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Merge pull request #29 from str4d/zip32 

ZIP 32 APIs
master
str4d 6 years ago committed by GitHub
parent
f5d2afb4ea 77ee1d6a8f
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5 changed files with 245 additions and 6 deletions
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  1. 117
      Cargo.lock
  2. 4
      Cargo.toml
  3. 29
      include/librustzcash.h
  4. 98
      src/rustzcash.rs
  5. 3
      src/tests/signatures.rs

117
Cargo.lock generated
Unescape View File

@ -1,3 +1,33 @@
[[package]]
name = "aes"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"aes-soft 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"aesni 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"block-cipher-trait 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "aes-soft"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"block-cipher-trait 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
"byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"opaque-debug 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "aesni"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"block-cipher-trait 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
"opaque-debug 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"stream-cipher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "arrayvec"
version = "0.4.7"
@ -41,6 +71,19 @@ dependencies = [
"constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "block-cipher-trait"
version = "0.5.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "byte-tools"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "byteorder"
version = "1.2.2"
@ -64,6 +107,18 @@ dependencies = [
"generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "fpe"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"aes 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"num-bigint 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
"num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "fuchsia-zircon"
version = "0.3.3"
@ -122,6 +177,7 @@ dependencies = [
"pairing 0.14.2 (registry+https://github.com/rust-lang/crates.io-index)",
"rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
"sapling-crypto 0.0.1 (git+https://github.com/zcash-hackworks/sapling-crypto?rev=21084bde2019c04bd34208e63c3560fe2c02fb0e)",
"zip32 0.0.0 (git+https://github.com/zcash-hackworks/zip32?rev=176470ef41583b5bd0bd749bd1b61d417aa8ec79)",
]
[[package]]
@ -129,6 +185,28 @@ name = "nodrop"
version = "0.1.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "num-bigint"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
"num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "num-integer"
version = "0.1.39"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "num-traits"
version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "num_cpus"
version = "1.8.0"
@ -137,6 +215,11 @@ dependencies = [
"libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "opaque-debug"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "pairing"
version = "0.14.2"
@ -169,6 +252,14 @@ dependencies = [
"rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "stream-cipher"
version = "0.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"generic-array 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "typenum"
version = "1.10.0"
@ -193,16 +284,36 @@ name = "winapi-x86_64-pc-windows-gnu"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "zip32"
version = "0.0.0"
source = "git+https://github.com/zcash-hackworks/zip32?rev=176470ef41583b5bd0bd749bd1b61d417aa8ec79#176470ef41583b5bd0bd749bd1b61d417aa8ec79"
dependencies = [
"aes 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"blake2-rfc 0.2.18 (git+https://github.com/gtank/blake2-rfc?rev=7a5b5fc99ae483a0043db7547fb79a6fa44b88a9)",
"byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
"fpe 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
"lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
"pairing 0.14.2 (registry+https://github.com/rust-lang/crates.io-index)",
"sapling-crypto 0.0.1 (git+https://github.com/zcash-hackworks/sapling-crypto?rev=21084bde2019c04bd34208e63c3560fe2c02fb0e)",
]
[metadata]
"checksum aes 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e6fb1737cdc8da3db76e90ca817a194249a38fcb500c2e6ecec39b29448aa873"
"checksum aes-soft 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "67cc03b0a090a05cb01e96998a01905d7ceedce1bc23b756c0bb7faa0682ccb1"
"checksum aesni 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f2838c142db62c0c6aea0a24054c46d35488532fdaea0f51dbeba430f0985df5"
"checksum arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)" = "a1e964f9e24d588183fcb43503abda40d288c8657dfc27311516ce2f05675aef"
"checksum bellman 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "eae372472c7ea8f7c8fc6a62f7d5535db8302de7f1aafda2e13a97c4830d3bcf"
"checksum bit-vec 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "02b4ff8b16e6076c3e14220b39fbc1fabb6737522281a388998046859400895f"
"checksum bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b3c30d3802dfb7281680d6285f2ccdaa8c2d8fee41f93805dba5c4cf50dc23cf"
"checksum blake2-rfc 0.2.18 (git+https://github.com/gtank/blake2-rfc?rev=7a5b5fc99ae483a0043db7547fb79a6fa44b88a9)" = "<none>"
"checksum block-cipher-trait 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "370424437b9459f3dfd68428ed9376ddfe03d8b70ede29cc533b3557df186ab4"
"checksum byte-tools 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "560c32574a12a89ecd91f5e742165893f86e3ab98d21f8ea548658eb9eef5f40"
"checksum byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "73b5bdfe7ee3ad0b99c9801d58807a9dbc9e09196365b0203853b99889ab3c87"
"checksum constant_time_eq 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "8ff012e225ce166d4422e0e78419d901719760f62ae2b7969ca6b564d1b54a9e"
"checksum crossbeam 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "24ce9782d4d5c53674646a6a4c1863a21a8fc0cb649b3c94dfc16e45071dea19"
"checksum digest 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "00a49051fef47a72c9623101b19bd71924a45cca838826caae3eaa4d00772603"
"checksum fpe 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ce3371c82bfbd984f624cab093f55e7336f5a6e589f8518e1258f54f011b89ad"
"checksum fuchsia-zircon 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2e9763c69ebaae630ba35f74888db465e49e259ba1bc0eda7d06f4a067615d82"
"checksum fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
"checksum futures 0.1.21 (registry+https://github.com/rust-lang/crates.io-index)" = "1a70b146671de62ec8c8ed572219ca5d594d9b06c0b364d5e67b722fc559b48c"
@ -211,11 +322,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c8f31047daa365f19be14b47c29df4f7c3b581832407daabe6ae77397619237d"
"checksum libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)" = "6fd41f331ac7c5b8ac259b8bf82c75c0fb2e469bbf37d2becbba9a6a2221965b"
"checksum nodrop 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "9a2228dca57108069a5262f2ed8bd2e82496d2e074a06d1ccc7ce1687b6ae0a2"
"checksum num-bigint 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3eceac7784c5dc97c2d6edf30259b4e153e6e2b42b3c85e9a6e9f45d06caef6e"
"checksum num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "e83d528d2677f0518c570baf2b7abdcf0cd2d248860b68507bdcb3e91d4c0cea"
"checksum num-traits 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "630de1ef5cc79d0cdd78b7e33b81f083cbfe90de0f4b2b2f07f905867c70e9fe"
"checksum num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c51a3322e4bca9d212ad9a158a02abc6934d005490c054a2778df73a70aa0a30"
"checksum opaque-debug 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d620c9c26834b34f039489ac0dfdb12c7ac15ccaf818350a64c9b5334a452ad7"
"checksum pairing 0.14.2 (registry+https://github.com/rust-lang/crates.io-index)" = "ceda21136251c6d5a422d3d798d8ac22515a6e8d3521bb60c59a8349d36d0d57"
"checksum rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "eba5f8cb59cc50ed56be8880a5c7b496bfd9bd26394e176bc67884094145c2c5"
"checksum sapling-crypto 0.0.1 (git+https://github.com/zcash-hackworks/sapling-crypto?rev=21084bde2019c04bd34208e63c3560fe2c02fb0e)" = "<none>"
"checksum stream-cipher 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac49bc6cb2847200d18bfb738ce89448570f4aa1c34ac0348db6205ee69a0777"
"checksum typenum 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "612d636f949607bdf9b123b4a6f6d966dedf3ff669f7f045890d3a4a73948169"
"checksum winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "04e3bd221fcbe8a271359c04f21a76db7d0c6028862d1bb5512d85e1e2eb5bb3"
"checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
"checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
"checksum zip32 0.0.0 (git+https://github.com/zcash-hackworks/zip32?rev=176470ef41583b5bd0bd749bd1b61d417aa8ec79)" = "<none>"

