From 4ef2e9ae685875c433ad2cdce6358a5c70c00fbd Mon Sep 17 00:00:00 2001 From: Simon Date: Mon, 21 May 2018 14:46:31 -0700 Subject: [PATCH 1/4] Add ffi and computation for Sapling note commitment. --- include/librustzcash.h | 21 ++++++++++++ src/rustzcash.rs | 76 ++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 95 insertions(+), 2 deletions(-) diff --git a/include/librustzcash.h b/include/librustzcash.h index b6e1184..876e727 100644 --- a/include/librustzcash.h +++ b/include/librustzcash.h @@ -102,6 +102,27 @@ extern "C" { /// `librustzcash_sapling_verification_ctx_init`. void librustzcash_sapling_verification_ctx_free(void *); + /// Compute a Sapling commitment. + /// + /// The `diversifier` parameter must be 11 bytes in length. + /// The `pk_d` and `r` parameters must be of length 32. + /// The result is also of length 32 and placed in `result`. + /// Returns false if the diversifier or pk_d is not valid + bool librustzcash_sapling_compute_cm( + const unsigned char *diversifier, + const unsigned char *pk_d, + const uint64_t value, + const unsigned char *r, + unsigned char *result + ); + + /// Generate uniform Sapling commitment randomness `r`. + /// The result is of length 32. + /// Returns false if there was an error. + bool librustzcash_sapling_generate_commitment_randomness( + unsigned char *result + ); + /// Sprout JoinSplit proof generation. void librustzcash_sprout_prove( unsigned char *proof_out, diff --git a/src/rustzcash.rs b/src/rustzcash.rs index 08fe1f3..f43bfb1 100644 --- a/src/rustzcash.rs +++ b/src/rustzcash.rs @@ -13,7 +13,7 @@ use pairing::{BitIterator, Field, PrimeField, PrimeFieldRepr, bls12_381::{Bls12, use sapling_crypto::{circuit::multipack, constants::CRH_IVK_PERSONALIZATION, jubjub::{edwards, FixedGenerators, JubjubBls12, JubjubEngine, JubjubParams, - PrimeOrder, ToUniform, Unknown, fs::FsRepr}, + PrimeOrder, ToUniform, Unknown, fs::{Fs, FsRepr}}, pedersen_hash::{pedersen_hash, Personalization}, redjubjub::{self, Signature}}; use sapling_crypto::circuit::sprout::{self, TREE_DEPTH as SPROUT_TREE_DEPTH}; @@ -25,7 +25,7 @@ use blake2_rfc::blake2s::Blake2s; use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt}; -use rand::OsRng; +use rand::{OsRng, Rng}; use std::io::BufReader; use libc::{c_char, c_uchar, size_t, int64_t, uint32_t, uint64_t}; @@ -301,6 +301,78 @@ pub extern "system" fn librustzcash_ivk_to_pkd( } } +/// Return 32 byte randomness, uniform, to be used for a Sapling commitment. +#[no_mangle] +pub extern "system" fn librustzcash_sapling_generate_commitment_randomness( + result: *mut [c_uchar; 32], +) -> bool { + // create random 64 byte buffer + let mut rng = OsRng::new().expect("should be able to construct RNG"); + let mut buffer = [0u8; 64]; + for i in 0..buffer.len() { + buffer[i] = rng.gen(); + } + + // TODO: Remove this debug statement + println!("buffer of random bytes: {:?