         assert_eq!(txt.name.as_str(), "asdf.wildcard_test.dnssec_proof_tests.bitcoin.ninja.");
1081                         assert_eq!(txt.data, b"wildcard_test");
1082                 } else { panic!(); }
1083         }
1084
1085         #[test]
1086         fn check_simple_nsec_zone_proof() {
1087                 let mut rr_stream = Vec::new();
1088                 for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1089                 for rr in ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1090                 for rr in bitcoin_ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1091                 for rr in bitcoin_ninja_nsec_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1092                 let (txt, txt_rrsig) = bitcoin_ninja_nsec_record();
1093                 for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1094
1095                 let mut rrs = parse_rr_stream(&rr_stream).unwrap();
1096                 rrs.shuffle(&mut rand::rngs::OsRng);
1097                 let verified_rrs = verify_rr_stream(&rrs).unwrap();
1098                 let filtered_rrs =
1099                         verified_rrs.resolve_name(&"a.nsec_tests.dnssec_proof_tests.bitcoin.ninja.".try_into().unwrap());
1100                 assert_eq!(filtered_rrs.len(), 1);
1101                 if let RR::Txt(txt) = &filtered_rrs[0] {
1102                         assert_eq!(txt.name.as_str(), "a.nsec_tests.dnssec_proof_tests.bitcoin.ninja.");
1103                         assert_eq!(txt.data, b"txt_a");
1104                 } else { panic!(); }
1105         }
1106
1107         #[test]
1108         fn check_nsec_wildcard_proof() {
1109                 let check_proof = |pfx: &str, post_override: bool| -> Result<(), ()> {
1110                         let mut rr_stream = Vec::new();
1111                         for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1112                         for rr in ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1113                         for rr in bitcoin_ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1114                         for rr in bitcoin_ninja_nsec_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1115                         let (txt, txt_rrsig, nsec, nsec_rrsig) = if post_override {
1116                                 bitcoin_ninja_nsec_post_override_wildcard_record(pfx)
1117                         } else {
1118                                 bitcoin_ninja_nsec_wildcard_record(pfx)
1119                         };
1120                         for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1121                         for rr in [RR::NSec(nsec), RR::RRSig(nsec_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
1122
1123                         let mut rrs = parse_rr_stream(&rr_stream).unwrap();
1124                         rrs.shuffle(&mut rand::rngs::OsRng);
1125                         // If the post_override flag is wrong (or the pfx is override), this will fail. No
1126                         // other calls in this lambda should fail.
1127                         let verified_rrs = verify_rr_stream(&rrs).map_err(|_| ())?;
1128                         let name: Name =
1129                                 (pfx.to_owned() + ".wildcard_test.nsec_tests.dnssec_proof_tests.bitcoin.ninja.").try_into().unwrap();
1130                         let filtered_rrs = verified_rrs.resolve_name(&name);
1131                         assert_eq!(filtered_rrs.len(), 1);
1132                         if let RR::Txt(txt) = &filtered_rrs[0] {
1133                                 assert_eq!(txt.name, name);
1134                                 assert_eq!(txt.data, b"wildcard_test");
1135                         } else { panic!(); }
1136                         Ok(())
1137                 };
1138                 // Records up to override will only work with the pre-override NSEC, and afterwards with
1139                 // the post-override NSEC. The literal override will always fail.
1140                 check_proof("a", false).unwrap();
1141                 check_proof("a", true).unwrap_err();
1142                 check_proof("a.b", false).unwrap();
1143                 check_proof("a.b", true).unwrap_err();
1144                 check_proof("o", false).unwrap();
1145                 check_proof("o", true).unwrap_err();
1146                 check_proof("a.o", false).unwrap();
1147                 check_proof("a.o", true).unwrap_err();
1148                 check_proof("override", false).unwrap_err();
1149                 check_proof("override", true).unwrap_err();
1150                 // Subdomains of override are also overridden by the override TXT entry and cannot use the
1151                 // wildcard record.
1152                 check_proof("b.override", false).unwrap_err();
1153                 check_proof("b.override", true).unwrap_err();
1154                 check_proof("z", false).unwrap_err();
1155                 check_proof("z", true).unwrap_err();
1156                 check_proof("a.z", false).unwrap_err();
1157                 check_proof("a.z", true).unwrap_err();
1158         }
1159
1160         #[test]
1161         fn check_txt_sort_order() {
1162                 let mut rr_stream = Vec::new();
1163                 for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1164                 for rr in ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1165                 for rr in bitcoin_ninja_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
1166                 let (mut txts, rrsig) = bitcoin_ninja_txt_sort_edge_cases_records();
1167                 write_rr(&rrsig, 1, &mut rr_stream);
1168                 for txt in txts.iter() { write_rr(txt, 1, &mut rr_stream); }
1169
1170                 let mut rrs = parse_rr_stream(&rr_stream).unwrap();
1171                 rrs.shuffle(&mut rand::rngs::OsRng);
1172                 let verified_rrs = verify_rr_stream(&rrs).unwrap();
1173                 let mut verified_txts = verified_rrs.verified_rrs
1174                         .iter().map(|rr| if let RR::Txt(txt) = rr { txt.clone() } else { panic!(); })
1175                         .collect::<Vec<_>>();
1176                 verified_txts.sort();
1177                 txts.sort();
1178                 assert_eq!(verified_txts, txts);
1179         }
1180
1181         #[test]
1182         fn rfc9102_parse_test() {
1183                 // Note that this is the `AuthenticationChain` field only, and ignores the
1184                 // `ExtSupportLifetime` field (stripping the top two 0 bytes from the front).
1185 let rfc9102_test_vector = Vec::from_hex("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").unwrap();
1186
1187                 let mut rrs = parse_rr_stream(&rfc9102_test_vector).unwrap();
1188                 rrs.shuffle(&mut rand::rngs::OsRng);
1189                 let verified_rrs = verify_rr_stream(&rrs).unwrap();
1190                 assert_eq!(verified_rrs.verified_rrs.len(), 1);
1191                 if let RR::TLSA(tlsa) = &verified_rrs.verified_rrs[0] {
1192                         assert_eq!(tlsa.cert_usage, 3);
1193                         assert_eq!(tlsa.selector, 1);
1194                         assert_eq!(tlsa.data_ty, 1);
1195                         assert_eq!(tlsa.data, Vec::from_hex("8bd1da95272f7fa4ffb24137fc0ed03aae67e5c4d8b3c50734e1050a7920b922").unwrap());
1196                 } else { panic!(); }
1197         }
1198 }