4
Cargo.toml
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@ -29,6 +29,10 @@ rev = "7a5b5fc99ae483a0043db7547fb79a6fa44b88a9"
git = "https://github.com/zcash-hackworks/sapling-crypto"
rev = "21084bde2019c04bd34208e63c3560fe2c02fb0e"
[dependencies.zip32]
git = "https://github.com/zcash-hackworks/zip32"
rev = "176470ef41583b5bd0bd749bd1b61d417aa8ec79"
[profile.release]
lto = true
panic = 'abort'

29
include/librustzcash.h
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@ -270,6 +270,35 @@ extern "C" {
uint64_t vpub_old,
uint64_t vpub_new
);
/// Derive the master ExtendedSpendingKey from a seed.
void librustzcash_zip32_xsk_master(
const unsigned char *seed,
size_t seedlen,
unsigned char *xsk_master
);
/// Derive a child ExtendedSpendingKey from a parent.
void librustzcash_zip32_xsk_derive(
const unsigned char *xsk_parent,
uint32_t i,
unsigned char *xsk_i
);
/// Derive a child ExtendedFullViewingKey from a parent.
bool librustzcash_zip32_xfvk_derive(
const unsigned char *xfvk_parent,
uint32_t i,
unsigned char *xfvk_i
);
/// Derive a PaymentAddress from an ExtendedFullViewingKey.
bool librustzcash_zip32_xfvk_address(
const unsigned char *xfvk,
const unsigned char *j,
unsigned char *j_ret,
unsigned char *addr_ret
);
}
#endif // LIBRUSTZCASH_INCLUDE_H_