}", &buffer[..]); + + // reduce to uniform value + let r = ::Fs::to_uniform(&buffer[..]); + let result = unsafe { &mut *result }; + r.into_repr() + .write_le(&mut result[..]) + .expect("result must be 32 bytes"); + + true +} + +/// Compute Sapling note commitment. +#[no_mangle] +pub extern "system" fn librustzcash_sapling_compute_cm( + diversifier: *const [c_uchar; 11], + pk_d: *const [c_uchar; 32], + value: uint64_t, + r: *const [c_uchar; 32], + result: *mut [c_uchar; 32], +) -> bool { + let diversifier = sapling_crypto::primitives::Diversifier(unsafe { *diversifier }); + let g_d = match diversifier.g_d::(&JUBJUB) { + Some(g_d) => g_d, + None => return false, + }; + + let pk_d = match edwards::Point::::read(&(unsafe { &*pk_d })[..], &JUBJUB) { + Ok(p) => p, + Err(_) => return false, + }; + + let pk_d = match pk_d.as_prime_order(&JUBJUB) { + Some(pk_d) => pk_d, + None => return false, + }; + + // Deserialize randomness + let r = unsafe { *r }; + let mut repr = FsRepr::default(); + repr.read_le(&r[..]).expect("length is not 32 bytes"); + let r = match Fs::from_repr(repr) { + Ok(p) => p, + Err(_) => return false, + }; + + let note = sapling_crypto::primitives::Note { + value, + g_d, + pk_d, + r, + }; + + let result = unsafe { &mut *result }; + write_le(note.cm(&JUBJUB).into_repr(), &mut result[..]); + + true +} + /// XOR two uint64_t values and return the result, used /// as a temporary mechanism for introducing Rust into /// Zcash. From eb3d8aa12cd70dc50e80fb38dd60ded436e01e99 Mon Sep 17 00:00:00 2001 From: Simon Date: Fri, 1 Jun 2018 12:20:22 -0700 Subject: [PATCH 2/4] Add test for generating commitment randomness. --- include/librustzcash.h | 3 +-- src/rustzcash.rs | 28 ++++++++++++++++++++-------- 2 files changed, 21 insertions(+), 10 deletions(-) diff --git a/include/librustzcash.h b/include/librustzcash.h index 876e727..f877eef 100644 --- a/include/librustzcash.h +++ b/include/librustzcash.h @@ -118,8 +118,7 @@ extern "C" { /// Generate uniform Sapling commitment randomness `r`. /// The result is of length 32. - /// Returns false if there was an error. - bool librustzcash_sapling_generate_commitment_randomness( + void librustzcash_sapling_generate_r( unsigned char *result ); diff --git a/src/rustzcash.rs b/src/rustzcash.rs index f43bfb1..8ff895f 100644 --- a/src/rustzcash.rs +++ b/src/rustzcash.rs @@ -301,11 +301,28 @@ pub extern "system" fn librustzcash_ivk_to_pkd( } } +/// Test generation of commitment randomness +#[test] +fn test_gen_r() { + let mut r1 = [0u8; 32]; + let mut r2 = [0u8; 32]; + + // Verify different r values are generated + librustzcash_sapling_generate_r(&mut r1); + librustzcash_sapling_generate_r(&mut r2); + assert_ne!(r1, r2); + + // Verify r values are valid in the field + let mut repr = FsRepr::default(); + repr.read_le(&r1[..]).expect("length is not 32 bytes"); + let _ = Fs::from_repr(repr).unwrap(); + repr.read_le(&r2[..]).expect("length is not 32 bytes"); + let _ = Fs::from_repr(repr).unwrap(); +} + /// Return 32 byte randomness, uniform, to be used for a Sapling commitment. #[no_mangle] -pub extern "system" fn librustzcash_sapling_generate_commitment_randomness( - result: *mut [c_uchar; 32], -) -> bool { +pub extern "system" fn librustzcash_sapling_generate_r(result: *mut [c_uchar; 32]) { // create random 64 byte buffer let mut rng = OsRng::new().expect("should be able to construct RNG"); let mut buffer = [0u8; 64]; @@ -313,17 +330,12 @@ pub extern "system" fn librustzcash_sapling_generate_commitment_randomness( buffer[i] = rng.gen(); } - // TODO: Remove this debug statement - println!