lib

commit 8329770143ddd719d67f4902026de6b691f6da37
parent d36a3aba66fa2bb0ef58702c1f71c10c891618d2
Author: triesap <tyson@radroots.org>
Date:   Sat, 18 Jul 2026 06:15:19 +0000

blossom: expose verified digest construction

- construct typed hashes from an already verified digest
- retain the canonical lowercase serialization contract
- preserve no-std compatibility for protocol consumers
- cover byte preservation with focused public tests

Diffstat:
M
crates/blossom/src/hash.rs
 | 
13
+++++++++++++

1 file changed, 13 insertions(+), 0 deletions(-)
diff --git a/crates/blossom/src/hash.rs b/crates/blossom/src/hash.rs
@@ -12,6 +12,10 @@ const LOWER_HEX: &[u8; 16] = b"0123456789abcdef";
 pub struct RadrootsBlossomSha256([u8; SHA256_BYTES]);
 
 impl RadrootsBlossomSha256 {
+    pub const fn from_bytes(bytes: [u8; SHA256_BYTES]) -> Self {
+        Self(bytes)
+    }
+
     pub fn digest(bytes: &[u8]) -> Self {
         let digest = Sha256::digest(bytes);
         let mut value = [0_u8; SHA256_BYTES];
@@ -272,6 +276,15 @@ mod tests {
     }
 
     #[test]
+    fn hash_preserves_verified_digest_bytes() {
+        let bytes = [0xabu8; SHA256_BYTES];
+        let hash = RadrootsBlossomSha256::from_bytes(bytes);
+
+        assert_eq!(hash.as_bytes(), &bytes);
+        assert_eq!(hash.to_hex(), "ab".repeat(SHA256_BYTES));
+    }
+
+    #[test]
     fn hash_rejects_wrong_length_case_and_alphabet() {
         for value in [
             "",