Merge pull request #6 from zcash/zip32-arb-keys

Add PrfExpand domain for ZIP 32 arbitrary key derivation
zcash · Oct 22, 2024 · 38e0772 · 38e0772
2 parents c6a00c7 + 2d93fc5
commit 38e0772
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this library adheres to Rust's notion of
 
 ## [Unreleased]
 
+## [0.1.2] - 2024-10-01
+### Added
+- `zcash_spec::PrfExpand::ARBITRARY_ZIP32_CHILD`
+
 ## [0.1.1] - 2024-09-20
 ### Fixed
 - The `std` default feature of `blake2b_simd` is now disabled, to enable no-std

diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "zcash_spec"
-version = "0.1.1"
+version = "0.1.2"
 authors = [
     "Jack Grigg <[email protected]>",
 ]

diff --git a/src/prf_expand.rs b/src/prf_expand.rs
@@ -95,6 +95,7 @@ with_inputs!(a, A);
 impl PrfExpand<([u8; 32], [u8; 4])> {
     pub const SPROUT_ZIP32_CHILD: Self = Self::new(0x80);
     pub const ORCHARD_ZIP32_CHILD: Self = Self::new(0x81);
+    pub const ARBITRARY_ZIP32_CHILD: Self = Self::new(0xAB);
 }
 impl PrfExpand<([u8; 32], [u8; 32])> {
     pub const ORCHARD_DK_OVK: Self = Self::new(0x82);