From: Jeffrey Czyz Date: Wed, 14 Aug 2024 20:33:28 +0000 (-0500) Subject: Rename InvoiceRequest::payer_id X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=dd8f744257d9a702e57a094e0d05b53ceb8dde48;p=rust-lightning Rename InvoiceRequest::payer_id For consistency with Offer::issuer_signing_pubkey, rename InvoiceRequest::payer_id to use "signing_pubkey" instead of "id". --- diff --git a/fuzz/src/invoice_request_deser.rs b/fuzz/src/invoice_request_deser.rs index f93199cf9..fb5122ec2 100644 --- a/fuzz/src/invoice_request_deser.rs +++ b/fuzz/src/invoice_request_deser.rs @@ -85,7 +85,7 @@ fn build_response( let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: OfferId([42; 32]), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: invoice_request.quantity(), payer_note_truncated: invoice_request .payer_note() diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs index 33a56a4f9..77a812343 100644 --- a/lightning/src/ln/channelmanager.rs +++ b/lightning/src/ln/channelmanager.rs @@ -65,7 +65,7 @@ use crate::ln::outbound_payment::{OutboundPayments, PaymentAttempts, PendingOutb use crate::ln::wire::Encode; use crate::offers::invoice::{Bolt12Invoice, DEFAULT_RELATIVE_EXPIRY, DerivedSigningPubkey, ExplicitSigningPubkey, InvoiceBuilder, UnsignedBolt12Invoice}; use crate::offers::invoice_error::InvoiceError; -use crate::offers::invoice_request::{DerivedPayerId, InvoiceRequest, InvoiceRequestBuilder}; +use crate::offers::invoice_request::{DerivedPayerSigningPubkey, InvoiceRequest, InvoiceRequestBuilder}; use crate::offers::nonce::Nonce; use crate::offers::offer::{Offer, OfferBuilder}; use crate::offers::parse::Bolt12SemanticError; @@ -9226,8 +9226,8 @@ where let secp_ctx = &self.secp_ctx; let nonce = Nonce::from_entropy_source(entropy); - let builder: InvoiceRequestBuilder = offer - .request_invoice_deriving_payer_id(expanded_key, nonce, secp_ctx, payment_id)? + let builder: InvoiceRequestBuilder = offer + .request_invoice_deriving_signing_pubkey(expanded_key, nonce, secp_ctx, payment_id)? .into(); let builder = builder.chain_hash(self.chain_hash)?; diff --git a/lightning/src/ln/offers_tests.rs b/lightning/src/ln/offers_tests.rs index a8124aab2..3a04befe7 100644 --- a/lightning/src/ln/offers_tests.rs +++ b/lightning/src/ln/offers_tests.rs @@ -566,13 +566,13 @@ fn creates_and_pays_for_offer_using_two_hop_blinded_path() { let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id(), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: None, payer_note_truncated: None, }, }); assert_eq!(invoice_request.amount_msats(), None); - assert_ne!(invoice_request.payer_id(), david_id); + assert_ne!(invoice_request.payer_signing_pubkey(), david_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(charlie_id)); let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); @@ -726,13 +726,13 @@ fn creates_and_pays_for_offer_using_one_hop_blinded_path() { let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id(), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: None, payer_note_truncated: None, }, }); assert_eq!(invoice_request.amount_msats(), None); - assert_ne!(invoice_request.payer_id(), bob_id); + assert_ne!(invoice_request.payer_signing_pubkey(), bob_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(bob_id)); let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); @@ -846,7 +846,7 @@ fn pays_for_offer_without_blinded_paths() { let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id(), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: None, payer_note_truncated: None, }, @@ -1112,13 +1112,13 @@ fn creates_and_pays_for_offer_with_retry() { let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id(), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: None, payer_note_truncated: None, }, }); assert_eq!(invoice_request.amount_msats(), None); - assert_ne!(invoice_request.payer_id(), bob_id); + assert_ne!(invoice_request.payer_signing_pubkey(), bob_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(bob_id)); let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); bob.onion_messenger.handle_onion_message(alice_id, &onion_message); @@ -1176,7 +1176,7 @@ fn pays_bolt12_invoice_asynchronously() { let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id(), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: None, payer_note_truncated: None, }, @@ -1265,12 +1265,12 @@ fn creates_offer_with_blinded_path_using_unannounced_introduction_node() { let payment_context = PaymentContext::Bolt12Offer(Bolt12OfferContext { offer_id: offer.id(), invoice_request: InvoiceRequestFields { - payer_id: invoice_request.payer_id(), + payer_signing_pubkey: invoice_request.payer_signing_pubkey(), quantity: None, payer_note_truncated: None, }, }); - assert_ne!(invoice_request.payer_id(), bob_id); + assert_ne!(invoice_request.payer_signing_pubkey(), bob_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(alice_id)); let onion_message = alice.onion_messenger.next_onion_message_for_peer(bob_id).unwrap(); @@ -1411,7 +1411,7 @@ fn fails_authentication_when_handling_invoice_request() { let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message); assert_eq!