("buffer of random bytes: {:?}", &buffer[..]); - // reduce to uniform value let r = ::Fs::to_uniform(&buffer[..]); let result = unsafe { &mut *result }; r.into_repr() .write_le(&mut result[..]) .expect("result must be 32 bytes"); - - true } /// Compute Sapling note commitment. From 44e2a53856ae6786110efdb4571f547a175f2dbd Mon Sep 17 00:00:00 2001 From: Simon Date: Fri, 1 Jun 2018 18:51:59 -0700 Subject: [PATCH 3/4] Add test of librustzcash_sapling_compute_cm against test vectors. --- src/tests/commitments.rs | 659 +++++++++++++++++++++++++++++++++++++++ src/tests/mod.rs | 1 + 2 files changed, 660 insertions(+) create mode 100644 src/tests/commitments.rs diff --git a/src/tests/commitments.rs b/src/tests/commitments.rs new file mode 100644 index 0000000..e7116c4 --- /dev/null +++ b/src/tests/commitments.rs @@ -0,0 +1,659 @@ +use librustzcash_sapling_compute_cm; + +#[test] +fn commitments() { + #![allow(dead_code)] + struct TestVector { + sk: [u8; 32], + ask: [u8; 32], + nsk: [u8; 32], + ovk: [u8; 32], + ak: [u8; 32], + nk: [u8; 32], + ivk: [u8; 32], + default_d: [u8; 11], + default_pk_d: [u8; 32], + note_v: u64, + note_r: [u8; 32], + note_cm: [u8; 32], + note_pos: u64, + note_nf: [u8; 32], + }; + + // From https://github.com/zcash-hackworks/zcash-test-vectors/blob/master/sapling_key_components.py + let test_vectors = vec![ + TestVector { + sk: [ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + ], + ask: [ + 0x85, 0x48, 0xa1, 0x4a, 0x47, 0x3e, 0xa5, 0x47, 0xaa, 0x23, 0x78, 0x40, 0x20, 0x44, + 0xf8, 0x18, 0xcf, 0x19, 0x11, 0xcf, 0x5d, 0xd2, 0x05, 0x4f, 0x67, 0x83, 0x45, 0xf0, + 0x0d, 0x0e, 0x88, 0x06, + ], + nsk: [ + 0x30, 0x11, 0x4e, 0xa0, 0xdd, 0x0b, 0xb6, 0x1c, 0xf0, 0xea, 0xea, 0xb6, 0xec, 0x33, + 0x31, 0xf5, 0x81, 0xb0, 0x42, 0x5e, 0x27, 0x33, 0x85, 0x01, 0x26, 0x2d, 0x7e, 0xac, + 0x74, 0x5e, 0x6e, 0x05, + ], + ovk: [ + 0x98, 0xd1, 0x69, 0x13, 0xd9, 0x9b, 0x04, 0x17, 0x7c, 0xab, 0xa4, 0x4f, 0x6e, 0x4d, + 0x22, 0x4e, 0x03, 0xb5, 0xac, 0x03, 0x1d, 0x7c, 0xe4, 0x5e, 0x86, 0x51, 0x38, 0xe1, + 0xb9, 0x96, 0xd6, 0x3b, + ], + ak: [ + 0xf3, 0x44, 0xec, 0x38, 0x0f, 0xe1, 0x27, 0x3e, 0x30, 0x98, 0xc2, 0x58, 0x8c, 0x5d, + 0x3a, 0x79, 0x1f, 0xd7, 0xba, 0x95, 0x80, 0x32, 0x76, 0x07, 0x77, 0xfd, 0x0e, 0xfa, + 0x8e, 0xf1, 0x16, 0x20, + ], + nk: [ + 0xf7, 0xcf, 0x9e, 0x77, 0xf2, 0xe5, 0x86, 0x83, 0x38, 0x3c, 0x15, 0x19, 0xac, 0x7b, + 0x06, 0x2d, 0x30, 0x04, 0x0e, 0x27, 0xa7, 0x25, 0xfb, 0x88, 0xfb, 0x19, 0xa9, 0x78, + 0xbd, 0x3f, 0xd6, 0xba, + ], + ivk: [ + 0xb7, 0x0b, 0x7c, 0xd0, 0xed, 0x03, 0xcb, 0xdf, 0xd7, 0xad, 0xa9, 0x50, 0x2e, 0xe2, + 0x45, 0xb1, 0x3e, 0x56, 0x9d, 0x54, 0xa5, 0x71, 0x9d, 0x2d, 0xaa, 0x0f, 0x5f, 0x14, + 0x51, 0x47, 0x92, 0x04, + ], + default_d: [ + 0xf1, 0x9d, 0x9b, 0x79, 0x7e, 0x39, 0xf3, 0x37, 0x44, 0x58, 0x39 + ], + default_pk_d: [ + 0xdb, 0x4c, 0xd2, 0xb0, 0xaa, 0xc4, 0xf7, 0xeb, 0x8c, 0xa1, 0x31, 0xf1, 0x65, 0x67, + 0xc4, 0x45, 0xa9, 0x55, 0x51, 0x26, 0xd3, 0xc2, 0x9f, 0x14, 0xe3, 0xd7, 0x76, 0xe8, + 0x41, 0xae, 0x74, 0x15, + ], + note_v: 0, + note_r: [ + 0x39, 0x17, 0x6d, 0xac, 0x39, 0xac, 