def verify_ed25519(pub_key: Ed25519PublicKey, sig_ptrs: SignaturePtrs) -> bool:
c = b''.join(bytes(blk) for blk in sig_ptrs.signature_covered_part)
try:
pub_key.verify(bytes(sig_ptrs.signature_value_buf), c)
return True
except InvalidSignature:
return False
def validate_recipient_signature(self, cmd: PaymentCommand,
public_key: Ed25519PublicKey) -> None:
msg = cmd.travel_rule_metadata_signature_message(self.hrp)
try:
public_key.verify(bytes.fromhex(cmd.payment.recipient_signature),
msg)
except (ValueError, InvalidSignature) as e:
raise command_error(ErrorCode.invalid_recipient_signature, str(e),
"command.payment.recipient_signature") from e
def verify(public_key: Ed25519PublicKey, signature: bytes,
data: bytes) -> bool:
""" Verifies that the passed public key was used to create the signature for passed data.
Args:
public_key (Ed25519PublicKey): Public key to use for verification.
signature (bytes): Signature to verify
data (bytes): Signed data.
Returns:
bool: True if signature is correct.
"""
try:
public_key.verify(signature, data)
except:
return False
return True
def get_eddsa_verifier(pub_key: ed25519.Ed25519PublicKey):
return Verifier(lambda: pub_key.verify(signature, message))
