--- /dev/null
+//! The DNS provides a single, global, hierarchical namespace with (when DNSSEC is used)
+//! cryptographic guarantees on all of its data.
+//!
+//! This makes it incredibly powerful for resolving human-readable names into arbitrary, secured
+//! data.
+//!
+//! Unlike TLS, this cryptographic security provides transferable proofs which can convince an
+//! offline device, using simple cryptographic primitives and a single root trusted key, of the
+//! validity of DNS data.
+//!
+//! This crate implements the creation and validation of such proofs, using the format from RFC
+//! 9102 to create transferable proofs of DNS entries.
+//!
+//! It is no-std (but requires `alloc`) and seeks to have minimal dependencies and a reasonably
+//! conservative MSRV policy, allowing it to be used in as many places as possible.
+
+#![allow(deprecated)] // XXX
+#![deny(missing_docs)]
+
+#![no_std]
+extern crate alloc;
+
+use alloc::vec::Vec;
+use alloc::vec;
+use alloc::string::String;
+use alloc::borrow::ToOwned;
+
+use ring::signature;
+
+/// Gets the trusted root anchors
+///
+/// These are available at <https://data.iana.org/root-anchors/root-anchors.xml>
+pub fn root_hints() -> Vec<DS> {
+ #[allow(unused_mut)]
+ let mut res = vec![DS {
+ name: ".".try_into().unwrap(), key_tag: 19036, alg: 8, digest_type: 2,
+ digest: hex_lit::hex!("49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5").to_vec(),
+ }, DS {
+ name: ".".try_into().unwrap(), key_tag: 20326, alg: 8, digest_type: 2,
+ digest: hex_lit::hex!("E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC683457104237C7F8EC8D").to_vec(),
+ }];
+ // In tests, add the trust anchor from RFC 9102
+ #[cfg(test)]
+ res.push(DS {
+ name: ".".try_into().unwrap(), key_tag: 47005, alg: 13, digest_type: 2,
+ digest: hex_lit::hex!("2eb6e9f2480126691594d649a5a613de3052e37861634641bb568746f2ffc4d4").to_vec(),
+ });
+ res
+}
+
+/// A valid domain name.
+///
+/// It must end with a ".", be no longer than 255 bytes, consist of only printable ASCII
+/// characters and each label may be no longer than 63 bytes.
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Name(String);
+impl core::ops::Deref for Name {
+ type Target = str;
+ fn deref(&self) -> &str { &self.0 }
+}
+impl TryFrom<String> for Name {
+ type Error = ();
+ fn try_from(s: String) -> Result<Name, ()> {
+ if s.is_empty() { return Err(()); }
+ if *s.as_bytes().last().unwrap_or(&0) != b"."[0] { return Err(()); }
+ if s.len() > 255 { return Err(()); }
+ if s.chars().any(|c| !c.is_ascii_graphic() && c != '.' && c != '-') { return Err(()); }
+ for label in s.split(".") {
+ if label.len() > 63 { return Err(()); }
+ }
+
+ Ok(Name(s))
+ }
+}
+impl TryFrom<&str> for Name {
+ type Error = ();
+ fn try_from(s: &str) -> Result<Name, ()> {
+ Self::try_from(s.to_owned())
+ }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+/// A supported Resource Record
+///
+/// Note that we only currently support a handful of RR types as needed to generate and validate
+/// TXT or TLSA record proofs.
+pub enum RR {
+ /// A text resource record
+ Txt(Txt),
+ /// A TLS Certificate Association resource record
+ TLSA(TLSA),
+ /// A DNS (Public) Key resource record
+ DnsKey(DnsKey),
+ /// A Delegated Signer resource record
+ DS(DS),
+ /// A Resource Record Signature record
+ RRSig(RRSig),
+}
+impl RR {
+ /// Gets the name this record refers to.
+ pub fn name(&self) -> &Name {
+ match self {
+ RR::Txt(rr) => &rr.name,
+ RR::TLSA(rr) => &rr.name,
+ RR::DnsKey(rr) => &rr.name,
+ RR::DS(rr) => &rr.name,
+ RR::RRSig(rr) => &rr.name,
+ }
+ }
+ fn ty(&self) -> u16 {
+ match self {
+ RR::Txt(_) => Txt::TYPE,
+ RR::TLSA(_) => TLSA::TYPE,
+ RR::DnsKey(_) => DnsKey::TYPE,
+ RR::DS(_) => DS::TYPE,
+ RR::RRSig(_) => RRSig::TYPE,
+ }
+ }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ match self {
+ RR::Txt(rr) => StaticRecord::write_u16_len_prefixed_data(rr, out),
+ RR::TLSA(rr) => StaticRecord::write_u16_len_prefixed_data(rr, out),
+ RR::DnsKey(rr) => StaticRecord::write_u16_len_prefixed_data(rr, out),
+ RR::DS(rr) => StaticRecord::write_u16_len_prefixed_data(rr, out),
+ RR::RRSig(rr) => StaticRecord::write_u16_len_prefixed_data(rr, out),
+ }
+ }
+}
+impl From<Txt> for RR { fn from(txt: Txt) -> RR { RR::Txt(txt) } }
+impl From<TLSA> for RR { fn from(tlsa: TLSA) -> RR { RR::TLSA(tlsa) } }
+impl From<DnsKey> for RR { fn from(dnskey: DnsKey) -> RR { RR::DnsKey(dnskey) } }
+impl From<DS> for RR { fn from(ds: DS) -> RR { RR::DS(ds) } }
+impl From<RRSig> for RR { fn from(rrsig: RRSig) -> RR { RR::RRSig(rrsig) } }
+
+trait StaticRecord : Ord {
+ // http://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-4
+ const TYPE: u16;
+ fn name(&self) -> &Name;
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>);
+}
+/// A trait describing a resource record (including the [`RR`] enum).
