Question

库

create library pycryptodome
language plpythonu
from 's3://aws_python/library/pycryptodome/pycryptodome.zip'
credentials 'aws_iam_role'
region as 'aws-region';

功能

CREATE OR REPLACE FUNCTION test.aes_encrypt(input varchar(max))
RETURNS varchar(max)
STABLE
AS 
'
    if input is None:
       return None
    import pycryptodome
    encrypt=True
    secret_key = b''abcdefghijklmnop''
    remainder = len(secret_key) % 16
    modified_key = secret_key.ljust(len(secret_key) + (16 - remainder))[:32]
    remainder = len(input) % 16
    modified_text = input.ljust(len(input) + (16 - remainder))
    cipher = pycryptodome.AES.new(modified_key, pycryptodome.AES.MODE_ECB)
    return base64.b64encode(cipher.encrypt(modified_text)).strip()
'
LANGUAGE plpythonu;

我已经在python中测试了此代码，并且可以正常工作。这里函数创建成功，但是当我使用test.aes_encrypt函数时选择test.aes_encrypt（'testing'）然后抛出错误：

没有名为Crypto.Cipher._mode_ecb的模块。

请告知。

Answer 1

您需要使用import Crypto导入pycryptodome

Redshift UDF AES ENCRYPT-没有名为Crypto.Cipher._mode_ecb的模块

1 个答案: