python3 RSA 用私钥对随机密钥进行解密

import base64
from Crypto import Random
from Crypto.Cipher import PKCS1_v1_5 as Cipher_pkcs1_v1_5,AES
from Crypto.PublicKey import RSA
random_generator = Random.new().read

base64不一定要使用

private_key = '-----BEGIN PRIVATE KEY-----\n' +private_key + '\n-----END PRIVATE KEY-----'
rsakey = RSA.importKey(private_key)
cipher = Cipher_pkcs1_v1_5.new(rsakey)
print(decode_base64(encrypted_random_key_to_base64))

random_key = cipher.decrypt(decode_base64(encrypted_random_key_to_base64),random_generator)

或者读取文件

with open('private.pem') as f:
    key = f.read()
    rsakey = RSA.importKey(key)
    cipher = Cipher_pkcs1_v1_5.new(rsakey)
    randomKey = cipher.decrypt(randomKey, random_generator)