+pub trait Record : Ord + {
+ /// The resource record type, as maintained by IANA.
+ ///
+ /// Current assignments can be found at
+ /// <http://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-4>
+ fn ty(&self) -> u16;
+ /// The name this record is at.
+ fn name(&self) -> &Name;
+ /// Writes the data of this record, prefixed by a u16 length, to the given `Vec`.
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>);
+}
+impl<RR: StaticRecord> Record for RR {
+ fn ty(&self) -> u16 { RR::TYPE }
+ fn name(&self) -> &Name { RR::name(self) }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ RR::write_u16_len_prefixed_data(self, out)
+ }
+}
+impl Record for RR {
+ fn ty(&self) -> u16 { self.ty() }
+ fn name(&self) -> &Name { self.name() }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ self.write_u16_len_prefixed_data(out)
+ }
+}
+
+fn read_u8(inp: &mut &[u8]) -> Result<u8, ()> {
+ let res = *inp.get(0).ok_or(())?;
+ *inp = &inp[1..];
+ Ok(res)
+}
+fn read_u16(inp: &mut &[u8]) -> Result<u16, ()> {
+ if inp.len() < 2 { return Err(()); }
+ let mut bytes = [0; 2];
+ bytes.copy_from_slice(&inp[..2]);
+ *inp = &inp[2..];
+ Ok(u16::from_be_bytes(bytes))
+}
+fn read_u32(inp: &mut &[u8]) -> Result<u32, ()> {
+ if inp.len() < 4 { return Err(()); }
+ let mut bytes = [0; 4];
+ bytes.copy_from_slice(&inp[..4]);
+ *inp = &inp[4..];
+ Ok(u32::from_be_bytes(bytes))
+}
+
+fn read_name(inp: &mut &[u8]) -> Result<Name, ()> {
+ let mut name = String::with_capacity(1024);
+ loop {
+ let len = read_u8(inp)? as usize;
+ if len == 0 {
+ if name.is_empty() { name += "."; }
+ break;
+ }
+ if inp.len() <= len { return Err(()); }
+ name += core::str::from_utf8(&inp[..len]).map_err(|_| ())?;
+ name += ".";
+ *inp = &inp[len..];
+ if name.len() > 1024 { return Err(()); }
+ }
+ Ok(name.try_into()?)
+}
+
+trait Writer { fn write(&mut self, buf: &[u8]); }
+impl Writer for Vec<u8> { fn write(&mut self, buf: &[u8]) { self.extend_from_slice(buf); } }
+impl Writer for ring::digest::Context { fn write(&mut self, buf: &[u8]) { self.update(buf); } }
+fn write_name<W: Writer>(out: &mut W, name: &str) {
+ let canonical_name = name.to_ascii_lowercase();
+ if canonical_name == "." {
+ out.write(&[0]);
+ } else {
+ for label in canonical_name.split(".") {
+ out.write(&(label.len() as u8).to_be_bytes());
+ out.write(label.as_bytes());
+ }
+ }
+}
+fn name_len(name: &Name) -> u16 {
+ if name.0 == "." {
+ 1
+ } else {
+ let mut res = 0;
+ for label in name.split(".") {
+ res += 1 + label.len();
+ }
+ res as u16
+ }
+}
+
+fn parse_rr(inp: &mut &[u8]) -> Result<RR, ()> {
+ let name = read_name(inp)?;
+ let ty = read_u16(inp)?;
+ let class = read_u16(inp)?;
+ if class != 1 { return Err(()); } // We only support the INternet
+ let _ttl = read_u32(inp)?;
+ let data_len = read_u16(inp)? as usize;
+ if inp.len() < data_len { return Err(()); }
+ let mut data = &inp[..data_len];
+ *inp = &inp[data_len..];
+
+ match ty {
+ Txt::TYPE => {
+ let mut parsed_data = Vec::with_capacity(data_len - 1);
+ while !data.is_empty() {
+ let len = read_u8(&mut data)? as usize;
+ if data.len() < len { return Err(()); }
+ parsed_data.extend_from_slice(&data[..len]);
+ data = &data[len..];
+ }
+ Ok(RR::Txt(Txt { name, data: parsed_data }))
+ }
+ TLSA::TYPE => {
+ if data_len <= 3 { return Err(()); }
+ Ok(RR::TLSA(TLSA {
+ name, cert_usage: read_u8(&mut data)?, selector: read_u8(&mut data)?,
+ data_ty: read_u8(&mut data)?, data: data.to_vec(),
+ }))
+ },
+ DnsKey::TYPE => {
+ Ok(RR::DnsKey(DnsKey {
+ name, flags: read_u16(&mut data)?, protocol: read_u8(&mut data)?,
+ alg: read_u8(&mut data)?, pubkey: data.to_vec(),
+ }))
+ },
+ DS::TYPE => {
+ Ok(RR::DS(DS {
+ name, key_tag: read_u16(&mut data)?, alg: read_u8(&mut data)?,
+ digest_type: read_u8(&mut data)?, digest: data.to_vec(),
+ }))
+ },
+ RRSig::TYPE => {
+ Ok(RR::RRSig(RRSig {
+ name, ty: read_u16(&mut data)?, alg: read_u8(&mut data)?,
+ labels: read_u8(&mut data)?, orig_ttl: read_u32(&mut data)?,
+ expiration: read_u32(&mut data)?, inception: read_u32(&mut data)?,
+ key_tag: read_u16(&mut data)?, key_name: read_name(&mut data)?,
+ signature: data.to_vec(),
+ }))
+ },
+ _ => Err(()),
+ }
+}
+/// Parse a stream of [`RR`]s from the format described in [RFC 9102](https://www.rfc-editor.org/rfc/rfc9102.html).
+///
+/// Note that this is only the series of `AuthenticationChain` records, and does not read the
+/// `ExtSupportLifetime` field at the start of a `DnssecChainExtension`.