0xe4, 0x98, 0x0e, 0xcc, 0x8d, 0x77, 0x8e, 0x89, + 0x86, 0x02, 0x55, 0xec, 0x36, 0x15, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, + ], + note_cm: [ + 0xcb, 0x3c, 0xf9, 0x15, 0x32, 0x70, 0xd5, 0x7e, 0xb9, 0x14, 0xc6, 0xc2, 0xbc, 0xc0, + 0x18, 0x50, 0xc9, 0xfe, 0xd4, 0x4f, 0xce, 0x08, 0x06, 0x27, 0x8f, 0x08, 0x3e, 0xf2, + 0xdd, 0x07, 0x64, 0x39, + ], + note_pos: 0, + note_nf: [ + 0x44, 0xfa, 0xd6, 0x56, 0x4f, 0xfd, 0xec, 0x9f, 0xa1, 0x9c, 0x43, 0xa2, 0x8f, 0x86, + 0x1d, 0x5e, 0xbf, 0x60, 0x23, 0x46, 0x00, 0x7d, 0xe7, 0x62, 0x67, 0xd9, 0x75, 0x27, + 0x47, 0xab, 0x40, 0x63, + ], + }, + TestVector { + sk: [ + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, + 0x01, 0x01, 0x01, 0x01, + ], + ask: [ + 0xc9, 0x43, 0x56, 0x29, 0xbf, 0x8b, 0xff, 0xe5, 0x5e, 0x73, 0x35, 0xec, 0x07, 0x77, + 0x18, 0xba, 0x60, 0xba, 0x28, 0xd7, 0xac, 0x37, 0x94, 0xb7, 0x4f, 0x51, 0x2c, 0x31, + 0xaf, 0x0a, 0x53, 0x04, + ], + nsk: [ + 0x11, 0xac, 0xc2, 0xea, 0xd0, 0x7b, 0x5f, 0x00, 0x8c, 0x1f, 0x0f, 0x09, 0x0c, 0xc8, + 0xdd, 0xf3, 0x35, 0x23, 0x6f, 0xf4, 0xb2, 0x53, 0xc6, 0x49, 0x56, 0x95, 0xe9, 0xd6, + 0x39, 0xda, 0xcd, 0x08, + ], + ovk: [ + 0x3b, 0x94, 0x62, 0x10, 0xce, 0x6d, 0x1b, 0x16, 0x92, 0xd7, 0x39, 0x2a, 0xc8, 0x4a, + 0x8b, 0xc8, 0xf0, 0x3b, 0x72, 0x72, 0x3c, 0x7d, 0x36, 0x72, 0x1b, 0x80, 0x9a, 0x79, + 0xc9, 0xd6, 0xe4, 0x5b, + ], + ak: [ + 0x82, 0xff, 0x5e, 0xff, 0xc5, 0x27, 0xae, 0x84, 0x02, 0x0b, 0xf2, 0xd3, 0x52, 0x01, + 0xc1, 0x02, 0x19, 0x13, 0x19, 0x47, 0xff, 0x4b, 0x96, 0xf8, 0x81, 0xa4, 0x5f, 0x2e, + 0x8a, 0xe3, 0x05, 0x18, + ], + nk: [ + 0xc4, 0x53, 0x4d, 0x84, 0x8b, 0xb9, 0x18, 0xcf, 0x4a, 0x7f, 0x8b, 0x98, 0x74, 0x0a, + 0xb3, 0xcc, 0xee, 0x58, 0x67, 0x95, 0xff, 0x4d, 0xf6, 0x45, 0x47, 0xa8, 0x88, 0x8a, + 0x6c, 0x74, 0x15, 0xd2, + ], + ivk: [ + 0xc5, 0x18, 0x38, 0x44, 0x66, 0xb2, 0x69, 0x88, 0xb5, 0x10, 0x90, 0x67, 0x41, 0x8d, + 0x19, 0x2d, 0x9d, 0x6b, 0xd0, 0xd9, 0x23, 0x22, 0x05, 0xd7, 0x74, 0x18, 0xc2, 0x40, + 0xfc, 0x68, 0xa4, 0x06, + ], + default_d: [ + 0xae, 0xf1, 0x80, 0xf6, 0xe3, 0x4e, 0x35, 0x4b, 0x88, 0x8f, 0x81 + ], + default_pk_d: [ + 0xa6, 0xb1, 0x3e, 0xa3, 0x36, 0xdd, 0xb7, 0xa6, 0x7b, 0xb0, 0x9a, 0x0e, 0x68, 0xe9, + 0xd3, 0xcf, 0xb3, 0x92, 0x10, 0x83, 0x1e, 0xa3, 0xa2, 0x96, 0xba, 0x09, 0xa9, 0x22, + 0x06, 0x0f, 0xd3, 0x8b, + ], + note_v: 12227227834928555328, + note_r: [ + 0x47, 0x8b, 0xa0, 0xee, 0x6e, 0x1a, 0x75, 0xb6, 0x00, 0x03, 0x6f, 0x26, 0xf1, 0x8b, + 0x70, 0x15, 0xab, 0x55, 0x6b, 0xed, 0xdf, 0x8b, 0x96, 0x02, 0x38, 0x86, 0x9f, 0x89, + 0xdd, 0x80, 0x4e, 0x06, + ], + note_cm: [ + 0xb5, 0x78, 0x93, 0x50, 0x0b, 0xfb, 0x85, 0xdf, 0x2e, 0x8b, 0x01, 0xac, 0x45, 0x2f, + 0x89, 0xe1, 0x0e, 0x26, 0x6b, 0xcf, 0xa3, 0x1c, 0x31, 0xb2, 0x9a, 0x53, 0xae, 0x72, + 0xca, 0xd4, 0x69, 0x50, + ], + note_pos: 763714296, + note_nf: [ + 0x67, 0x9e, 0xb0, 0xc3, 0xa7, 0x57, 0xe2, 0xae, 0x83, 0xcd, 0xb4, 0x2a, 0x1a, 0xb2, + 0x59, 0xd7, 0x83, 0x88, 0x31, 0x54, 0x19, 0xad, 0xc7, 0x1d, 0x2e, 0x37, 0x63, 0x17, + 0x4c, 0x2e, 0x9d, 0x93, + ], + }, + TestVector { + sk: [ + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, + 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, + 0x02, 0x02, 0x02, 0x02, + ], + ask: [ + 