(invoice_request.amount_msats(), None); - assert_ne!(invoice_request.payer_id(), david_id); + assert_ne!(invoice_request.payer_signing_pubkey(), david_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(charlie_id)); assert_eq!(alice.onion_messenger.next_onion_message_for_peer(charlie_id), None); @@ -1441,7 +1441,7 @@ fn fails_authentication_when_handling_invoice_request() { let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message); assert_eq!(invoice_request.amount_msats(), None); - assert_ne!(invoice_request.payer_id(), david_id); + assert_ne!(invoice_request.payer_signing_pubkey(), david_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(charlie_id)); assert_eq!(alice.onion_messenger.next_onion_message_for_peer(charlie_id), None); @@ -1543,7 +1543,7 @@ fn fails_authentication_when_handling_invoice_for_offer() { let (invoice_request, reply_path) = extract_invoice_request(alice, &onion_message); assert_eq!(invoice_request.amount_msats(), None); - assert_ne!(invoice_request.payer_id(), david_id); + assert_ne!(invoice_request.payer_signing_pubkey(), david_id); assert_eq!(reply_path.introduction_node(), &IntroductionNode::NodeId(charlie_id)); let onion_message = alice.onion_messenger.next_onion_message_for_peer(charlie_id).unwrap(); diff --git a/lightning/src/offers/invoice.rs b/lightning/src/offers/invoice.rs index fb660c480..a3b3a43cb 100644 --- a/lightning/src/offers/invoice.rs +++ b/lightning/src/offers/invoice.rs @@ -749,8 +749,8 @@ macro_rules! invoice_accessors { ($self: ident, $contents: expr) => { /// refund in case there are no [`message_paths`]. /// /// [`message_paths`]: Self::message_paths - pub fn payer_id(&$self) -> PublicKey { - $contents.payer_id() + pub fn payer_signing_pubkey(&$self) -> PublicKey { + $contents.payer_signing_pubkey() } /// A payer-provided note reflected back in the invoice. @@ -1017,10 +1017,10 @@ impl InvoiceContents { } } - fn payer_id(&self) -> PublicKey { + fn payer_signing_pubkey(&self) -> PublicKey { match self { - InvoiceContents::ForOffer { invoice_request, .. } => invoice_request.payer_id(), InvoiceContents::ForRefund { refund, .. } => refund.payer_id(), + InvoiceContents::ForOffer { invoice_request, .. } => invoice_request.payer_signing_pubkey(), } } @@ -1099,9 +1099,9 @@ impl InvoiceContents { }); let tlv_stream = offer_records.chain(invreq_records); - let payer_id = self.payer_id(); + let signing_pubkey = self.payer_signing_pubkey(); signer::verify_payer_metadata( - metadata.as_ref(), key, iv_bytes, payer_id, tlv_stream, secp_ctx, + metadata.as_ref(), key, iv_bytes, signing_pubkey, tlv_stream, secp_ctx, ) } @@ -1526,7 +1526,7 @@ mod tests { assert_eq!(unsigned_invoice.amount_msats(), 1000); assert_eq!(unsigned_invoice.invoice_request_features(), &InvoiceRequestFeatures::empty()); assert_eq!(unsigned_invoice.quantity(), None); - assert_eq!(unsigned_invoice.payer_id(), payer_pubkey()); + assert_eq!(unsigned_invoice.payer_signing_pubkey(), payer_pubkey()); assert_eq!(unsigned_invoice.payer_note(), None); assert_eq!(unsigned_invoice.payment_paths(), payment_paths.as_slice()); assert_eq!(unsigned_invoice.created_at(), now); @@ -1568,7 +1568,7 @@ mod tests { assert_eq!(invoice.amount_msats(), 1000); assert_eq!(invoice.invoice_request_features(), &InvoiceRequestFeatures::empty()); assert_eq!(invoice.quantity(), None); - assert_eq!(invoice.payer_id(), payer_pubkey()); + assert_eq!(invoice.payer_signing_pubkey(), payer_pubkey()); assert_eq!(invoice.payer_note(), None); assert_eq!(invoice.payment_paths(), payment_paths.as_slice()); assert_eq!(invoice.created_at(), now); @@ -1666,7 +1666,7 @@ mod tests { assert_eq!(invoice.amount_msats(), 1000); assert_eq!(invoice.invoice_request_features(), &InvoiceRequestFeatures::empty()); assert_eq!(invoice.quantity(), None); - assert_eq!(invoice.payer_id(), payer_pubkey()); + assert_eq!(invoice.payer_signing_pubkey(), payer_pubkey()); assert_eq!(invoice.payer_note(), None); assert_eq!(invoice.payment_paths(), payment_paths.as_slice()); assert_eq!(invoice.created_at(), now); diff --git a/lightning/src/offers/invoice_request.rs b/lightning/src/offers/invoice_request.rs index 6c48fbc6e..e1b40526c 100644 --- a/lightning/src/offers/invoice_request.rs +++ b/lightning/src/offers/invoice_request.rs @@ -36,8 +36,8 @@ //! let pubkey = PublicKey::from(keys); //! let mut buffer = Vec::new(); //! -//! # use lightning::offers::invoice_request::{ExplicitPayerId, InvoiceRequestBuilder}; -//! # >::from( +//! # use lightning::offers::invoice_request::{ExplicitPayerSigningPubkey, InvoiceRequestBuilder}; +//! # >::from( //! "lno1qcp4256ypq" //! .parse::()? //! .request_invoice(vec![42; 64], pubkey)? @@ -102,11 +102,11 @@ pub(super) const IV_BYTES: &[u8; IV_LEN] = b"LDK Invreq ~~~~~"; /// This is not exported to bindings users as builder patterns don't map outside of move semantics. /// /// [module-level documentation]: self -pub struct InvoiceRequestBuilder<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signing> { +pub struct InvoiceRequestBuilder<'a, 'b, P: PayerSigningPubkeyStrategy, T: secp256k1::Signing> { offer: &'a Offer, - invoice_request: InvoiceRequestContentsWithoutPayerId, - payer_id: Option, - payer_id_strategy: core::marker::PhantomData

