找到用于解密带有python函数的消息的密钥

时间:2016-11-28 16:32:04

标签: python encryption encoding cryptography rsa

有一条消息:0x1a67cad23ff2c5752f3d652d302a46427a27d5017a8064b32329ec1871L 和用于加密的python代码:

import codecs

def bytes_to_long(data):
    return int(data.encode("hex"), 16)

def rsa_encrypt(msg, e, n):
    return pow(bytes_to_long(msg), e, n)

def main():
    n = 29819592777931214269172453467810429868925511217482600306406141434158090
    e = 65537
    secret = "" #find this
    with codecs.open("encrypted.txt", "w") as output_file:
        output_file.write(hex(rsa_encrypt(secret, e, n)))

main()

目标是找到用于生成secret的变量0x1a67cad23ff2c5752f3d652d302a46427a27d5017a8064b32329ec1871L 我迈出了一小步:

>>> s = '0x1a67cad23ff2c5752f3d652d302a46427a27d5017a8064b32329ec1871'
>>> int(s, 16)
>>> `711889215226322184943193282945958342309634097071492255020318494300273L`

但我不确定我是不是很好。我想有一些关于codecs模块或encode函数属性的技巧,但是我被卡住了,不知道如何继续前进。

0 个答案:

没有答案