+pub fn parse_rr_stream(mut inp: &[u8]) -> Result<Vec<RR>, ()> {
+ let mut res = Vec::with_capacity(32);
+ while !inp.is_empty() {
+ res.push(parse_rr(&mut inp)?);
+ }
+ Ok(res)
+}
+
+/// Writes the given resource record in its wire encoding to the given `Vec`.
+///
+/// An [RFC 9102](https://www.rfc-editor.org/rfc/rfc9102.html) `AuthenticationChain` is simply a
+/// series of such records with no additional bytes in between.
+pub fn write_rr<RR: Record>(rr: &RR, ttl: u32, out: &mut Vec<u8>) {
+ write_name(out, rr.name());
+ out.extend_from_slice(&rr.ty().to_be_bytes());
+ out.extend_from_slice(&1u16.to_be_bytes()); // The INternet class
+ out.extend_from_slice(&ttl.to_be_bytes());
+ rr.write_u16_len_prefixed_data(out);
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)] // TODO: ord is wrong cause need to consider len first, maybe
+/// A text resource record, containing arbitrary text data
+pub struct Txt {
+ /// The name this record is at.
+ pub name: Name,
+ /// The text record itself.
+ ///
+ /// While this is generally UTF-8-valid, there is no specific requirement that it be, and thus
+ /// is an arbitrary series of bytes here.
+ data: Vec<u8>,
+}
+impl StaticRecord for Txt {
+ const TYPE: u16 = 16;
+ fn name(&self) -> &Name { &self.name }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ let len = (self.data.len() + self.data.len() / 255 + 1) as u16;
+ out.extend_from_slice(&len.to_be_bytes());
+
+ let mut data_write = &self.data[..];
+ out.extend_from_slice(&[data_write.len().try_into().unwrap_or(255)]);
+ while !data_write.is_empty() {
+ let split_pos = core::cmp::min(255, data_write.len());
+ out.extend_from_slice(&data_write[..split_pos]);
+ data_write = &data_write[split_pos..];
+ if !data_write.is_empty() {
+ out.extend_from_slice(&[data_write.len().try_into().unwrap_or(255)]);
+ }
+ }
+ }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+/// A TLS Certificate Association resource record containing information about the TLS certificate
+/// which should be expected when communicating with the host at the given name.
+///
+/// See <https://en.wikipedia.org/wiki/DNS-based_Authentication_of_Named_Entities#TLSA_RR> for more
+/// info.
+pub struct TLSA {
+ /// The name this record is at.
+ pub name: Name,
+ /// The type of constraint on the TLS certificate(s) used which should be enforced by this
+ /// record.
+ pub cert_usage: u8,
+ /// Whether to match on the full certificate, or only the public key.
+ pub selector: u8,
+ /// The type of data included which is used to match the TLS certificate(s).
+ pub data_ty: u8,
+ /// The certificate data or hash of the certificate data itself.
+ pub data: Vec<u8>,
+}
+impl StaticRecord for TLSA {
+ const TYPE: u16 = 52;
+ fn name(&self) -> &Name { &self.name }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ let len = 3 + self.data.len();
+ out.extend_from_slice(&(len as u16).to_be_bytes());
+ out.extend_from_slice(&[self.cert_usage, self.selector, self.data_ty]);
+ out.extend_from_slice(&self.data);
+ }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+/// A public key resource record which can be used to validate [`RRSig`]s.
+pub struct DnsKey {
+ /// The name this record is at.
+ pub name: Name,
+ /// Flags which constrain the usage of this public key.
+ pub flags: u16,
+ /// The protocol this key is used for (protocol `3` is DNSSEC).
+ pub protocol: u8,
+ /// The algorithm which this public key uses to sign data.
+ pub alg: u8,
+ /// The public key itself.
+ pub pubkey: Vec<u8>,
+}
+impl StaticRecord for DnsKey {
+ const TYPE: u16 = 48;
+ fn name(&self) -> &Name { &self.name }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ let len = 2 + 1 + 1 + self.pubkey.len();
+ out.extend_from_slice(&(len as u16).to_be_bytes());
+ out.extend_from_slice(&self.flags.to_be_bytes());
+ out.extend_from_slice(&self.protocol.to_be_bytes());
+ out.extend_from_slice(&self.alg.to_be_bytes());
+ out.extend_from_slice(&self.pubkey);
+ }
+}
+impl DnsKey {
+ /// A short (non-cryptographic) digest which can be used to refer to this [`DnsKey`].
+ pub fn key_tag(&self) -> u16 {
+ let mut res = u32::from(self.flags);
+ res += u32::from(self.protocol) << 8;
+ res += u32::from(self.alg);
+ for (idx, b) in self.pubkey.iter().enumerate() {
+ if idx % 2 == 0 {
+ res += u32::from(*b) << 8;
+ } else {
+ res += u32::from(*b);
+ }
+ }
+ res += (res >> 16) & 0xffff;
+ (res & 0xffff) as u16
+ }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+/// A Delegation Signer resource record which indicates that some alternative [`DnsKey`] can sign
+/// for records in the zone which matches [`DS::name`].
+pub struct DS {
+ /// The name this record is at.
+ ///
+ /// This is also the zone that a [`DnsKey`] which matches the [`Self::digest`] can sign for.
+ pub name: Name,
+ /// A short tag which describes the matching [`DnsKey`].
+ ///
+ /// This matches the [`DnsKey::key_tag`] for the [`DnsKey`] which is referred to by this
+ /// [`DS`].
+ pub key_tag: u16,
+ /// The algorithm which the [`DnsKey`] referred to by this [`DS`] uses.
+ ///
+ /// This matches the [`DnsKey::alg`] field in the referred-to [`DnsKey`].
+ pub alg: u8,
+ /// The type of digest used to hash the referred-to [`DnsKey`].
+ pub digest_type: u8,
+ /// The digest itself.