, + invoice_request: InvoiceRequestContentsWithoutPayerSigningPubkey, + payer_signing_pubkey: Option, + payer_signing_pubkey_strategy: core::marker::PhantomData

, secp_ctx: Option<&'b Secp256k1>, } @@ -116,11 +116,11 @@ pub struct InvoiceRequestBuilder<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signi /// /// [module-level documentation]: self #[cfg(c_bindings)] -pub struct InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> { +pub struct InvoiceRequestWithExplicitPayerSigningPubkeyBuilder<'a, 'b> { offer: &'a Offer, - invoice_request: InvoiceRequestContentsWithoutPayerId, - payer_id: Option, - payer_id_strategy: core::marker::PhantomData, + invoice_request: InvoiceRequestContentsWithoutPayerSigningPubkey, + payer_signing_pubkey: Option, + payer_signing_pubkey_strategy: core::marker::PhantomData, secp_ctx: Option<&'b Secp256k1>, } @@ -130,47 +130,47 @@ pub struct InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> { /// /// [module-level documentation]: self #[cfg(c_bindings)] -pub struct InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b> { +pub struct InvoiceRequestWithDerivedPayerSigningPubkeyBuilder<'a, 'b> { offer: &'a Offer, - invoice_request: InvoiceRequestContentsWithoutPayerId, - payer_id: Option, - payer_id_strategy: core::marker::PhantomData, + invoice_request: InvoiceRequestContentsWithoutPayerSigningPubkey, + payer_signing_pubkey: Option, + payer_signing_pubkey_strategy: core::marker::PhantomData, secp_ctx: Option<&'b Secp256k1>, } -/// Indicates how [`InvoiceRequest::payer_id`] will be set. +/// Indicates how [`InvoiceRequest::payer_signing_pubkey`] will be set. /// /// This is not exported to bindings users as builder patterns don't map outside of move semantics. -pub trait PayerIdStrategy {} +pub trait PayerSigningPubkeyStrategy {} -/// [`InvoiceRequest::payer_id`] will be explicitly set. +/// [`InvoiceRequest::payer_signing_pubkey`] will be explicitly set. /// /// This is not exported to bindings users as builder patterns don't map outside of move semantics. -pub struct ExplicitPayerId {} +pub struct ExplicitPayerSigningPubkey {} -/// [`InvoiceRequest::payer_id`] will be derived. +/// [`InvoiceRequest::payer_signing_pubkey`] will be derived. /// /// This is not exported to bindings users as builder patterns don't map outside of move semantics. -pub struct DerivedPayerId {} +pub struct DerivedPayerSigningPubkey {} -impl PayerIdStrategy for ExplicitPayerId {} -impl PayerIdStrategy for DerivedPayerId {} +impl PayerSigningPubkeyStrategy for ExplicitPayerSigningPubkey {} +impl PayerSigningPubkeyStrategy for DerivedPayerSigningPubkey {} -macro_rules! invoice_request_explicit_payer_id_builder_methods { ($self: ident, $self_type: ty) => { +macro_rules! invoice_request_explicit_payer_signing_pubkey_builder_methods { ($self: ident, $self_type: ty) => { #[cfg_attr(c_bindings, allow(dead_code))] - pub(super) fn new(offer: &'a Offer, metadata: Vec, payer_id: PublicKey) -> Self { + pub(super) fn new(offer: &'a Offer, metadata: Vec, signing_pubkey: PublicKey) -> Self { Self { offer, invoice_request: Self::create_contents(offer, Metadata::Bytes(metadata)), - payer_id: Some(payer_id), - payer_id_strategy: core::marker::PhantomData, + payer_signing_pubkey: Some(signing_pubkey), + payer_signing_pubkey_strategy: core::marker::PhantomData, secp_ctx: None, } } #[cfg_attr(c_bindings, allow(dead_code))] pub(super) fn deriving_metadata( - offer: &'a Offer, payer_id: PublicKey, expanded_key: &ExpandedKey, nonce: Nonce, + offer: &'a Offer, signing_pubkey: PublicKey, expanded_key: &ExpandedKey, nonce: Nonce, payment_id: PaymentId, ) -> Self { let payment_id = Some(payment_id); @@ -179,8 +179,8 @@ macro_rules! invoice_request_explicit_payer_id_builder_methods { ($self: ident, Self { offer, invoice_request: Self::create_contents(offer, metadata), - payer_id: Some(payer_id), - payer_id_strategy: core::marker::PhantomData, + payer_signing_pubkey: Some(signing_pubkey), + payer_signing_pubkey_strategy: core::marker::PhantomData, secp_ctx: None, } } @@ -194,11 +194,11 @@ macro_rules! invoice_request_explicit_payer_id_builder_methods { ($self: ident, } } } -macro_rules! invoice_request_derived_payer_id_builder_methods { ( +macro_rules! invoice_request_derived_payer_signing_pubkey_builder_methods { ( $self: ident, $self_type: ty, $secp_context: ty ) => { #[cfg_attr(c_bindings, allow(dead_code))] - pub(super) fn deriving_payer_id( + pub(super) fn deriving_signing_pubkey( offer: &'a Offer, expanded_key: &ExpandedKey, nonce: Nonce, secp_ctx: &'b Secp256k1<$secp_context>, payment_id: PaymentId ) -> Self { @@ -208,8 +208,8 @@ macro_rules! invoice_request_derived_payer_id_builder_methods { ( Self { offer, invoice_request: Self::create_contents(offer, metadata), - payer_id: None, - payer_id_strategy: core::marker::PhantomData, + payer_signing_pubkey: None, + payer_signing_pubkey_strategy: core::marker::PhantomData, secp_ctx: Some(secp_ctx), } } @@ -236,9 +236,9 @@ macro_rules! invoice_request_builder_methods { ( $self: ident, $self_type: ty, $return_type: ty, $return_value: expr, $secp_context: ty $(, $self_mut: tt)? ) => { #[cfg_attr(c_bindings, allow(dead_code))] - fn create_contents(offer: &Offer, metadata: Metadata) -> InvoiceRequestContentsWithoutPayerId { + fn create_contents(offer: &Offer, metadata: Metadata) -> InvoiceRequestContentsWithoutPayerSigningPubkey { let offer = offer.contents.clone(); - InvoiceRequestContentsWithoutPayerId { + InvoiceRequestContentsWithoutPayerSigningPubkey { payer: PayerContents(metadata), offer, chain: None, amount_msats: None, features: InvoiceRequestFeatures::empty(), quantity: None, payer_note: None, } @@ -343,7 +343,7 @@ macro_rules! invoice_request_builder_methods { ( debug_assert!