pgpy key.DECRIPK未返回解密文本

Question

我有一段代码，可以打开一个pgp加密文件，使用私钥对其进行解密，然后将解密后的消息输出到一个文本文件。我已经使用GnuPG确认私钥能够对原始消息和输出消息进行解密，因此我相信消息和密钥加载正确，消息正在解密，但由于某种原因，输出正在重新加密。我是python新手，所以我可能忽略了一些简单的东西

    key, _ = pgpy.PGPKey.from_file(key_file.name) 
    encrypted_message = pgpy.PGPMessage.from_file(input_file.name)
    decrypted_message = key.decrypt(encrypted_message)
    str_decrypted_message = str(decrypted_message)
    output_file.write(str_decrypted_message)

编辑 这是完整的代码，包括生成密钥的函数，以防解密函数之外出现错误

def pgp_gen(userid, pgpcomment, mail, priv_key_file='priv_key_file.acs', pub_key_file='pub_key_file.gpg'):
    key = pgpy.PGPKey.new(PubKeyAlgorithm.RSAEncryptOrSign, 4096)
    uid = pgpy.PGPUID.new(userid, comment=pgpcomment, email=mail)
    key.add_uid(uid, usage={KeyFlags.Sign, KeyFlags.EncryptCommunications, KeyFlags.EncryptStorage},
    hashes=[HashAlgorithm.SHA256, HashAlgorithm.SHA384, HashAlgorithm.SHA512, HashAlgorithm.SHA224],
    ciphers=[SymmetricKeyAlgorithm.AES256, SymmetricKeyAlgorithm.AES192, SymmetricKeyAlgorithm.AES128],
    compression=[CompressionAlgorithm.ZLIB, CompressionAlgorithm.BZ2, CompressionAlgorithm.ZIP, CompressionAlgorithm.Uncompressed])
    subkey = pgpy.PGPKey.new(PubKeyAlgorithm.RSAEncryptOrSign, 4096)
    key.add_subkey(subkey, usage={KeyFlags.Authentication})
    keystr = str(key)
    pubkeystr = str(key.pubkey)
    tmp_file = open(pub_key_file, 'w')
    tmp_file.write(pubkeystr)
    tmp_file.close()
    tmp_file = open(priv_key_file, 'w')
    tmp_file.write(keystr)
    tmp_file.close()
    sys.exit()
def pgp_en(encrypt, input_file, output_file, key_file):
    if(encrypt):
        key, _ = pgpy.PGPKey.from_file(key_file.name)
        file_message = pgpy.PGPMessage.new(input_file.name, file=True)
        encrypted_file_message = key.encrypt(file_message)
        output_file.write(str(encrypted_file_message))
        sys.exit()
    else:
        key, _ = pgpy.PGPKey.from_file(key_file.name)
        encrypted_message = pgpy.PGPMessage.from_file(input_file.name)
        decrypted_message = key.decrypt(encrypted_message)
        str_decrypted_message = str(decrypted_message)
        output_file.write(str_decrypted_message)
        sys.exit()

Answer 1

对于任何一个偶然发现这一点的人，我发现了我做错了什么This答案对我有用。看来，转换

str_decrypted_message = str(decrypted_message)

到

str_decrypted_message = decrypted_message.message 

解决了我的问题