fix: require rand feature when generating ecdsa key

identity/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.2.9
+
+- Add `rand` feature gate to ecdsa methods requiring a random number generator.
+  See [PR 5212](https://github.com/libp2p/rust-libp2p/pull/5212).
+
 ## 0.2.8
 
 - Bump `ring` to `0.17.5.

identity/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "libp2p-identity"
-version = "0.2.8"
+version = "0.2.9"
 edition = "2021"
 description = "Data structures and algorithms for identifying peers in libp2p."
 rust-version = "1.73.0" # MUST NOT inherit from workspace because we don't want to publish breaking changes to `libp2p-identity`.

identity/src/ecdsa.rs

@@ -94,6 +94,7 @@ pub struct SecretKey(SigningKey);
 
 impl SecretKey {
     /// Generate a new random ECDSA secret key.
+    #[cfg(feature = "rand")]
     pub fn generate() -> SecretKey {
         SecretKey(SigningKey::random(&mut rand::thread_rng()))
     }