(tlv_stream.2.payer_id.is_none()); tlv_stream.0.metadata = None; if !metadata.derives_payer_keys() { - tlv_stream.2.payer_id = $self.payer_id.as_ref(); + tlv_stream.2.payer_id = $self.payer_signing_pubkey.as_ref(); } let (derived_metadata, derived_keys) = @@ -351,23 +351,23 @@ macro_rules! invoice_request_builder_methods { ( metadata = derived_metadata; keys = derived_keys; if let Some(keys) = keys { - debug_assert!($self.payer_id.is_none()); - $self.payer_id = Some(keys.public_key()); + debug_assert!($self.payer_signing_pubkey.is_none()); + $self.payer_signing_pubkey = Some(keys.public_key()); } $self.invoice_request.payer.0 = metadata; } debug_assert!($self.invoice_request.payer.0.as_bytes().is_some()); - debug_assert!($self.payer_id.is_some()); - let payer_id = $self.payer_id.unwrap(); + debug_assert!($self.payer_signing_pubkey.is_some()); + let payer_signing_pubkey = $self.payer_signing_pubkey.unwrap(); let invoice_request = InvoiceRequestContents { #[cfg(not(c_bindings))] inner: $self.invoice_request, #[cfg(c_bindings)] inner: $self.invoice_request.clone(), - payer_id, + payer_signing_pubkey, }; let unsigned_invoice_request = UnsignedInvoiceRequest::new($self.offer, invoice_request); @@ -410,15 +410,15 @@ macro_rules! invoice_request_builder_test_methods { ( } } } -impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, ExplicitPayerId, T> { - invoice_request_explicit_payer_id_builder_methods!(self, Self); +impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, ExplicitPayerSigningPubkey, T> { + invoice_request_explicit_payer_signing_pubkey_builder_methods!(self, Self); } -impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, DerivedPayerId, T> { - invoice_request_derived_payer_id_builder_methods!(self, Self, T); +impl<'a, 'b, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, DerivedPayerSigningPubkey, T> { + invoice_request_derived_payer_signing_pubkey_builder_methods!(self, Self, T); } -impl<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, P, T> { +impl<'a, 'b, P: PayerSigningPubkeyStrategy, T: secp256k1::Signing> InvoiceRequestBuilder<'a, 'b, P, T> { invoice_request_builder_methods!(self, Self, Self, self, T, mut); #[cfg(test)] @@ -426,55 +426,55 @@ impl<'a, 'b, P: PayerIdStrategy, T: secp256k1::Signing> InvoiceRequestBuilder<'a } #[cfg(all(c_bindings, not(test)))] -impl<'a, 'b> InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> { - invoice_request_explicit_payer_id_builder_methods!(self, &mut Self); +impl<'a, 'b> InvoiceRequestWithExplicitPayerSigningPubkeyBuilder<'a, 'b> { + invoice_request_explicit_payer_signing_pubkey_builder_methods!(self, &mut Self); invoice_request_builder_methods!(self, &mut Self, (), (), secp256k1::All); } #[cfg(all(c_bindings, test))] -impl<'a, 'b> InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b> { - invoice_request_explicit_payer_id_builder_methods!(self, &mut Self); +impl<'a, 'b> InvoiceRequestWithExplicitPayerSigningPubkeyBuilder<'a, 'b> { + invoice_request_explicit_payer_signing_pubkey_builder_methods!(self, &mut Self); invoice_request_builder_methods!(self, &mut Self, &mut Self, self, secp256k1::All); invoice_request_builder_test_methods!(self, &mut Self, &mut Self, self); } #[cfg(all(c_bindings, not(test)))] -impl<'a, 'b> InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b> { - invoice_request_derived_payer_id_builder_methods!(self, &mut Self, secp256k1::All); +impl<'a, 'b> InvoiceRequestWithDerivedPayerSigningPubkeyBuilder<'a, 'b> { + invoice_request_derived_payer_signing_pubkey_builder_methods!(self, &mut Self, secp256k1::All); invoice_request_builder_methods!(self, &mut Self, (), (), secp256k1::All); } #[cfg(all(c_bindings, test))] -impl<'a, 'b> InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b> { - invoice_request_derived_payer_id_builder_methods!(self, &mut Self, secp256k1::All); +impl<'a, 'b> InvoiceRequestWithDerivedPayerSigningPubkeyBuilder<'a, 'b> { + invoice_request_derived_payer_signing_pubkey_builder_methods!(self, &mut Self, secp256k1::All); invoice_request_builder_methods!(self, &mut Self, &mut Self, self, secp256k1::All); invoice_request_builder_test_methods!