Signature validation in python. Prefix configuration?

[amrbz]

Hi, Unfortunately can't validate signatures in python with libraries like pynacl (Ed25519). Is it possible to control prefix with this library? Maybe it would solve the problem. Any ideas on that? Thanks.

Python code:

import nacl.signing

def sig_ed():
  message = b'somedata'
  signature = b'2AEB5426A57085F0418BC8AB31A0B3149214916A83C88CF59835099A871E43BCD7E8AD773F4623133247BDE0BF791156C2A38C9D7CB0DDA1C0C4FA2413B4EC07'
  public_key = '25ed5857e12921610ebefd03d508017f0af712bd9a2402e84653a53c067b246e'

  try:
    verify_key = nacl.signing.VerifyKey(public_key, encoder=nacl.encoding.HexEncoder)
    verify_key.verify(message, signature)
  except Exception as error:
    print('error', error)
    return False
  return True

Output:

error Signature was forged or corrupt
False

Similar problems with other curves. In Javascript validation works fine.