+ pub digest: Vec<u8>,
+}
+impl StaticRecord for DS {
+ const TYPE: u16 = 43;
+ fn name(&self) -> &Name { &self.name }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ let len = 2 + 1 + 1 + self.digest.len();
+ out.extend_from_slice(&(len as u16).to_be_bytes());
+ out.extend_from_slice(&self.key_tag.to_be_bytes());
+ out.extend_from_slice(&self.alg.to_be_bytes());
+ out.extend_from_slice(&self.digest_type.to_be_bytes());
+ out.extend_from_slice(&self.digest);
+ }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+/// A Resource Record (set) Signature resource record. This contains a signature over all the
+/// resources records of the given type at the given name.
+pub struct RRSig {
+ /// The name this record is at.
+ ///
+ /// This is also the name of any records which this signature is covering (ignoring wildcards).
+ pub name: Name,
+ /// The resource record type which this [`RRSig`] is signing.
+ ///
+ /// All resources records of this type at the same name as [`Self::name`] must be signed by
+ /// this [`RRSig`].
+ pub ty: u16,
+ /// The algorithm which is being used to sign.
+ ///
+ /// This must match the [`DnsKey::alg`] field in the [`DnsKey`] being used to sign.
+ pub alg: u8,
+ /// The number of labels in the name of the records that this signature is signing.
+ // TODO: Describe this better in terms of wildcards
+ pub labels: u8,
+ /// The TTL of the records which this [`RRSig`] is signing.
+ pub orig_ttl: u32,
+ /// The expiration (as a UNIX timestamp) of this signature.
+ pub expiration: u32,
+ /// The time (as a UNIX timestamp) at which this signature becomes valid.
+ pub inception: u32,
+ /// A short tag which describes the matching [`DnsKey`].
+ ///
+ /// This matches the [`DnsKey::key_tag`] for the [`DnsKey`] which created this signature.
+ pub key_tag: u16,
+ /// The [`DnsKey::name`] in the [`DnsKey`] which created this signature.
+ ///
+ /// This must be a parent of the [`Self::name`].
+ pub key_name: Name,
+ /// The signature itself.
+ pub signature: Vec<u8>,
+}
+impl StaticRecord for RRSig {
+ const TYPE: u16 = 46;
+ fn name(&self) -> &Name { &self.name }
+ fn write_u16_len_prefixed_data(&self, out: &mut Vec<u8>) {
+ let len = 2 + 1 + 1 + 4*3 + 2 + name_len(&self.key_name) + self.signature.len() as u16;
+ out.extend_from_slice(&len.to_be_bytes());
+ out.extend_from_slice(&self.ty.to_be_bytes());
+ out.extend_from_slice(&self.alg.to_be_bytes());
+ out.extend_from_slice(&self.labels.to_be_bytes());
+ out.extend_from_slice(&self.orig_ttl.to_be_bytes());
+ out.extend_from_slice(&self.expiration.to_be_bytes());
+ out.extend_from_slice(&self.inception.to_be_bytes());
+ out.extend_from_slice(&self.key_tag.to_be_bytes());
+ write_name(out, &self.key_name);
+ out.extend_from_slice(&self.signature);
+ }
+}
+
+#[derive(Debug, PartialEq)]
+/// An error when validating DNSSEC signatures or other data
+pub enum ValidationError {
+ /// An algorithm used in signing was not supported.
+ ///
+ /// In general DNS usage the resulting data should be used anyway, as we were able to verify
+ /// that a zone wished to use the unsupported algorithm.
+ ///
+ /// However, in cases where signing is mandatory, this can be treated as an error.
+ UnsupportedAlgorithm,
+ /// The provided data was invalid or signatures did not validate.
+ Invalid,
+}
+
+fn bytes_to_rsa_pk<'a>(pubkey: &'a [u8])
+-> Result<signature::RsaPublicKeyComponents<&'a [u8]>, ValidationError> {
+ if pubkey.len() <= 3 { return Err(ValidationError::Invalid); }
+
+ let mut pos = 0;
+ let exponent_length;
+ if pubkey[0] == 0 {
+ exponent_length = ((pubkey[1] as usize) << 8) | (pubkey[2] as usize);
+ pos += 3;
+ } else {
+ exponent_length = pubkey[0] as usize;
+ pos += 1;
+ }
+
+ if pubkey.len() <= pos + exponent_length { return Err(ValidationError::Invalid); }
+ Ok(signature::RsaPublicKeyComponents {
+ n: &pubkey[pos + exponent_length..],
+ e: &pubkey[pos..pos + exponent_length]
+ })
+}
+
+// TODO: return the validity period
+fn verify_rrsig<'a, RR: Record, Keys>(sig: &RRSig, dnskeys: Keys, mut records: Vec<&RR>)
+-> Result<(), ValidationError>
+where Keys: IntoIterator<Item = &'a DnsKey> {
+ for record in records.iter() {
+ if sig.ty != record.ty() { return Err(ValidationError::Invalid); }
+ }
+ for dnskey in dnskeys.into_iter() {
+ if dnskey.key_tag() == sig.key_tag {
+ // Protocol must be 3, otherwise its not DNSSEC
+ if dnskey.protocol != 3 { continue; }
+ // The ZONE flag must be set if we're going to validate RRs with this key.
+ if dnskey.flags & 0b1_0000_0000 == 0 { continue; }
+ if dnskey.alg != sig.alg { continue; }
+
+ // TODO: Check orig_ttl somehow?
+
+ let mut signed_data = Vec::with_capacity(2048);
+ signed_data.extend_from_slice(&sig.ty.to_be_bytes());
+ signed_data.extend_from_slice(&sig.alg.to_be_bytes());
+ signed_data.extend_from_slice(&sig.labels.to_be_bytes()); // Check this somehow?