(self, &mut Self, &mut Self, self); } #[cfg(c_bindings)] -impl<'a, 'b> From> -for InvoiceRequestBuilder<'a, 'b, ExplicitPayerId, secp256k1::All> { - fn from(builder: InvoiceRequestWithExplicitPayerIdBuilder<'a, 'b>) -> Self { - let InvoiceRequestWithExplicitPayerIdBuilder { - offer, invoice_request, payer_id, payer_id_strategy, secp_ctx, +impl<'a, 'b> From> +for InvoiceRequestBuilder<'a, 'b, ExplicitPayerSigningPubkey, secp256k1::All> { + fn from(builder: InvoiceRequestWithExplicitPayerSigningPubkeyBuilder<'a, 'b>) -> Self { + let InvoiceRequestWithExplicitPayerSigningPubkeyBuilder { + offer, invoice_request, payer_signing_pubkey, payer_signing_pubkey_strategy, secp_ctx, } = builder; Self { - offer, invoice_request, payer_id, payer_id_strategy, secp_ctx, + offer, invoice_request, payer_signing_pubkey, payer_signing_pubkey_strategy, secp_ctx, } } } #[cfg(c_bindings)] -impl<'a, 'b> From> -for InvoiceRequestBuilder<'a, 'b, DerivedPayerId, secp256k1::All> { - fn from(builder: InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b>) -> Self { - let InvoiceRequestWithDerivedPayerIdBuilder { - offer, invoice_request, payer_id, payer_id_strategy, secp_ctx, +impl<'a, 'b> From> +for InvoiceRequestBuilder<'a, 'b, DerivedPayerSigningPubkey, secp256k1::All> { + fn from(builder: InvoiceRequestWithDerivedPayerSigningPubkeyBuilder<'a, 'b>) -> Self { + let InvoiceRequestWithDerivedPayerSigningPubkeyBuilder { + offer, invoice_request, payer_signing_pubkey, payer_signing_pubkey_strategy, secp_ctx, } = builder; Self { - offer, invoice_request, payer_id, payer_id_strategy, secp_ctx, + offer, invoice_request, payer_signing_pubkey, payer_signing_pubkey_strategy, secp_ctx, } } } @@ -548,7 +548,7 @@ macro_rules! unsigned_invoice_request_sign_method { ( pub fn sign( $($self_mut)* $self: $self_type, sign: F ) -> Result { - let pubkey = $self.contents.payer_id; + let pubkey = $self.contents.payer_signing_pubkey; let signature = merkle::sign_message(sign, &$self, pubkey)?; // Append the signature TLV record to the bytes. @@ -630,13 +630,13 @@ pub struct VerifiedInvoiceRequest { #[derive(Clone, Debug)] #[cfg_attr(test, derive(PartialEq))] pub(super) struct InvoiceRequestContents { - pub(super) inner: InvoiceRequestContentsWithoutPayerId, - payer_id: PublicKey, + pub(super) inner: InvoiceRequestContentsWithoutPayerSigningPubkey, + payer_signing_pubkey: PublicKey, } #[derive(Clone, Debug)] #[cfg_attr(test, derive(PartialEq))] -pub(super) struct InvoiceRequestContentsWithoutPayerId { +pub(super) struct InvoiceRequestContentsWithoutPayerSigningPubkey { pub(super) payer: PayerContents, pub(super) offer: OfferContents, chain: Option, @@ -648,9 +648,9 @@ pub(super) struct InvoiceRequestContentsWithoutPayerId { macro_rules! invoice_request_accessors { ($self: ident, $contents: expr) => { /// An unpredictable series of bytes, typically containing information about the derivation of - /// [`payer_id`]. + /// [`payer_signing_pubkey`]. /// - /// [`payer_id`]: Self::payer_id + /// [`payer_signing_pubkey`]: Self::payer_signing_pubkey pub fn payer_metadata(&$self) -> &[u8] { $contents.metadata() } @@ -679,8 +679,8 @@ macro_rules! invoice_request_accessors { ($self: ident, $contents: expr) => { } /// A possibly transient pubkey used to sign the invoice request. - pub fn payer_id(&$self) -> PublicKey { - $contents.payer_id() + pub fn payer_signing_pubkey(&$self) -> PublicKey { + $contents.payer_signing_pubkey() } /// A payer-provided note which will be seen by the recipient and reflected back in the invoice @@ -856,9 +856,9 @@ impl InvoiceRequest { } impl InvoiceRequest { - /// Signature of the invoice request using [`payer_id`]. + /// Signature of the invoice request using [`payer_signing_pubkey`]. /// - /// [`payer_id`]: Self::payer_id + /// [`payer_signing_pubkey`]: Self::payer_signing_pubkey pub fn signature(&self) -> Signature { self.signature } @@ -939,14 +939,14 @@ impl VerifiedInvoiceRequest { pub(crate) fn fields(&self) -> InvoiceRequestFields { let InvoiceRequestContents { - payer_id, - inner: InvoiceRequestContentsWithoutPayerId { + payer_signing_pubkey, + inner: InvoiceRequestContentsWithoutPayerSigningPubkey { payer: _, offer: _, chain: _, amount_msats: _, features: _, quantity, payer_note }, } = &self.inner.contents; InvoiceRequestFields { - payer_id: *payer_id, + payer_signing_pubkey: *payer_signing_pubkey, quantity: *quantity, payer_note_truncated: payer_note.clone() .map(|mut s| { s.truncate(PAYER_NOTE_LIMIT); UntrustedString(s) }), @@ -975,8 +975,8 @@ impl InvoiceRequestContents { self.inner.quantity } - pub(super) fn payer_id(&self) -> PublicKey { - self.payer_id + pub(super) fn payer_signing_pubkey(&self) -> PublicKey { + self.payer_signing_pubkey } pub(super) fn payer_note(&self) -> Option { @@ -986,12 +986,12 @@ impl InvoiceRequestContents { pub(super) fn as_tlv_stream(&self) -> PartialInvoiceRequestTlvStreamRef { let (payer, offer, mut invoice_request) = self.inner.as_tlv_stream(); - invoice_request.payer_id = Some(&self.payer_id); + invoice_request.payer_id = Some(&self.payer_signing_pubkey); (payer, offer, invoice_request) } } -impl InvoiceRequestContentsWithoutPayerId { +impl InvoiceRequestContentsWithoutPayerSigningPubkey { pub(super) fn metadata(&self) -> &[u8] { self.payer.0.as_bytes().map(|bytes| bytes.as_slice()).unwrap_or(&[]) } @@ -1054,7 +1054,7 @@ impl Readable for InvoiceRequest { /// Valid type range for invoice_request TLV records. pub(super) const INVOICE_REQUEST_TYPES: core::ops::Range = 