diff options
| -rw-r--r-- | src/lib.rs | 8 | ||||
| -rw-r--r-- | src/test.rs | 3 |
2 files changed, 11 insertions, 0 deletions
@@ -253,6 +253,14 @@ impl Hash { Self(bytes) } + /// The raw bytes of the `Hash`, as a slice. Useful for serialization. Note that byte arrays + /// don't provide constant-time equality checking, so if you need to compare hashes, prefer + /// the `Hash` type. + #[inline] + pub const fn as_slice(&self) -> &[u8] { + self.0.as_slice() + } + /// Create a `Hash` from its raw bytes representation as a slice. /// /// Returns an error if the slice is not exactly 32 bytes long. diff --git a/src/test.rs b/src/test.rs index 771ed74..8b6b292 100644 --- a/src/test.rs +++ b/src/test.rs @@ -756,6 +756,9 @@ fn test_hash_conversions() { let hash4 = crate::Hash::from_slice(slice1).expect("correct length"); assert_eq!(hash1, hash4); + let slice2 = hash1.as_slice(); + assert_eq!(slice1, slice2); + assert!(crate::Hash::from_slice(&[]).is_err()); assert!(crate::Hash::from_slice(&[42]).is_err()); assert!(crate::Hash::from_slice([42; 31].as_slice()).is_err()); |