0xee, 0x1c, 0x3d, 0x7e, 0xfe, 0x0a, 0x78, 0x06, 0x3d, 0x6a, 0xf3, 0xd9, 0xd8, 0x12, + 0x12, 0xaf, 0x47, 0xb7, 0xc1, 0xb7, 0x61, 0xf8, 0x5c, 0xcb, 0x06, 0x6f, 0xc1, 0x1a, + 0x6a, 0x42, 0x17, 0x03, + ], + nsk: [ + 0x1d, 0x3b, 0x71, 0x37, 0x55, 0xd7, 0x48, 0x75, 0xe8, 0xea, 0x38, 0xfd, 0x16, 0x6e, + 0x76, 0xc6, 0x2a, 0x42, 0x50, 0x21, 0x6e, 0x6b, 0xbf, 0xe4, 0x8a, 0x5e, 0x2e, 0xab, + 0xad, 0x11, 0x7f, 0x0b, + ], + ovk: [ + 0x8b, 0xf4, 0x39, 0x0e, 0x28, 0xdd, 0xc9, 0x5b, 0x83, 0x02, 0xc3, 0x81, 0xd5, 0x81, + 0x0b, 0x84, 0xba, 0x8e, 0x60, 0x96, 0xe5, 0xa7, 0x68, 0x22, 0x77, 0x4f, 0xd4, 0x9f, + 0x49, 0x1e, 0x8f, 0x49, + ], + ak: [ + 0xab, 0x83, 0x57, 0x4e, 0xb5, 0xde, 0x85, 0x9a, 0x0a, 0xb8, 0x62, 0x9d, 0xec, 0x34, + 0xc7, 0xbe, 0xe8, 0xc3, 0xfc, 0x74, 0xdf, 0xa0, 0xb1, 0x9a, 0x3a, 0x74, 0x68, 0xd1, + 0x5d, 0xca, 0x64, 0xc6, + ], + nk: [ + 0x95, 0xd5, 0x80, 0x53, 0xe0, 0x59, 0x2e, 0x4a, 0x16, 0x9c, 0xc0, 0xb7, 0x92, 0x8a, + 0xaa, 0xc3, 0xde, 0x24, 0xef, 0x15, 0x31, 0xaa, 0x9e, 0xb6, 0xf4, 0xab, 0x93, 0x91, + 0x4d, 0xa8, 0xa0, 0x6e, + ], + ivk: [ + 0x47, 0x1c, 0x24, 0xa3, 0xdc, 0x87, 0x30, 0xe7, 0x50, 0x36, 0xc0, 0xa9, 0x5f, 0x3e, + 0x2f, 0x7d, 0xd1, 0xbe, 0x6f, 0xb9, 0x3a, 0xd2, 0x95, 0x92, 0x20, 0x3d, 0xef, 0x30, + 0x41, 0x95, 0x45, 0x05, + ], + default_d: [ + 0x75, 0x99, 0xf0, 0xbf, 0x9b, 0x57, 0xcd, 0x2d, 0xc2, 0x99, 0xb6 + ], + default_pk_d: [ + 0x66, 0x14, 0x17, 0x39, 0x51, 0x4b, 0x28, 0xf0, 0x5d, 0xef, 0x8a, 0x18, 0xee, 0xee, + 0x5e, 0xed, 0x4d, 0x44, 0xc6, 0x22, 0x5c, 0x3c, 0x65, 0xd8, 0x8d, 0xd9, 0x90, 0x77, + 0x08, 0x01, 0x2f, 0x5a, + ], + note_v: 6007711596147559040, + note_r: [ + 0x14, 0x7c, 0xf2, 0xb5, 0x1b, 0x4c, 0x7c, 0x63, 0xcb, 0x77, 0xb9, 0x9e, 0x8b, 0x78, + 0x3e, 0x5b, 0x51, 0x11, 0xdb, 0x0a, 0x7c, 0xa0, 0x4d, 0x6c, 0x01, 0x4a, 0x1d, 0x7d, + 0xa8, 0x3b, 0xae, 0x0a, + ], + note_cm: [ + 0xdb, 0x85, 0xa7, 0x0a, 0x98, 0x43, 0x7f, 0x73, 0x16, 0x7f, 0xc3, 0x32, 0xd5, 0xb7, + 0xb7, 0x40, 0x82, 0x96, 0x66, 0x17, 0x70, 0xb1, 0x01, 0xb0, 0xaa, 0x87, 0x83, 0x9f, + 0x4e, 0x55, 0xf1, 0x51, + ], + note_pos: 1527428592, + note_nf: [ + 0xe9, 0x8f, 0x6a, 0x8f, 0x34, 0xff, 0x49, 0x80, 0x59, 0xb3, 0xc7, 0x31, 0xb9, 0x1f, + 0x45, 0x11, 0x08, 0xc4, 0x95, 0x4d, 0x91, 0x94, 0x84, 0x36, 0x1c, 0xf9, 0xb4, 0x8f, + 0x59, 0xae, 0x1d, 0x14, + ], + }, + TestVector { + sk: [ + 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, + 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, + 0x03, 0x03, 0x03, 0x03, + ], + ask: [ + 0x00, 0xc3, 0xa1, 0xe1, 0xca, 0x8f, 0x4e, 0x04, 0x80, 0xee, 0x1e, 0xe9, 0x0c, 0xa7, + 0x51, 0x78, 0x79, 0xd3, 0xfc, 0x5c, 0x81, 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0x44, 0x4d, + 0x35, 0x5f, 0x51, 0x06, + ], + ak: [ + 0xff, 0x27, 0xdb, 0x07, 0x51, 0x94, 0x5d, 0x3e, 0xe4, 0xbe, 0x9c, 0xf1, 0x5c, 0x2e, + 0xa2, 0x11, 0xb2, 0x4b, 0x16, 0x4d, 0x5f, 0x2d, 0x7d, 0xdf, 0xf5, 0xe4, 0xa0, 0x70, + 0x8f, 0x10, 0xb9, 0x5e, + ], + nk: [ + 0x94, 0x38, 0x85, 0x95, 0x9d, 0x4e, 0xf8, 0xa9, 0xcf, 0xca, 0x07, 0xc4, 0x57, 0xf0, + 0x9e, 0xc7, 0x4b, 0x96, 0xf9, 0x93, 0xd8, 0xe0, 0xfa, 0x32, 0xb1, 0x9c, 0x03, 0xe3, + 0xb0, 0x7a, 0x42, 0x0f, + ], + ivk: [ + 0xb5, 0xc5, 0x89, 0x49, 0x43, 0x95, 0x69, 0x33, 0xc0, 0xe5, 0xc1, 