Merge pull request #94 from zjkmxy/master

Fix Ed25519 signature

Author: zjkmxy

src/ndn/security/signer/ed25519_signer.py

@@ -45,10 +45,7 @@ def get_signature_value_size(self):
 
     def write_signature_value(self, wire: VarBinaryStr, contents: list[VarBinaryStr]) -> int:
         # Copying is needed as cryptography library only support bytes
-        h = SHA512.new()
-        for blk in contents:
-            h.update(blk)
         signer = eddsa.new(self.key, 'rfc8032')
-        signature = signer.sign(h)
+        signature = signer.sign(b''.join(contents))
         wire[:] = signature
         return len(signature)

src/ndn/security/validator/known_key_validator.py

@@ -116,11 +116,8 @@ def _verify(cls, pub_key_bits, sig_ptrs) -> bool:
 
 def verify_ed25519(pub_key: ECC.EccKey, sig_ptrs: SignaturePtrs) -> bool:
     verifier = eddsa.new(pub_key, 'rfc8032')
-    h = SHA512.new()
-    for content in sig_ptrs.signature_covered_part:
-        h.update(content)
     try:
-        verifier.verify(h, bytes(sig_ptrs.signature_value_buf))
+        verifier.verify(b''.join(sig_ptrs.signature_covered_part), bytes(sig_ptrs.signature_value_buf))
         return True
     except ValueError:
         return False