80..160; -/// TLV record type for [`InvoiceRequest::payer_id`] and [`Refund::payer_id`]. +/// TLV record type for [`InvoiceRequest::payer_signing_pubkey`] and [`Refund::payer_id`]. /// /// [`Refund::payer_id`]: crate::offers::refund::Refund::payer_id pub(super) const INVOICE_REQUEST_PAYER_ID_TYPE: u64 = 88; @@ -1139,7 +1139,7 @@ impl TryFrom> for InvoiceRequest { Some(signature) => signature, }; let message = TaggedHash::from_valid_tlv_stream_bytes(SIGNATURE_TAG, &bytes); - merkle::verify_signature(&signature, &message, contents.payer_id)?; + merkle::verify_signature(&signature, &message, contents.payer_signing_pubkey)?; Ok(InvoiceRequest { bytes, contents, signature }) } @@ -1176,8 +1176,8 @@ impl TryFrom for InvoiceRequestContents { let features = features.unwrap_or_else(InvoiceRequestFeatures::empty); - let payer_id = match payer_id { - None => return Err(Bolt12SemanticError::MissingPayerId), + let payer_signing_pubkey = match payer_id { + None => return Err(Bolt12SemanticError::MissingPayerSigningPubkey), Some(payer_id) => payer_id, }; @@ -1186,10 +1186,10 @@ impl TryFrom for InvoiceRequestContents { } Ok(InvoiceRequestContents { - inner: InvoiceRequestContentsWithoutPayerId { + inner: InvoiceRequestContentsWithoutPayerSigningPubkey { payer, offer, chain, amount_msats: amount, features, quantity, payer_note, }, - payer_id, + payer_signing_pubkey, }) } } @@ -1200,7 +1200,7 @@ impl TryFrom for InvoiceRequestContents { #[derive(Clone, Debug, Eq, PartialEq)] pub struct InvoiceRequestFields { /// A possibly transient pubkey used to sign the invoice request. - pub payer_id: PublicKey, + pub payer_signing_pubkey: PublicKey, /// The quantity of the offer's item conforming to [`Offer::is_valid_quantity`]. pub quantity: Option, @@ -1216,7 +1216,7 @@ pub const PAYER_NOTE_LIMIT: usize = 512; impl Writeable for InvoiceRequestFields { fn write(&self, writer: &mut W) -> Result<(), io::Error> { write_tlv_fields!(writer, { - (0, self.payer_id, required), + (0, self.payer_signing_pubkey, required), (2, self.quantity.map(|v| HighZeroBytesDroppedBigSize(v)), option), (4, self.payer_note_truncated.as_ref().map(|s| WithoutLength(&s.0)), option), }); @@ -1227,13 +1227,13 @@ impl Writeable for InvoiceRequestFields { impl Readable for InvoiceRequestFields { fn read(reader: &mut R) -> Result { _init_and_read_len_prefixed_tlv_fields!(reader, { - (0, payer_id, required), + (0, payer_signing_pubkey, required), (2, quantity, (option, encoding: (u64, HighZeroBytesDroppedBigSize))), (4, payer_note_truncated, (option, encoding: (String, WithoutLength))), }); Ok(InvoiceRequestFields { - payer_id: payer_id.0.unwrap(), + payer_signing_pubkey: payer_signing_pubkey.0.unwrap(), quantity, payer_note_truncated: payer_note_truncated.map(|s| UntrustedString(s)), }) @@ -1302,7 +1302,7 @@ mod tests { assert_eq!(unsigned_invoice_request.amount_msats(), None); assert_eq!(unsigned_invoice_request.invoice_request_features(), &InvoiceRequestFeatures::empty()); assert_eq!(unsigned_invoice_request.quantity(), None); - assert_eq!(unsigned_invoice_request.payer_id(), payer_pubkey()); + assert_eq!(unsigned_invoice_request.payer_signing_pubkey(), payer_pubkey()); assert_eq!(unsigned_invoice_request.payer_note(), None); match UnsignedInvoiceRequest::try_from(buffer) { @@ -1334,7 +1334,7 @@ mod tests { assert_eq!(invoice_request.amount_msats(), None); assert_eq!(invoice_request.invoice_request_features(), &InvoiceRequestFeatures::empty()); assert_eq!(invoice_request.quantity(), None); - assert_eq!(invoice_request.payer_id(), payer_pubkey()); + assert_eq!(invoice_request.payer_signing_pubkey(), payer_pubkey()); assert_eq!(invoice_request.payer_note(), None); let message = TaggedHash::from_valid_tlv_stream_bytes(SIGNATURE_TAG, &invoice_request.bytes); @@ -1405,7 +1405,7 @@ mod tests { #[test] fn builds_invoice_request_with_derived_metadata() { - let payer_id = payer_pubkey(); + let signing_pubkey = payer_pubkey(); let expanded_key = ExpandedKey::new(&KeyMaterial([42; 32])); let entropy = FixedEntropy {}; let nonce = Nonce::from_entropy_source(&entropy); @@ -1416,11 +1416,11 @@ mod tests { .amount_msats(1000) .build().unwrap(); let invoice_request = offer - .request_invoice_deriving_metadata(payer_id, &expanded_key, nonce, payment_id) + .request_invoice_deriving_metadata(signing_pubkey, &expanded_key, nonce, payment_id) .unwrap() .build().unwrap() .sign(payer_sign).unwrap(); - assert_eq!(invoice_request.payer_id(), payer_pubkey()); + assert_eq!(invoice_request.payer_signing_pubkey(), payer_pubkey()); let invoice = invoice_request.respond_with_no_std(payment_paths(), payment_hash(), now()) .unwrap() @@ -1482,7 +1482,7 @@ mod tests { } #[test] - fn builds_invoice_request_with_derived_payer_id() { + fn builds_invoice_request_with_derived_payer_signing_pubkey() { let expanded_key = ExpandedKey::new(&KeyMaterial([42; 32])); let entropy = FixedEntropy {}; let nonce = Nonce::from_entropy_source(&entropy); @@ -1493,7 +1493,7 @@ mod tests { .amount_msats(1000) .build().unwrap(); let invoice_request = offer - .request_invoice_deriving_payer_id(&expanded_key, nonce, &secp_ctx, payment_id) + .request_invoice_deriving_signing_pubkey(&expanded_key, nonce, &secp_ctx, payment_id) .unwrap() .build_and_sign() .unwrap(); @@ -2215,7 +2215,7 @@ mod tests { } #[test] - fn fails_parsing_invoice_request_without_payer_id() { + fn fails_parsing_invoice_request_without_payer_signing_pubkey() { let offer = OfferBuilder::new(recipient_pubkey()) .amount_msats(1000) .build().unwrap(); @@ -2229,7 +2229,7 @@ mod tests { match InvoiceRequest::try_from(buffer) { Ok(_) => panic!