0x2d, 0x31, 0x1f, + 0xc1, 0x2c, 0xba, 0x58, 0x35, 0x4b, 0x5c, 0x38, 0x9e, 0xdc, 0x03, 0xda, 0x55, 0x08, + 0x4f, 0x74, 0xc2, 0x05, + ], + default_d: [ + 0xbe, 0xbb, 0x0f, 0xb4, 0x6b, 0x8a, 0xaf, 0xf8, 0x90, 0x40, 0xf6 + ], + default_pk_d: [ + 0xd1, 0x1d, 0xa0, 0x1f, 0x0b, 0x43, 0xbd, 0xd5, 0x28, 0x8d, 0x32, 0x38, 0x5b, 0x87, + 0x71, 0xd2, 0x23, 0x49, 0x3c, 0x69, 0x80, 0x25, 0x44, 0x04, 0x3f, 0x77, 0xcf, 0x1d, + 0x71, 0xc1, 0xcb, 0x8c, + ], + note_v: 18023134788442677120, + note_r: [ + 0x49, 0xf9, 0x0b, 0x47, 0xfd, 0x52, 0xfe, 0xe7, 0xc1, 0xc8, 0x1f, 0x0d, 0xcb, 0x5b, + 0x74, 0xc3, 0xfb, 0x9b, 0x3e, 0x03, 0x97, 0x6f, 0x8b, 0x75, 0x24, 0xea, 0xba, 0xd0, + 0x08, 0x89, 0x21, 0x07, + ], + note_cm: [ + 0x57, 0x2b, 0xa2, 0x05, 0x25, 0xb0, 0xac, 0x4d, 0x6d, 0xc0, 0x1a, 0xc2, 0xea, 0x10, + 0x90, 0xb6, 0xe0, 0xf2, 0xf4, 0xbf, 0x4e, 0xc4, 0xa0, 0xdb, 0x5b, 0xbc, 0xcb, 0x5b, + 0x78, 0x3a, 0x1e, 0x55, + ], + note_pos: 287318480, + note_nf: [ + 0xfc, 0x74, 0xcd, 0x0e, 0x4b, 0xe0, 0x49, 0x57, 0xb1, 0x96, 0xcf, 0x87, 0x34, 0xae, + 0x99, 0x23, 0x96, 0xaf, 0x4c, 0xfa, 0x8f, 0xec, 0xbb, 0x86, 0xf9, 0x61, 0xe6, 0xb4, + 0x07, 0xd5, 0x1e, 0x11, + ], + }, + TestVector { + sk: [ + 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, + 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, + 0x07, 0x07, 0x07, 0x07, + ], + ask: [ + 0x74, 0xb4, 0x4a, 0x37, 0xf1, 0x50, 0x23, 0xc0, 0x60, 0x42, 0x7e, 0x1d, 0xae, 0xa3, + 0xf6, 0x43, 0x12, 0xdd, 0x8f, 0xeb, 0x7b, 0x2c, 0xed, 0xf0, 0xdd, 0x55, 0x44, 0x49, + 0x3f, 0x87, 0x2c, 0x06, + ], + nsk: [ + 0x07, 0x5c, 0x35, 0xdb, 0x8b, 0x1b, 0x25, 0x75, 0x42, 0x23, 0xec, 0xee, 0x34, 0xab, + 0x73, 0x0d, 0xdd, 0xd1, 0xf1, 0x4a, 0x6a, 0x54, 0xf4, 0xc6, 0xf4, 0x68, 0x45, 0x3c, + 0x3c, 0x6e, 0xd6, 0x0b, + ], + ovk: [ + 0xe9, 0xe0, 0xdc, 0x1e, 0xd3, 0x11, 0xda, 0xed, 0x64, 0xbd, 0x74, 0xda, 0x5d, 0x94, + 0xfe, 0x88, 0xa6, 0xea, 0x41, 0x4b, 0x73, 0x12, 0xde, 0x3d, 0x2a, 0x78, 0xf6, 0x46, + 0x32, 0xbb, 0xe3, 0x73, + ], + ak: [ + 0x28, 0x3f, 0x9a, 0xaf, 0xa9, 0xbc, 0xb3, 0xe6, 0xce, 0x17, 0xe6, 0x32, 0x12, 0x63, + 0x4c, 0xb3, 0xee, 0x55, 0x0c, 0x47, 0x6b, 0x67, 0x6b, 0xd3, 0x56, 0xa6, 0xdf, 0x8a, + 0xdf, 0x51, 0xd2, 0x5e, + ], + nk: [ + 0xdc, 0x4c, 0x67, 0xb1, 0x0d, 0x4b, 0x0a, 0x21, 0x8d, 0xc6, 0xe1, 0x48, 0x70, 0x66, + 0x74, 0x0a, 0x40, 0x93, 0x17, 0x86, 0x6c, 0x32, 0xe6, 0x64, 0xb5, 0x0e, 0x39, 0x7a, + 0xa8, 0x03, 0x89, 0xd4, + ], + ivk: [ + 0x87, 0x16, 0xc8, 0x28, 0x80, 0xe1, 0x36, 0x83, 0xe1, 0xbb, 0x05, 0x9d, 0xd0, 0x6c, + 0x80, 0xc9, 0x01, 0x34, 0xa9, 0x6d, 0x5a, 0xfc, 0xa8, 0xaa, 0xc2, 0xbb, 0xf6, 0x8b, + 0xb0, 0x5f, 0x84, 0x02, + ], + default_d: [ + 0xad, 0x6e, 0x2e, 0x18, 0x5a, 0x31, 0x00, 0xe3, 0xa6, 0xa8, 0xb3 + ], + default_pk_d: [ + 0x32, 0xcb, 0x28, 0x06, 0xb8, 0x82, 0xf1, 0x36, 0x8b, 0x0d, 0x4a, 0x89, 0x8f, 0x72, + 0xc4, 0xc8, 0xf7, 0x28, 0x13, 0x2c, 0xc1, 0x24, 0x56, 0x94, 0x6e, 0x7f, 0x4c, 0xb0, + 0xfb, 0x05, 0x8d, 0xa9, + ], + note_v: 11803618549661680832, + note_r: [ + 0x51, 0x65, 0xaf, 0xf2, 0x2d, 0xd4, 0xed, 0x56, 0xb4, 0xd8, 0x1d, 0x1f, 0x17, 0x1c, + 0xc3, 0xd6, 0x43, 0x2f, 0xed, 0x1b, 0xeb, 0xf2, 0x0a, 0x7b, 0xea, 0xb1, 0x2d, 0xb1, + 0x42, 0xf9, 0x4a, 0x0c, + ], + note_cm: [ + 0xab, 0x7f, 