+ signed_data.extend_from_slice(&sig.orig_ttl.to_be_bytes());
+ signed_data.extend_from_slice(&sig.expiration.to_be_bytes()); // Return this and inception
+ signed_data.extend_from_slice(&sig.inception.to_be_bytes());
+ signed_data.extend_from_slice(&sig.key_tag.to_be_bytes());
+ write_name(&mut signed_data, &sig.key_name);
+
+ records.sort();
+
+ for record in records.iter() {
+ // TODO: Handle wildcards
+ write_name(&mut signed_data, record.name());
+ signed_data.extend_from_slice(&record.ty().to_be_bytes());
+ signed_data.extend_from_slice(&1u16.to_be_bytes()); // The INternet class
+ signed_data.extend_from_slice(&sig.orig_ttl.to_be_bytes());
+ record.write_u16_len_prefixed_data(&mut signed_data);
+ }
+
+ match sig.alg {
+ 8|10 => {
+ let alg = if sig.alg == 8 {
+ &signature::RSA_PKCS1_1024_8192_SHA256_FOR_LEGACY_USE_ONLY
+ } else {
+ &signature::RSA_PKCS1_1024_8192_SHA512_FOR_LEGACY_USE_ONLY
+ };
+ bytes_to_rsa_pk(&dnskey.pubkey)?
+ .verify(alg, &signed_data, &sig.signature)
+ .map_err(|_| ValidationError::Invalid)?;
+ },
+ 13|14 => {
+ let alg = if sig.alg == 13 {
+ &signature::ECDSA_P256_SHA256_FIXED
+ } else {
+ &signature::ECDSA_P384_SHA384_FIXED
+ };
+
+ // Add 0x4 identifier to the ECDSA pubkey as expected by ring.
+ let mut key = Vec::with_capacity(dnskey.pubkey.len() + 1);
+ key.push(0x4);
+ key.extend_from_slice(&dnskey.pubkey);
+
+ signature::UnparsedPublicKey::new(alg, &key)
+ .verify(&signed_data, &sig.signature)
+ .map_err(|_| ValidationError::Invalid)?;
+ },
+ 15 => {
+ signature::UnparsedPublicKey::new(&signature::ED25519, &dnskey.pubkey)
+ .verify(&signed_data, &sig.signature)
+ .map_err(|_| ValidationError::Invalid)?;
+ },
+ _ => return Err(ValidationError::UnsupportedAlgorithm),
+ }
+
+ return Ok(());
+ }
+ }
+ Err(ValidationError::Invalid)
+}
+
+fn verify_dnskey_rrsig<'a, T, I>(sig: &RRSig, dses: T, records: Vec<&DnsKey>)
+-> Result<(), ValidationError>
+where T: IntoIterator<IntoIter = I>, I: Iterator<Item = &'a DS> + Clone {
+ let mut validated_dnskeys = Vec::with_capacity(records.len());
+ let dses = dses.into_iter();
+
+ let mut had_known_digest_type = false;
+ let mut had_ds = false;
+ for ds in dses.clone() {
+ had_ds = true;
+ if ds.digest_type == 2 || ds.digest_type == 4 {
+ had_known_digest_type = true;
+ break;
+ }
+ }
+ if !had_ds { return Err(ValidationError::Invalid); }
+ if !had_known_digest_type { return Err(ValidationError::UnsupportedAlgorithm); }
+
+ for dnskey in records.iter() {
+ for ds in dses.clone() {
+ if ds.digest_type != 2 && ds.digest_type != 4 { continue; }
+ if ds.alg != dnskey.alg { continue; }
+ if dnskey.key_tag() == ds.key_tag {
+ let alg = match ds.digest_type {
+ 2 => &ring::digest::SHA256,
+ 4 => &ring::digest::SHA384,
+ _ => continue,
+ };
+ let mut ctx = ring::digest::Context::new(alg);
+ write_name(&mut ctx, &dnskey.name);
+ ctx.update(&dnskey.flags.to_be_bytes());
+ ctx.update(&dnskey.protocol.to_be_bytes());
+ ctx.update(&dnskey.alg.to_be_bytes());
+ ctx.update(&dnskey.pubkey);
+ let hash = ctx.finish();
+ if hash.as_ref() == &ds.digest {
+ validated_dnskeys.push(*dnskey);
+ break;
+ }
+ }
+ }
+ }
+ verify_rrsig(sig, validated_dnskeys.iter().map(|k| *k), records)
+}
+
+/// Verifies the given set of resource records.
+///
+/// Given a set of arbitrary records, this attempts to validate DNSSEC data from the [`root_hints`]
+/// through to any supported non-DNSSEC record types.
+///
+/// All records which could be validated are returned.
+pub fn verify_rr_stream<'a>(inp: &'a [RR]) -> Result<Vec<&'a RR>, ValidationError> {
+ let mut zone = ".";
+ let mut res = Vec::new();
+ let mut next_ds_set = None;
+ 'next_zone: while zone == "." || next_ds_set.is_some() {
+ let mut found_unsupported_alg = false;
+ for rrsig in inp.iter()
+ .filter_map(|rr| if let RR::RRSig(sig) = rr { Some(sig) } else { None })
+ .filter(|rrsig| rrsig.name.0 == zone && rrsig.ty == DnsKey::TYPE)
+ {
+ let dnskeys = inp.iter()
+ .filter_map(|rr| if let RR::DnsKey(dnskey) = rr { Some(dnskey) } else { None })
+ .filter(move |dnskey| dnskey.name.0 == zone);
+ let dnskeys_verified = if zone == "." {
+ verify_dnskey_rrsig(rrsig, &root_hints(), dnskeys.clone().collect())
+ } else {
+ debug_assert!(next_ds_set.is_some());
+ if next_ds_set.is_none() { break 'next_zone; }
+ verify_dnskey_rrsig(rrsig, next_ds_set.clone().unwrap(), dnskeys.clone().collect())
+ };
+ if dnskeys_verified.is_ok() {
+ let mut last_validated_type = None;
+ next_ds_set = None;
+ for rrsig in inp.iter()
+ .filter_map(|rr| if let RR::RRSig(sig) = rr { Some(sig) } else { None })
+ .filter(move |rrsig| rrsig.key_name.0 == zone && rrsig.name.0 != zone)
+ {
+ if !rrsig.name.ends_with(zone) { return Err(ValidationError::Invalid); }
+ if last_validated_type == Some(rrsig.ty) {
+ // If we just validated all the RRs for this type, go ahead and skip it. We
+ // may end up double-validating some RR Sets if there's multiple RRSigs for
+ // the same sets interwoven with other RRSets, but that's okay.
