fix/update multi hash

.github/workflows/rust.yml

@@ -11,14 +11,14 @@ env:
 
 jobs:
   msrv:
-    name: Verify MSRV (1.96)
+    name: Verify MSRV (1.99)
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install Rust Toolchain (1.96)
-        uses: dtolnay/rust-toolchain@1.96.0
+      - name: Install Rust Toolchain (1.99)
+        uses: dtolnay/rust-toolchain@1.99.0
 
       - name: Check
         run: cargo check --all-features

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.2.0] - 2026-10-08
+
+### Changed
+
+- Migrated the `FingerprintView` implementation bodies (30 key views) and the custom-codec test builder from the removed `Builder::new_from_bytes` API to the streaming shape `Builder::new(codec)?` + `update(bytes)` + `output_len(32)` + `try_build()`. The value 32 preserves the 32-byte fingerprints multi-hash 1.x produced. Requirement `multi-hash` raised 1.1 → 2.0. The crate requires multi-hash 2.0.0, which declares `rust-version = "1.99"`. No public API changes.
+- Raised `rust-version` from 1.96 to 1.99 and applied clippy 0.1.99 fixes.
+
 ## [2.1.1] - 2026-10-07
 
 ### Changed
@@ -265,6 +272,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 - Major dependency updates: ed25519-dalek 3, blsful 4, elliptic-curve 0.14, vsss-rs 6, ssh-key 0.7.
 - Initial published release on crates.io as `multi-key`.
 
+[2.2.0]: https://github.com/cryptidtech/multi-key/compare/v2.1.1...v2.2.0
 [2.1.1]: https://github.com/cryptidtech/multi-key/compare/v2.1.0...v2.1.1
 [2.1.0]: https://github.com/cryptidtech/multi-key/compare/v2.0.0...v2.1.0
 [1.1.1]: https://github.com/cryptidtech/multi-key/compare/v1.1.0...v1.1.1

Cargo.toml

@@ -1,8 +1,8 @@
 [package]
 name = "multi-key"
-version = "2.1.1"
+version = "2.2.0"
 edition = "2024"
-rust-version = "1.96"
+rust-version = "1.99"
 authors = ["Dave Grantham <dwg@linuxprogrammer.org>"]
 description = "Multikey self-describing cryptographic key data"
 repository = "https://github.com/cryptidtech/multi-key.git"
@@ -52,11 +52,11 @@ mceliece348864 = { version = "1.0", optional = true }
 ml-dsa = "0.1.1"
 ml-kem = "0.3"
 multi-base = { version = "1.0", default-features = false }
-multi-codec = "1.5"
-multi-hash = "1.1"
-multi-sig = "1.5"
-multi-trait = { version = "1.0", default-features = false }
-multi-util = "1.1"
+multi-codec = "1.6"
+multi-hash = "2.0"
+multi-sig = "1.6"
+multi-trait = { version = "1.1", default-features = false }
+multi-util = "1.2"
 p256 = { version = "0.14", features = ["ecdsa", "ecdh"] }
 p384 = { version = "0.14", features = ["ecdsa", "ecdh"] }
 p521 = { version = "0.14", features = ["ecdsa", "ecdh"] }
@@ -83,31 +83,31 @@ sntrup = "0.4.0"
 ssh-encoding = "0.3"
 subtle = "2"
 thiserror = { version = "2.0" }
-typenum = "1.17"
+typenum = "1.20"
 unsigned-varint = { version = "0.8", features = ["std"] }
 vsss-rs = "6.0"
 x25519-dalek = { version = "3.0", features = ["static_secrets", "getrandom"] }
 zeroize = "1"
 # Lamport support (feature-gated, default-enabled)
 lamport_signature_plus = { version = "0.5.0", optional = true }
 sha3 = { version = "0.12", optional = true }
-blake2 = { version = "0.11.0-rc.6", optional = true }
+blake2 = { version = "0.11.0", optional = true }
 shake = { version = "0.1", optional = true }
 # XMSS support (feature-gated, default-enabled)
 xmss = { version = "0.1.0-pre.0", optional = true }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-blsful = { version = "4.0.0", default-features = false, features = ["rust"] }
+blsful = { version = "4.1.0", default-features = false, features = ["rust"] }
 getrandom_02 = { package = "getrandom", version = "0.2", features = ["js"] }
 ssh-key = { version = "0.7.0-rc.11", default-features = false, features = ["alloc", "ecdsa", "ed25519", "p256", "p384", "p521"] }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-blsful = { version = "4.0.0", default-features = false, features = ["blst"] }
+blsful = { version = "4.1.0", default-features = false, features = ["blst"] }
 ssh-key = { version = "0.7.0-rc.11", default-features = false, features = ["alloc", "ecdsa", "ed25519", "p256", "p384", "p521"] }
 
 [dev-dependencies]
 criterion = { version = "0.8", features = ["html_reports"] }
-proptest = "1.4"
+proptest = "1.11"
 serde_json = "1.0"
 serde_test = "1.0"
 

src/error.rs

@@ -450,7 +450,7 @@ mod tests {
     #[test]
     fn test_error_display() {
         let err = Error::MissingSigil;
-        assert!(!err.to_string().is_empty());
+        assert_ne!(err.to_string(), "");
     }
 