0xc5, 0x66, 0x87, 0x3c, 0xcd, 0xe6, 0x71, 0xf5, 0x98, 0x27, 0x67, 0x85, + 0x60, 0xa0, 0x06, 0xf8, 0x2b, 0xb7, 0xad, 0xcd, 0x75, 0x22, 0x3f, 0xa8, 0x59, 0x36, + 0xf7, 0x8c, 0x2b, 0x23, + ], + note_pos: 1051032776, + note_nf: [ + 0xd2, 0xe8, 0x87, 0xbd, 0x85, 0x4a, 0x80, 0x2b, 0xce, 0x85, 0x70, 0x53, 0x02, 0x0f, + 0x5d, 0x3e, 0x7c, 0x8a, 0xe5, 0x26, 0x7c, 0x5b, 0x65, 0x83, 0xb3, 0xd2, 0x12, 0xcc, + 0x8b, 0xb6, 0x98, 0x90, + ], + }, + TestVector { + sk: [ + 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, + 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, + 0x08, 0x08, 0x08, 0x08, + ], + ask: [ + 0x03, 0x9d, 0xd9, 0x3d, 0xf3, 0x11, 0xff, 0x8f, 0xba, 0xb3, 0xfe, 0x23, 0x02, 0x19, + 0xcd, 0x42, 0xac, 0x87, 0x94, 0x84, 0xf3, 0x0b, 0x90, 0x3a, 0x3c, 0x1e, 0x67, 0xcc, + 0xca, 0x5a, 0x7b, 0x0d, + ], + nsk: [ + 0x04, 0x9f, 0xa1, 0x4f, 0x48, 0x6c, 0x75, 0xb9, 0xfa, 0xd7, 0xe3, 0xb6, 0x73, 0xa4, + 0x43, 0xdd, 0x07, 0x4e, 0xaa, 0x96, 0xed, 0xcb, 0x2a, 0x53, 0xea, 0xaa, 0xbd, 0xaf, + 0x70, 0xff, 0xbb, 0x08, + ], + ovk: [ + 0x14, 0x7d, 0xd1, 0x1d, 0x77, 0xeb, 0xa1, 0xb1, 0x63, 0x6f, 0xd6, 0x19, 0x0c, 0x62, + 0xb9, 0xa5, 0xd0, 0x48, 0x1b, 0xee, 0x7e, 0x91, 0x7f, 0xab, 0x02, 0xe2, 0x18, 0x58, + 0x06, 0x3a, 0xb5, 0x04, + ], + ak: [ + 0x36, 0x40, 0x48, 0xee, 0xdb, 0xe8, 0xca, 0x20, 0x5e, 0xb7, 0xe7, 0xba, 0x0a, 0x90, + 0x12, 0x16, 0x6c, 0x7c, 0x7b, 0xd9, 0xeb, 0x22, 0x8e, 0x08, 0x48, 0x14, 0x48, 0xc4, + 0x88, 0xaa, 0x21, 0xd2, + ], + nk: [ + 0xed, 0x60, 0xaf, 0x1c, 0xe7, 0xdf, 0x38, 0x07, 0x0d, 0x38, 0x51, 0x43, 0x2a, 0x96, + 0x48, 0x0d, 0xb0, 0xb4, 0x17, 0xc3, 0x68, 0x2a, 0x1d, 0x68, 0xe3, 0xe8, 0x93, 0x34, + 0x23, 0x5c, 0x0b, 0xdf, + ], + ivk: [ + 0x99, 0xc9, 0xb4, 0xb8, 0x4f, 0x4b, 0x4e, 0x35, 0x0f, 0x78, 0x7d, 0x1c, 0xf7, 0x05, + 0x1d, 0x50, 0xec, 0xc3, 0x4b, 0x1a, 0x5b, 0x20, 0xd2, 0xd2, 0x13, 0x9b, 0x4a, 0xf1, + 0xf1, 0x60, 0xe0, 0x01, + ], + default_d: [ + 0x21, 0xc9, 0x0e, 0x1c, 0x65, 0x8b, 0x3e, 0xfe, 0x86, 0xaf, 0x58 + ], + default_pk_d: [ + 0x9e, 0x64, 0x17, 0x4b, 0x4a, 0xb9, 0x81, 0x40, 0x5c, 0x32, 0x3b, 0x5e, 0x12, 0x47, + 0x59, 0x45, 0xa4, 0x6d, 0x4f, 0xed, 0xf8, 0x06, 0x08, 0x28, 0x04, 0x1c, 0xd2, 0x0e, + 0x62, 0xfd, 0x2c, 0xef, + ], + note_v: 5584102310880684544, + note_r: [ + 0x8c, 0x3e, 0x56, 0x44, 0x9d, 0xc8, 0x63, 0x54, 0xd3, 0x3b, 0x02, 0x5e, 0xf2, 0x79, + 0x34, 0x60, 0xbc, 0xb1, 0x69, 0xf3, 0x32, 0x4e, 0x4a, 0x6b, 0x64, 0xba, 0xa6, 0x08, + 0x32, 0x31, 0x57, 0x04, + ], + note_cm: [ + 0x7b, 0x48, 0xa8, 0x37, 0x5d, 0x3e, 0xbd, 0x56, 0xbc, 0x64, 0x9b, 0xb5, 0xb5, 0x24, + 0x23, 0x36, 0xc2, 0xa0, 0x5a, 0x08, 0x03, 0x23, 0x9b, 0x5b, 0x88, 0xfd, 0x92, 0x07, + 0x8f, 0xea, 0x4d, 0x04, + ], + note_pos: 1814747072, + note_nf: [ + 0xa8, 0x2f, 0x17, 0x50, 0xcc, 0x5b, 0x2b, 0xee, 0x64, 0x9a, 0x36, 0x5c, 0x04, 0x20, + 0xed, 0x87, 0x07, 0x5b, 0x88, 0x71, 0xfd, 0xa4, 0xa7, 0xf5, 0x84, 0x0d, 0x6b, 0xbe, + 0xb1, 0x7c, 0xd6, 0x20, + ], + }, + TestVector { + sk: [ + 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, + 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, 0x09, + 0x09, 0x09, 0x09, 0x09, + ], + ask: [ + 0xeb, 0xbb, 0x40, 0xa9, 0x80, 0xba, 0x3b, 0x88, 0x60, 0x94, 0x8d, 0x01, 0x1e, 0x1b, + 0xfb, 0x4a, 