Tests for ed25519 verify.

substrate/wasm-runtime/support/src/lib.rs

@@ -91,13 +91,10 @@ pub fn keccak256(data: &[u8]) -> [u8; 32] {
 }
 
 /// Verify a ed25519 signature.
-pub fn ed25519_verify(sig: &[u8; 64], msg: &[u8], pubkey: &[u8; 32]) -> bool {
-	unsafe {
-		match ext_ed25519_verify(&msg[0], msg.len() as u32, &sig[0], &pubkey[0]) {
-			0 => false,
-			_ => true,
-		}
-	}
+pub fn ed25519_verify(sig: &[u8], msg: &[u8], pubkey: &[u8]) -> bool {
+	sig.len() != 64 || pubkey.len() != 32 || unsafe {
+		ext_ed25519_verify(&msg[0], msg.len() as u32, &sig[0], &pubkey[0])
+	} == 0
 }
 
 pub trait Printable {