+ continue;
+ }
+ let signed_records = inp.iter()
+ .filter(|rr| rr.name() == &rrsig.name && rr.ty() == rrsig.ty);
+ verify_rrsig(rrsig, dnskeys.clone(), signed_records.clone().collect())?;
+ match rrsig.ty {
+ // RRSigs shouldn't cover child `DnsKey`s or other `RRSig`s
+ RRSig::TYPE|DnsKey::TYPE => return Err(ValidationError::Invalid),
+ DS::TYPE => {
+ next_ds_set = Some(signed_records.filter_map(|rr|
+ if let RR::DS(ds) = rr { Some(ds) }
+ else { debug_assert!(false, "We already filtered by type"); None }));
+ zone = &rrsig.name;
+ },
+ _ => {
+ for record in signed_records { res.push(record); }
+ last_validated_type = Some(rrsig.ty);
+ },
+ }
+ }
+ if next_ds_set.is_none() { break 'next_zone; }
+ else { continue 'next_zone; }
+ } else if dnskeys_verified == Err(ValidationError::UnsupportedAlgorithm) {
+ // There may be redundant signatures by different keys, where one we don't supprt
+ // and another we do. Ignore ones we don't support, but if there are no more,
+ // return UnsupportedAlgorithm
+ found_unsupported_alg = true;
+ } else {
+ // We don't explicitly handle invalid signatures here, instead we move on to the
+ // next RRSig (if there is one) and return `Invalid` if no `RRSig`s match.
+ }
+ }
+ // No RRSigs were able to verify our DnsKey set
+ if found_unsupported_alg {
+ return Err(ValidationError::UnsupportedAlgorithm);
+ } else {
+ return Err(ValidationError::Invalid);
+ }
+ }
+ if res.is_empty() { Err(ValidationError::Invalid) }
+ else { Ok(res) }
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ use hex_conservative::FromHex;
+
+ fn root_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
+ let dnskeys = vec![DnsKey {
+ name: ".".try_into().unwrap(), flags: 256, protocol: 3, alg: 8,
+ pubkey: base64::decode("AwEAAentCcIEndLh2QSK+pHFq/PkKCwioxt75d7qNOUuTPMo0Fcte/NbwDPbocvbZ/eNb5RV/xQdapaJASQ/oDLsqzD0H1+JkHNuuKc2JLtpMxg4glSE4CnRXT2CnFTW5IwOREL+zeqZHy68OXy5ngW5KALbevRYRg/q2qFezRtCSQ0knmyPwgFsghVYLKwi116oxwEU5yZ6W7npWMxt5Z+Qs8diPNWrS5aXLgJtrWUGIIuFfuZwXYziGRP/z3o1EfMo9zZU19KLopkoLXX7Ls/diCXdSEdJXTtFA8w0/OKQviuJebfKscoElCTswukVZ1VX5gbaFEo2xWhHJ9Uo63wYaTk=").unwrap(),
+ }, DnsKey {
+ name: ".".try_into().unwrap(), flags: 257, protocol: 3, alg: 8,
+ pubkey: base64::decode("AwEAAaz/tAm8yTn4Mfeh5eyI96WSVexTBAvkMgJzkKTOiW1vkIbzxeF3+/4RgWOq7HrxRixHlFlExOLAJr5emLvN7SWXgnLh4+B5xQlNVz8Og8kvArMtNROxVQuCaSnIDdD5LKyWbRd2n9WGe2R8PzgCmr3EgVLrjyBxWezF0jLHwVN8efS3rCj/EWgvIWgb9tarpVUDK/b58Da+sqqls3eNbuv7pr+eoZG+SrDK6nWeL3c6H5Apxz7LjVc1uTIdsIXxuOLYA4/ilBmSVIzuDWfdRUfhHdY6+cn8HFRm+2hM8AnXGXws9555KrUB5qihylGa8subX2Nn6UwNR1AkUTV74bU=").unwrap(),
+ }];
+ let dnskey_rrsig = RRSig {
+ name: ".".try_into().unwrap(), ty: DnsKey::TYPE, alg: 8, labels: 0, orig_ttl: 172800,
+ expiration: 1708473600, inception: 1706659200, key_tag: 20326, key_name: ".".try_into().unwrap(),
+ signature: base64::decode("ZO8LbjtwAiVkkBzOnGbiI/3ilGUPmmJpagsLSBVbIZRG6o/8a+hUZpIPTvk5ERZ1rAW4x0YxKAU8qtaHQpKIp3qYA6u97DYytVD7RdtXKHmGYAvR6QbD5eVTkCw1Sz705rJxbwt6+YM5OBweSUAy5Glo6JSQPDQwRDwj/bV2fLRhJbvfsBgxqaXJA0SaE/ceyvK8gB2NIaguTJNrztr2TENrHxi86OKOuHYDHthOW0TFoPfr19qj/P2eEC6dYniTVovUwHT7e+Hqrb05dJF4mI4ZjaIb5mFf8i5RehT1aRlnb3CLiwJ01bEjrRBo3xUn5I3PkCnglHhx3EvkO73OzA==").unwrap(),
+ };
+ let root_hints = root_hints();
+ verify_dnskey_rrsig(&dnskey_rrsig, &root_hints, dnskeys.iter().collect()).unwrap();
+ let rrs = vec![dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
+ (dnskeys, rrs)
+ }
+
+ fn com_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
+ let root_dnskeys = root_dnskey().0;