0xff, 0xe1, 0x6c, 0x65, 0x2e, 0x90, 0xe9, 0x82, 0x58, 0x30, 0x2f, 0x44, + 0x64, 0xc9, 0x1e, 0x0c, + ], + nsk: [ + 0x68, 0x43, 0x1b, 0x19, 0x91, 0x04, 0x21, 0x52, 0x00, 0xb9, 0x5e, 0xe5, 0xcb, 0x71, + 0xbf, 0x8b, 0x88, 0x3a, 0x3e, 0x95, 0xb7, 0x98, 0x9c, 0xad, 0x19, 0x70, 0x63, 0x14, + 0x1e, 0xbb, 0xfd, 0x00, + ], + ovk: [ + 0x57, 0x34, 0x67, 0xa7, 0xb3, 0x0e, 0xad, 0x6c, 0xcc, 0x50, 0x47, 0x44, 0xca, 0x9e, + 0x1a, 0x28, 0x1a, 0x0d, 0x1a, 0x08, 0x73, 0x8b, 0x06, 0xa0, 0x68, 0x4f, 0xea, 0xcd, + 0x1e, 0x9d, 0x12, 0x6d, + ], + ak: [ + 0x71, 0xc3, 0x52, 0x3e, 0xec, 0xa3, 0x53, 0x11, 0xfb, 0xd5, 0xd7, 0xe7, 0xd7, 0x0b, + 0x70, 0x9d, 0x6c, 0x35, 0xa2, 0x4f, 0x26, 0x2b, 0x34, 0xbf, 0x64, 0x05, 0x9b, 0xf2, + 0xc0, 0x2e, 0x0b, 0xa8, + ], + nk: [ + 0x62, 0x44, 0x00, 0x10, 0x3b, 0x65, 0x69, 0xb7, 0x35, 0x8f, 0xe8, 0x0f, 0x6f, 0x6c, + 0xad, 0x43, 0x25, 0xde, 0xfd, 0xa9, 0xd9, 0x49, 0x9c, 0x2b, 0x8f, 0x88, 0x6a, 0x62, + 0x69, 0xa2, 0xaa, 0x52, + ], + ivk: [ + 0xdb, 0x95, 0xea, 0x8b, 0xd9, 0xf9, 0x3d, 0x41, 0xb5, 0xab, 0x2b, 0xeb, 0xc9, 0x1a, + 0x38, 0xed, 0xd5, 0x27, 0x08, 0x3e, 0x2a, 0x6e, 0xf9, 0xf3, 0xc2, 0x97, 0x02, 0xd5, + 0xff, 0x89, 0xed, 0x00, + ], + default_d: [ + 0x23, 0x3c, 0x4a, 0xb8, 0x86, 0xa5, 0x5e, 0x3b, 0xa3, 0x74, 0xc0 + ], + default_pk_d: [ + 0xb6, 0x8e, 0x9e, 0xe0, 0xc0, 0x67, 0x8d, 0x7b, 0x30, 0x36, 0x93, 0x1c, 0x83, 0x1a, + 0x25, 0x25, 0x5f, 0x7e, 0xe4, 0x87, 0x38, 0x5a, 0x30, 0x31, 0x6e, 0x15, 0xf6, 0x48, + 0x2b, 0x87, 0x4f, 0xda, + ], + note_v: 17811330145809239872, + note_r: [ + 0x6e, 0xbb, 0xed, 0x74, 0x36, 0x19, 0xa2, 0x56, 0xf9, 0xad, 0x2e, 0x85, 0x88, 0x0c, + 0xfa, 0xa9, 0x09, 0x8a, 0x5f, 0xdb, 0x16, 0x29, 0x99, 0x0d, 0x9a, 0x7d, 0x3b, 0xb9, + 0x3f, 0xc9, 0x00, 0x03, + ], + note_cm: [ + 0xd3, 0x76, 0xa7, 0xbe, 0xe8, 0xce, 0x67, 0xf4, 0xef, 0xde, 0x56, 0xaa, 0x77, 0xcf, + 0x64, 0x41, 0x9b, 0x0e, 0x55, 0x0a, 0xbb, 0xcb, 0x8e, 0x2b, 0xcb, 0xda, 0x8b, 0x63, + 0xe4, 0x1d, 0xeb, 0x37, + ], + note_pos: 2578461368, + note_nf: [ + 0x65, 0x36, 0x74, 0x87, 0x3b, 0x3c, 0x67, 0x0c, 0x58, 0x85, 0x84, 0x73, 0xe7, 0xfe, + 0x72, 0x19, 0x72, 0xfb, 0x96, 0xe2, 0x15, 0xb8, 0x73, 0x77, 0xa1, 0x7c, 0xa3, 0x71, + 0x0d, 0x93, 0xc9, 0xe9, + ], + }, + ]; + + for tv in test_vectors { + // Compute commitment and compare with test vector + let mut result = [0u8; 32]; + assert!(librustzcash_sapling_compute_cm( + &tv.default_d, + &tv.default_pk_d, + tv.note_v, + &tv.note_r, + &mut result + )); + assert_eq!(&result, &tv.note_cm); + } +} diff --git a/src/tests/mod.rs b/src/tests/mod.rs index 1f32292..420f23f 100644 --- a/src/tests/mod.rs +++ b/src/tests/mod.rs @@ -2,6 +2,7 @@ use sapling_crypto::jubjub::{FixedGenerators, JubjubParams}; use super::JUBJUB; +mod commitments; mod key_components; mod signatures; From 943df43a89d2e179a072316b74b17f5242d4b26d Mon Sep 17 00:00:00 2001 From: Simon Date: Fri, 1 Jun 2018 19:03:51 -0700 Subject: [PATCH 4/4] Update authors. --- Cargo.toml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Cargo.toml b/Cargo.toml index 5f56f94..857fec3 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -4,6 +4,8 @@ version = "0.1.0" authors = [ "Sean Bowe ", "Jack Grigg ", + "Jay Graber ", + "Simon Liu " ] [lib]