Special characters %% decrypting to only one %

[mateen001]

Hi Team,

We use AWS KMS(Python) to encrypt the password and this library to decrypt the password.

When we try to decrypt the password, one Special character (%) is missing the password.

As shown in the below example: could you please check

Actual password = abc7Kq3&o&uz%%fI&2xyz
Decrypted password = abc7Kq3&o&uz%fI&2xyz

We use Python to encrypt and Decrypt, which is working fine:
Here are the two python functions to encrypt and decrypt.

def encrypt(self, key_alias, value):
kms_client = self.__kms_client()

response = kms_client.encrypt(
    KeyId=key_alias,
    Plaintext=str.encode(value),
)
return base64.b64encode(response['CiphertextBlob']).decode('utf-8')

def decrypt(self, encrypted_key: str) -> str:
kms_client = self.__kms_client()
base64_encrypted_key = base64.b64decode(encrypted_key)
decrypted_value: str = kms_client.decrypt(CiphertextBlob=base64_encrypted_key).get('Plaintext').decode('utf-8')
return decrypted_value

Regards
Abdul Mateen