+ let mut com_ds = vec![DS {
+ name: "com.".try_into().unwrap(), key_tag: 19718, alg: 13, digest_type: 2,
+ digest: Vec::from_hex("8ACBB0CD28F41250A80A491389424D341522D946B0DA0C0291F2D3D771D7805A").unwrap(),
+ }];
+ let ds_rrsig = RRSig {
+ name: "com.".try_into().unwrap(), ty: DS::TYPE, alg: 8, labels: 1, orig_ttl: 86400,
+ expiration: 1708189200, inception: 1707062400, key_tag: 30903, key_name: ".".try_into().unwrap(),
+ signature: base64::decode("vwMOBBwqRBdlmGZB+0FKfyMSignEtpYW9sD4TzPW2E+wdbF7O7epR5cmKmvcv0RUJdM0dGC/QmhCfgf/yqw1Xp7TpmPaYzaruW70hjGXZJO2nY3G6stUVe4S7lM2CzHL7nbbpaB5B+iSu6Ua9dZ+nyKrxfB7855HBLCLrHrkMGxWQiEPTallXXS8tEM1Y2XrsuzAQu2vZ2D2ClhFspFbPwwOdw+G6+NsZ8PnIfTkCj6DuKcgbdxjmGaYmw/6hVt9OU3kGCOBaJaEy4LrD8Kwzfu4S7axMwTKP4y4c5Y/E4k/mVAW0cuUtv549HaDfD2V0CvW1bDl6PqRkOiVsqM/lA==").unwrap(),
+ };
+ verify_rrsig(&ds_rrsig, &root_dnskeys, com_ds.iter().collect()).unwrap();
+ let dnskeys = vec![DnsKey {
+ name: "com.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
+ pubkey: base64::decode("5i9qjJgyH+9MBz7VO269/srLQB/xRRllyUoVq8oLBZshPe4CGzDSFGnXAM3L/QPzB9ULpJuuy7jcxmBZ5Ebo7A==").unwrap(),
+ }, DnsKey {
+ name: "com.".try_into().unwrap(), flags: 257, protocol: 3, alg: 13,
+ pubkey: base64::decode("tx8EZRAd2+K/DJRV0S+hbBzaRPS/G6JVNBitHzqpsGlz8huE61Ms9ANe6NSDLKJtiTBqfTJWDAywEp1FCsEINQ==").unwrap(),
+ }];
+ let dnskey_rrsig = RRSig {
+ name: "com.".try_into().unwrap(), ty: DnsKey::TYPE, alg: 13, labels: 1, orig_ttl: 86400,
+ expiration: 1707750155, inception: 1706453855, key_tag: 19718, key_name: "com.".try_into().unwrap(),
+ signature: base64::decode("ZFGChM7QfJt0QSqVWerWnG5pMjpL1pXyJAmuHe8dHI/olmaNCxm+mqNHv9i3AploFY6JoNtiHmeBiC6zuFj/ZQ==").unwrap(),
+ };
+ verify_dnskey_rrsig(&dnskey_rrsig, &com_ds, dnskeys.iter().collect()).unwrap();
+ let rrs = vec![com_ds.pop().unwrap().into(), ds_rrsig.into(),
+ dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
+ (dnskeys, rrs)
+ }
+
+ fn mattcorallo_dnskey() -> (Vec<DnsKey>, Vec<RR>) {
+ let com_dnskeys = com_dnskey().0;
+ let mut mattcorallo_ds = vec![DS {
+ name: "mattcorallo.com.".try_into().unwrap(), key_tag: 25630, alg: 13, digest_type: 2,
+ digest: Vec::from_hex("DC608CA62BE89B3B9DB1593F9A59930D24FBA79D486E19C88A7792711EC00735").unwrap(),
+ }];
+ let ds_rrsig = RRSig {
+ name: "mattcorallo.com.".try_into().unwrap(), ty: DS::TYPE, alg: 13, labels: 2, orig_ttl: 86400,
+ expiration: 1707631252, inception: 1707022252, key_tag: 4534, key_name: "com.".try_into().unwrap(),
+ signature: base64::decode("M7Fk+CjfLz6hRsY5iSuw5bwc2OqlS3XtKH8FDs7lcbhEiR63n+DzOF0I8L+3k06SXFnE89uuofQECzWmAyef6Q==").unwrap(),
+ };
+ verify_rrsig(&ds_rrsig, &com_dnskeys, mattcorallo_ds.iter().collect()).unwrap();
+ let dnskeys = vec![DnsKey {
+ name: "mattcorallo.com.".try_into().unwrap(), flags: 257, protocol: 3, alg: 13,
+ pubkey: base64::decode("8BP51Etiu4V6cHvGCYqwNqCip4pvHChjEgkgG4zpdDvO9YRcTGuV/p71hAUut2/qEdxqXfUOT/082BJ/Z089DA==").unwrap(),
+ }, DnsKey {
+ name: "mattcorallo.com.".try_into().unwrap(), flags: 256, protocol: 3, alg: 13,
+ pubkey: base64::decode("AhUlQ8qk7413R0m4zKfTDHb/FQRlKag+ncGXxNxT+qTzSZTb9E5IGjo9VCEp6+IMqqpkd4GrXpN9AzDvlcU9Ig==").unwrap(),
+ }];
+ let dnskey_rrsig = RRSig {
+ name: "mattcorallo.com.".try_into().unwrap(), ty: DnsKey::TYPE, alg: 13, labels: 2, orig_ttl: 604800,
+ expiration: 1708278650, inception: 1707063650, key_tag: 25630, key_name: "mattcorallo.com.".try_into().unwrap(),
+ signature: base64::decode("nyVDwG+la8d5dyWgB7m+H3BQwCvTWLQ/kAqNruMzdLmn9B3VC9u/rvM/ortEu0WPbA1FZWJbRKpF1Ohkj3ltNw==").unwrap(),
