lms: convert to hybrid-array (#865)

.github/workflows/dsa.yml

@@ -24,7 +24,7 @@ jobs:
           - thumbv7em-none-eabi
           - wasm32-unknown-unknown
         toolchain:
-          - 1.72.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
@@ -42,7 +42,7 @@ jobs:
           - macos-latest
           - windows-latest
         toolchain:
-          - 1.72.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     runs-on: ${{ matrix.platform }}
     steps:

.github/workflows/ecdsa.yml

@@ -26,7 +26,7 @@ jobs:
           - thumbv7em-none-eabi
           - wasm32-unknown-unknown
         rust:
-          - 1.73.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
@@ -42,7 +42,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.73.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4

.github/workflows/lms.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.73.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4

.github/workflows/rfc6979.yml

@@ -24,7 +24,7 @@ jobs:
           - thumbv7em-none-eabi
           - wasm32-unknown-unknown
         rust:
-          - 1.72.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4
@@ -39,7 +39,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.72.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4

.github/workflows/slh-dsa.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - 1.75.0 # MSRV
+          - 1.81.0 # MSRV
           - stable
     steps:
       - uses: actions/checkout@v4

.github/workflows/workspace.yml

@@ -29,6 +29,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: 1.75.0
+          toolchain: 1.81.0
           components: clippy
       - run: cargo clippy --all-features -- -D warnings

dsa/Cargo.toml

@@ -13,7 +13,7 @@ homepage = "https://github.com/RustCrypto/signatures/tree/master/dsa"
 repository = "https://github.com/RustCrypto/signatures"
 categories = ["cryptography", "no-std"]
 keywords = ["crypto", "nist", "signature"]
-rust-version = "1.72"
+rust-version = "1.81"
 
 [dependencies]
 digest = "=0.11.0-pre.9"

ecdsa/Cargo.toml

@@ -14,7 +14,7 @@ readme = "README.md"
 categories = ["cryptography", "no-std"]
 keywords = ["crypto", "ecc", "nist", "secp256k1", "signature"]
 edition = "2021"
-rust-version = "1.73"
+rust-version = "1.81"
 
 [dependencies]
 elliptic-curve = { version = "0.14.0-rc.1", default-features = false, features = ["digest", "sec1"] }

ed25519/src/pkcs8.rs

@@ -30,10 +30,7 @@ pub use pkcs8::der::{
 use core::fmt;
 
 #[cfg(feature = "pem")]
-use {
-    alloc::string::{String, ToString},
-    core::str,
-};
+use core::str;
 
 #[cfg(feature = "zeroize")]
 use zeroize::Zeroize;
@@ -323,10 +320,13 @@ impl str::FromStr for PublicKeyBytes {
 }
 
 #[cfg(feature = "pem")]
-impl ToString for PublicKeyBytes {
-    fn to_string(&self) -> String {
-        self.to_public_key_pem(Default::default())
-            .expect("PEM serialization error")
+impl fmt::Display for PublicKeyBytes {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str(
+            &self
+                .to_public_key_pem(Default::default())
+                .expect("PEM serialization error"),
+        )
     }
 }