("expected error"), - Err(e) => assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingPayerId)), + Err(e) => assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingPayerSigningPubkey)), } } @@ -2349,7 +2349,7 @@ mod tests { assert_eq!( fields, InvoiceRequestFields { - payer_id: payer_pubkey(), + payer_signing_pubkey: payer_pubkey(), quantity: Some(1), payer_note_truncated: Some(UntrustedString("0".repeat(PAYER_NOTE_LIMIT))), } diff --git a/lightning/src/offers/offer.rs b/lightning/src/offers/offer.rs index 8c69cfb88..56dbb71ec 100644 --- a/lightning/src/offers/offer.rs +++ b/lightning/src/offers/offer.rs @@ -99,11 +99,11 @@ use crate::util::string::PrintableString; #[cfg(not(c_bindings))] use { - crate::offers::invoice_request::{DerivedPayerId, ExplicitPayerId, InvoiceRequestBuilder}, + crate::offers::invoice_request::{DerivedPayerSigningPubkey, ExplicitPayerSigningPubkey, InvoiceRequestBuilder}, }; #[cfg(c_bindings)] use { - crate::offers::invoice_request::{InvoiceRequestWithDerivedPayerIdBuilder, InvoiceRequestWithExplicitPayerIdBuilder}, + crate::offers::invoice_request::{InvoiceRequestWithDerivedPayerSigningPubkeyBuilder, InvoiceRequestWithExplicitPayerSigningPubkeyBuilder}, }; #[allow(unused_imports)] @@ -695,10 +695,10 @@ impl Offer { } } -macro_rules! request_invoice_derived_payer_id { ($self: ident, $builder: ty) => { +macro_rules! request_invoice_derived_signing_pubkey { ($self: ident, $builder: ty) => { /// Similar to [`Offer::request_invoice`] except it: - /// - derives the [`InvoiceRequest::payer_id`] such that a different key can be used for each - /// request, + /// - derives the [`InvoiceRequest::payer_signing_pubkey`] such that a different key can be used + /// for each request, /// - sets [`InvoiceRequest::payer_metadata`] when [`InvoiceRequestBuilder::build`] is called /// such that it can be used by [`Bolt12Invoice::verify_using_metadata`] to determine if the /// invoice was requested using a base [`ExpandedKey`] from which the payer id was derived, @@ -708,11 +708,11 @@ macro_rules! request_invoice_derived_payer_id { ($self: ident, $builder: ty) => /// /// Useful to protect the sender's privacy. /// - /// [`InvoiceRequest::payer_id`]: crate::offers::invoice_request::InvoiceRequest::payer_id + /// [`InvoiceRequest::payer_signing_pubkey`]: crate::offers::invoice_request::InvoiceRequest::payer_signing_pubkey /// [`InvoiceRequest::payer_metadata`]: crate::offers::invoice_request::InvoiceRequest::payer_metadata /// [`Bolt12Invoice::verify_using_metadata`]: crate::offers::invoice::Bolt12Invoice::verify_using_metadata /// [`ExpandedKey`]: crate::ln::inbound_payment::ExpandedKey - pub fn request_invoice_deriving_payer_id< + pub fn request_invoice_deriving_signing_pubkey< 'a, 'b, #[cfg(not(c_bindings))] T: secp256k1::Signing @@ -728,34 +728,35 @@ macro_rules! request_invoice_derived_payer_id { ($self: ident, $builder: ty) => return Err(Bolt12SemanticError::UnknownRequiredFeatures); } - Ok(<$builder>::deriving_payer_id($self, expanded_key, nonce, secp_ctx, payment_id)) + Ok(<$builder>::deriving_signing_pubkey($self, expanded_key, nonce, secp_ctx, payment_id)) } } } -macro_rules! request_invoice_explicit_payer_id { ($self: ident, $builder: ty) => { - /// Similar to [`Offer::request_invoice_deriving_payer_id`] except uses `payer_id` for the - /// [`InvoiceRequest::payer_id`] instead of deriving a different key for each request. +macro_rules! request_invoice_explicit_signing_pubkey { ($self: ident, $builder: ty) => { + /// Similar to [`Offer::request_invoice_deriving_signing_pubkey`] except uses `signing_pubkey` + /// for the [`InvoiceRequest::payer_signing_pubkey`] instead of deriving a different key for + /// each request. /// - /// Useful for recurring payments using the same `payer_id` with different invoices. + /// Useful for recurring payments using the same `signing_pubkey` with different invoices. /// - /// [`InvoiceRequest::payer_id`]: crate::offers::invoice_request::InvoiceRequest::payer_id + /// [`InvoiceRequest::payer_signing_pubkey`]: crate::offers::invoice_request::InvoiceRequest::payer_signing_pubkey pub fn request_invoice_deriving_metadata( - &$self, payer_id: PublicKey, expanded_key: &ExpandedKey, nonce: Nonce, + &$self, signing_pubkey: PublicKey, expanded_key: &ExpandedKey, nonce: Nonce, payment_id: PaymentId ) -> Result<$builder, Bolt12SemanticError> { if $self.offer_features().requires_unknown_bits() { return Err(Bolt12SemanticError::UnknownRequiredFeatures); } - Ok(<$builder>::deriving_metadata($self, payer_id, expanded_key, nonce, payment_id)) + Ok(<$builder>::deriving_metadata($self, signing_pubkey, expanded_key, nonce, payment_id)) } - /// Creates an [`InvoiceRequestBuilder`] for