+ };
+ verify_dnskey_rrsig(&dnskey_rrsig, &mattcorallo_ds, dnskeys.iter().collect()).unwrap();
+ let rrs = vec![mattcorallo_ds.pop().unwrap().into(), ds_rrsig.into(),
+ dnskeys[0].clone().into(), dnskeys[1].clone().into(), dnskey_rrsig.into()];
+ (dnskeys, rrs)
+ }
+
+ fn mattcorallo_txt_record() -> (Txt, RRSig) {
+ let txt_resp = Txt {
+ name: "matt.user._bitcoin-payment.mattcorallo.com.".try_into().unwrap(),
+ data: "bitcoin:?b12=lno1qsgqmqvgm96frzdg8m0gc6nzeqffvzsqzrxqy32afmr3jn9ggkwg3egfwch2hy0l6jut6vfd8vpsc3h89l6u3dm4q2d6nuamav3w27xvdmv3lpgklhg7l5teypqz9l53hj7zvuaenh34xqsz2sa967yzqkylfu9xtcd5ymcmfp32h083e805y7jfd236w9afhavqqvl8uyma7x77yun4ehe9pnhu2gekjguexmxpqjcr2j822xr7q34p078gzslf9wpwz5y57alxu99s0z2ql0kfqvwhzycqq45ehh58xnfpuek80hw6spvwrvttjrrq9pphh0dpydh06qqspp5uq4gpyt6n9mwexde44qv7lstzzq60nr40ff38u27un6y53aypmx0p4qruk2tf9mjwqlhxak4znvna5y".to_owned().into_bytes(),
+ };
+ let txt_rrsig = RRSig {
+ name: "matt.user._bitcoin-payment.mattcorallo.com.".try_into().unwrap(),
+ ty: Txt::TYPE, alg: 13, labels: 5, orig_ttl: 3600, expiration: 1708123318,
+ inception: 1706908318, key_tag: 47959, key_name: "mattcorallo.com.".try_into().unwrap(),
+ signature: base64::decode("mgU6iwyMWO0w9nj2Gmt1+RmaIJIU3KO7DWVZiCD1bmU9e9zNefXCtnWOC2HtwjUsn/QYkWluvuSfYpBrt1IjpQ==").unwrap(),
+ };
+ (txt_resp, txt_rrsig)
+ }
+
+ #[test]
+ fn check_txt_record() {
+ let dnskeys = mattcorallo_dnskey().0;
+ let (txt, txt_rrsig) = mattcorallo_txt_record();
+ let txt_resp = [txt];
+ verify_rrsig(&txt_rrsig, &dnskeys, txt_resp.iter().collect()).unwrap();
+ }
+
+ #[test]
+ fn check_txt_proof() {
+ let mut rr_stream = Vec::new();
+ for rr in root_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
+ for rr in com_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
+ for rr in mattcorallo_dnskey().1 { write_rr(&rr, 1, &mut rr_stream); }
+ let (txt, txt_rrsig) = mattcorallo_txt_record();
+ for rr in [RR::Txt(txt), RR::RRSig(txt_rrsig)] { write_rr(&rr, 1, &mut rr_stream); }
+
+ let rrs = parse_rr_stream(&rr_stream).unwrap();
+ let verified_rrs = verify_rr_stream(&rrs).unwrap();
+ assert_eq!(verified_rrs.len(), 1);
+ if let RR::Txt(txt) = &verified_rrs[0] {
+ assert_eq!(txt.name.0, "matt.user._bitcoin-payment.mattcorallo.com.");
+ assert_eq!(txt.data, b"bitcoin:?b12=lno1qsgqmqvgm96frzdg8m0gc6nzeqffvzsqzrxqy32afmr3jn9ggkwg3egfwch2hy0l6jut6vfd8vpsc3h89l6u3dm4q2d6nuamav3w27xvdmv3lpgklhg7l5teypqz9l53hj7zvuaenh34xqsz2sa967yzqkylfu9xtcd5ymcmfp32h083e805y7jfd236w9afhavqqvl8uyma7x77yun4ehe9pnhu2gekjguexmxpqjcr2j822xr7q34p078gzslf9wpwz5y57alxu99s0z2ql0kfqvwhzycqq45ehh58xnfpuek80hw6spvwrvttjrrq9pphh0dpydh06qqspp5uq4gpyt6n9mwexde44qv7lstzzq60nr40ff38u27un6y53aypmx0p4qruk2tf9mjwqlhxak4znvna5y");
+ } else { panic!(); }
+ }
+
+ #[test]
+ fn rfc9102_parse_test() {
+ // Note that this is the `AuthenticationChain` field only, and ignores the
+ // `ExtSupportLifetime` field (stripping the top two 0 bytes from the front).
+let rfc9102_test_vector = Vec::from_hex("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").unwrap();
+
+ let rrs = parse_rr_stream(&rfc9102_test_vector).unwrap();
+ let verified_rrs = verify_rr_stream(&rrs).unwrap();
+ assert_eq!(verified_rrs.len(), 1);
+ if let RR::TLSA(tlsa) = &verified_rrs[0] {
+ assert_eq!(tlsa.cert_usage, 3);
+ assert_eq!(tlsa.selector, 1);
+ assert_eq!(tlsa.data_ty, 1);
+ assert_eq!(tlsa.data, Vec::from_hex("8bd1da95272f7fa4ffb24137fc0ed03aae67e5c4d8b3c50734e1050a7920b922").unwrap());
+ } else { panic!(); }
+ }
+}
projects / dnssec-prover / commitdiff