98
src/rustzcash.rs
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@ -5,6 +5,7 @@ extern crate libc;
extern crate pairing;
extern crate rand;
extern crate sapling_crypto;
extern crate zip32;
mod hashreader;
@ -12,16 +13,20 @@ mod hashreader;
extern crate lazy_static;
use pairing::{
bls12_381::{Bls12, Fr, FrRepr}, BitIterator, Field, PrimeField, PrimeFieldRepr,
bls12_381::{Bls12, Fr, FrRepr},
BitIterator, Field, PrimeField, PrimeFieldRepr,
};
use sapling_crypto::{
circuit::multipack, constants::CRH_IVK_PERSONALIZATION,
circuit::multipack,
constants::CRH_IVK_PERSONALIZATION,
jubjub::{
edwards, fs::{Fs, FsRepr}, FixedGenerators, JubjubBls12, JubjubEngine, JubjubParams,
PrimeOrder, ToUniform, Unknown,
edwards,
fs::{Fs, FsRepr},
FixedGenerators, JubjubBls12, JubjubEngine, JubjubParams, PrimeOrder, ToUniform, Unknown,
},
pedersen_hash::{pedersen_hash, Personalization}, redjubjub::{self, Signature},
pedersen_hash::{pedersen_hash, Personalization},
redjubjub::{self, Signature},
};
use sapling_crypto::circuit::sprout::{self, TREE_DEPTH as SPROUT_TREE_DEPTH};
@ -1563,3 +1568,86 @@ pub extern "system" fn librustzcash_sapling_proving_ctx_init() -> *mut SaplingPr
pub extern "system" fn librustzcash_sapling_proving_ctx_free(ctx: *mut SaplingProvingContext) {
drop(unsafe { Box::from_raw(ctx) });
}
#[no_mangle]
pub extern "system" fn librustzcash_zip32_xsk_master(
seed: *const c_uchar,
seedlen: size_t,
xsk_master: *mut [c_uchar; 169],
) {
let seed = unsafe { std::slice::from_raw_parts(seed, seedlen) };
let xsk = zip32::ExtendedSpendingKey::master(seed);
xsk.write(&mut (unsafe { &mut *xsk_master })[..])
.expect("should be able to serialize an ExtendedSpendingKey");
}
#[no_mangle]
pub extern "system" fn librustzcash_zip32_xsk_derive(
xsk_parent: *const [c_uchar; 169],
i: uint32_t,
xsk_i: *mut [c_uchar; 169],
) {
let xsk_parent = zip32::ExtendedSpendingKey::read(&unsafe { *xsk_parent }[..])
.expect("valid ExtendedSpendingKey");
let i = zip32::ChildIndex::from_index(i);
let xsk = xsk_parent.derive_child(i);
xsk.write(&mut (unsafe { &mut *xsk_i })[..])
.expect("should be able to serialize an ExtendedSpendingKey");
}
#[no_mangle]
pub extern "system" fn librustzcash_zip32_xfvk_derive(
xfvk_parent: *const [c_uchar; 169],
i: uint32_t,
xfvk_i: *mut [c_uchar; 169],
) -> bool {
let xfvk_parent = zip32::ExtendedFullViewingKey::read(&unsafe { *xfvk_parent }[..])
.expect("valid ExtendedFullViewingKey");
let i = zip32::ChildIndex::from_index(i);
let xfvk = match xfvk_parent.derive_child(i) {
Ok(xfvk) => xfvk,
Err(_) => return false,
};
xfvk.write(&mut (unsafe { &mut *xfvk_i })[..])
.expect("should be able to serialize an ExtendedFullViewingKey");
true
}
#[no_mangle]
pub extern "system" fn librustzcash_zip32_xfvk_address(
xfvk: *const [c_uchar; 169],
j: *const [c_uchar; 11],
j_ret: *mut [c_uchar; 11],
addr_ret: *mut [c_uchar; 43],
) -> bool {
let xfvk = zip32::ExtendedFullViewingKey::read(&unsafe { *xfvk }[..])
.expect("valid ExtendedFullViewingKey");
let j = zip32::DiversifierIndex(unsafe { *j });
let addr = match xfvk.address(j) {
Ok(addr) => addr,
Err(_) => return false,
};
let j_ret = unsafe { &mut *j_ret };
let addr_ret = unsafe { &mut *addr_ret };
j_ret.copy_from_slice(&(addr.0).0);
addr_ret
.get_mut(..11)
.unwrap()
.copy_from_slice(&addr.1.diversifier.0);
addr.1
.pk_d
.write(addr_ret.get_mut(11..).unwrap())
.expect("should be able to serialize a PaymentAddress");
true
}

3
src/tests/signatures.rs
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@ -1,6 +1,7 @@
use pairing::{bls12_381::Bls12, PrimeField, PrimeFieldRepr};
use sapling_crypto::{
jubjub::{FixedGenerators, JubjubEngine}, redjubjub::{PrivateKey, PublicKey, Signature},
jubjub::{FixedGenerators, JubjubEngine},
redjubjub::{PrivateKey, PublicKey, Signature},
};
use super::JUBJUB;

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