the offer with the given `metadata` and `payer_id`, - /// which will be reflected in the `Bolt12Invoice` response. + /// Creates an [`InvoiceRequestBuilder`] for the offer with the given `metadata` and + /// `signing_pubkey`, which will be reflected in the `Bolt12Invoice` response. /// - /// The `metadata` is useful for including information about the derivation of `payer_id` such - /// that invoice response handling can be stateless. Also serves as payer-provided entropy while - /// hashing in the signature calculation. + /// The `metadata` is useful for including information about the derivation of `signing_pubkey` + /// such that invoice response handling can be stateless. Also serves as payer-provided entropy + /// while hashing in the signature calculation. /// /// This should not leak any information such as by using a simple BIP-32 derivation path. /// Otherwise, payments may be correlated. @@ -764,26 +765,26 @@ macro_rules! request_invoice_explicit_payer_id { ($self: ident, $builder: ty) => /// /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest pub fn request_invoice( - &$self, metadata: Vec, payer_id: PublicKey + &$self, metadata: Vec, signing_pubkey: PublicKey ) -> Result<$builder, Bolt12SemanticError> { if $self.offer_features().requires_unknown_bits() { return Err(Bolt12SemanticError::UnknownRequiredFeatures); } - Ok(<$builder>::new($self, metadata, payer_id)) + Ok(<$builder>::new($self, metadata, signing_pubkey)) } } } #[cfg(not(c_bindings))] impl Offer { - request_invoice_derived_payer_id!(self, InvoiceRequestBuilder<'a, 'b, DerivedPayerId, T>); - request_invoice_explicit_payer_id!(self, InvoiceRequestBuilder); + request_invoice_derived_signing_pubkey!(self, InvoiceRequestBuilder<'a, 'b, DerivedPayerSigningPubkey, T>); + request_invoice_explicit_signing_pubkey!(self, InvoiceRequestBuilder); } #[cfg(c_bindings)] impl Offer { - request_invoice_derived_payer_id!(self, InvoiceRequestWithDerivedPayerIdBuilder<'a, 'b>); - request_invoice_explicit_payer_id!(self, InvoiceRequestWithExplicitPayerIdBuilder); + request_invoice_derived_signing_pubkey!(self, InvoiceRequestWithDerivedPayerSigningPubkeyBuilder<'a, 'b>); + request_invoice_explicit_signing_pubkey!(self, InvoiceRequestWithExplicitPayerSigningPubkeyBuilder); } #[cfg(test)] diff --git a/lightning/src/offers/parse.rs b/lightning/src/offers/parse.rs index d6661c3cb..fc5d83951 100644 --- a/lightning/src/offers/parse.rs +++ b/lightning/src/offers/parse.rs @@ -173,8 +173,8 @@ pub enum Bolt12SemanticError { UnexpectedMetadata, /// Payer metadata was expected but was missing. MissingPayerMetadata, - /// A payer id was expected but was missing. - MissingPayerId, + /// A payer signing pubkey was expected but was missing. + MissingPayerSigningPubkey, /// The payment id for a refund or request is already in use. DuplicatePaymentId, /// Blinded paths were expected but were missing. diff --git a/lightning/src/offers/payer.rs b/lightning/src/offers/payer.rs index 22180ce5f..7b941f15a 100644 --- a/lightning/src/offers/payer.rs +++ b/lightning/src/offers/payer.rs @@ -16,9 +16,9 @@ use crate::util::ser::WithoutLength; use crate::prelude::*; /// An unpredictable sequence of bytes typically containing information needed to derive -/// [`InvoiceRequest::payer_id`]. +/// [`InvoiceRequest::payer_signing_pubkey`]. /// -/// [`InvoiceRequest::payer_id`]: crate::offers::invoice_request::InvoiceRequest::payer_id +/// [`InvoiceRequest::payer_signing_pubkey`]: crate::offers::invoice_request::InvoiceRequest::payer_signing_pubkey #[derive(Clone, Debug)] #[cfg_attr(test, derive(PartialEq))] pub(super) struct PayerContents(pub Metadata); diff --git a/lightning/src/offers/refund.rs b/lightning/src/offers/refund.rs index cf5ed5528..e0ce377a5 100644 --- a/lightning/src/offers/refund.rs +++ b/lightning/src/offers/refund.rs @@ -902,7 +902,7 @@ impl TryFrom for RefundContents { let features = features.unwrap_or_else(InvoiceRequestFeatures::empty); let payer_id = match payer_id { - None => return Err(Bolt12SemanticError::MissingPayerId), + None => return Err(Bolt12SemanticError::MissingPayerSigningPubkey), Some(payer_id) => payer_id, }; @@ -1395,7 +1395,7 @@ mod tests { match Refund::try_from(tlv_stream.to_bytes()) { Ok(_) => panic!("expected error"), Err(e) => { - assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingPayerId)); + assert_eq!(e, Bolt12ParseError::InvalidSemantics(Bolt12SemanticError::MissingPayerSigningPubkey)); }, } } diff --git a/lightning/src/sign/mod.rs b/lightning/src/sign/mod.rs index 4b8a9e025..8ad34f2d6 100644 --- a/lightning/src/sign/mod.rs +++ b/lightning/src/sign/mod.rs @@ -878,7 +878,7 @@ pub trait NodeSigner { /// Implementors may check that the `invoice_request` is expected rather than blindly signing /// the tagged hash. An `Ok` result should sign `invoice_request.tagged_hash().as_digest()` with /// the node's signing key or an ephemeral key to preserve privacy, whichever is associated with - /// [`UnsignedInvoiceRequest::payer_id`]. + /// [`UnsignedInvoiceRequest::payer_signing_pubkey`]. /// /// [`TaggedHash`]: crate::offers::merkle::TaggedHash fn sign_bolt12_invoice_request(