     #[test]

src/views/bls12381.rs

@@ -370,7 +370,10 @@ impl<'a> FingerprintView for View<'a> {
                 kd.key_bytes()?
             };
             // hash the key bytes using the given codec
-            Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+            let mut b = mh::Builder::new(codec)?;
+            b.update(bytes);
+            b.output_len(32);
+            Ok(b.try_build()?)
         }
     }
 }

src/views/bls12381_g1_fndsa512.rs

@@ -125,7 +125,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/bls12381_g1_mayo1.rs

@@ -121,7 +121,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/bls12381_g1_mayo2.rs

@@ -121,7 +121,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/bls12381_g1_mldsa65.rs

@@ -132,7 +132,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/chacha20.rs

@@ -335,6 +335,9 @@ impl<'a> FingerprintView for View<'a> {
             kd.key_bytes()?
         };
         // hash the key bytes using the given codec
-        Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(bytes);
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }

src/views/classic_mceliece.rs

@@ -141,7 +141,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 
@@ -336,7 +339,7 @@ mod tests {
                 .fingerprint(Codec::Sha3256)
                 .unwrap();
             let fp_bytes: Vec<u8> = fp.into();
-            assert!(!fp_bytes.is_empty());
+            assert_ne!(fp_bytes, Vec::<u8>::new());
         }
     }
 

src/views/ed25519.rs

@@ -157,7 +157,10 @@ impl<'a> FingerprintView for View<'a> {
                 kd.key_bytes()?
             };
             // hash the key bytes using the given codec
-            Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+            let mut b = mh::Builder::new(codec)?;
+            b.update(bytes);
+            b.output_len(32);
+            Ok(b.try_build()?)
         }
     }
 }

src/views/ed25519_fndsa512.rs

@@ -132,7 +132,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/ed25519_mayo2.rs

@@ -131,7 +131,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 
@@ -350,7 +353,7 @@ mod tests {
         let fp1_bytes: Vec<u8> = fp1.into();
         let fp2_bytes: Vec<u8> = fp2.into();
         assert_eq!(fp1_bytes, fp2_bytes);
-        assert!(!fp1_bytes.is_empty());
+        assert_ne!(fp1_bytes, Vec::<u8>::new());
     }
 
     #[test]

src/views/ed25519_mldsa65.rs

@@ -138,7 +138,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/fn_dsa.rs

@@ -90,7 +90,10 @@ impl<'a> FingerprintView for View<'a> {
                 kd.key_bytes()?
             };
             // hash the key bytes using the given codec
-            Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+            let mut b = mh::Builder::new(codec)?;
+            b.update(bytes);
+            b.output_len(32);
+            Ok(b.try_build()?)
         }
     }
 }

src/views/frodokem.rs

@@ -218,7 +218,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/lamport.rs

@@ -549,7 +549,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/lamport_merkle.rs

@@ -636,7 +636,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/mayo.rs

@@ -246,7 +246,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/ml_dsa.rs

@@ -231,7 +231,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 

src/views/ml_kem.rs

@@ -144,7 +144,10 @@ impl<'a> FingerprintView for View<'a> {
         } else {
             self.key_bytes()?
         };
-        Ok(mh::Builder::new_from_bytes(codec, pub_bytes.as_slice())?.try_build()?)
+        let mut b = mh::Builder::new(codec)?;
+        b.update(pub_bytes.as_slice());
+        b.output_len(32);
+        Ok(b.try_build()?)
     }
 }
 
@@ -367,7 +370,7 @@ mod tests {
                 .fingerprint(Codec::Sha3256)
                 .unwrap();
             let fp_bytes: Vec<u8> = fp.into();
-            assert!(!fp_bytes.is_empty());
+            assert_ne!(fp_bytes, Vec::<u8>::new());
         }
     }
 

src/views/nist_p.rs

@@ -178,7 +178,10 @@ impl<'a> FingerprintView for View<'a> {
                 let kd = dispatch_data_view(self.mk)?;
                 kd.key_bytes()?
             };
-            Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+            let mut b = mh::Builder::new(codec)?;
+            b.update(bytes);
+            b.output_len(32);
+            Ok(b.try_build()?)
         }
     }
 }

src/views/rsa.rs

@@ -237,7 +237,10 @@ impl<'a> FingerprintView for View<'a> {
                 let kd = dispatch_data_view(self.mk)?;
                 kd.key_bytes()?
             };
-            Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+            let mut b = mh::Builder::new(codec)?;
+            b.update(bytes);
+            b.output_len(32);
+            Ok(b.try_build()?)
         }
     }
 }

src/views/secp256k1.rs

@@ -172,7 +172,10 @@ impl<'a> FingerprintView for View<'a> {
                 kd.key_bytes()?
             };
             // hash the key bytes using the given codec
-            Ok(mh::Builder::new_from_bytes(codec, bytes)?.try_build()?)
+            let mut b = mh::Builder::new(codec)?;
+            b.update(bytes);
+            b.output_len(32);
+            Ok(b.try_build()?)
         }
     }
 }