Python中rsa模块【sign 加签验签】的使用

 1 # -*- coding:utf-8 -*-
 2 import rsa
 3 
 4 
 5 def rsa_encrypt(d_str):
 6     """
 7     生成私钥 和公钥  并接受字符串进行加密 
 8     :param d_str: 字符串
 9     :return: 返回加密结果及私钥 
10     """
11     # 生成公钥和私钥
12     pubkey, privkey = rsa.newkeys(1024)
13     print pubkey, privkey
14     # 将字符串进行编码
15     content = d_str.encode(‘utf-8‘)
16     print ‘编码结果‘, content
17     # 公钥加密
18     crypto = rsa.encrypt(content, pubkey)
19     print ‘共钥加密结果‘, crypto
20     return crypto, privkey
21 
22 
23 def rsa_decrypt(crypto, privkey):
24     """
25     解密
26     :param crypto: 公钥加密结果
27     :param privkey: 私钥
28     :return: 
29     """
30     # 解密
31     content = rsa.decrypt(crypto, privkey)
32     # 解码
33     content = content.decode(‘utf-8‘)
34     print ‘解密结果‘, content
35 
36 
37 if __name__ == ‘__main__‘:
38     a = rsa_encrypt(‘hello word‘)
39     rsa_decrypt(*a)

# -*- coding:utf-8 -*-
import rsa
import base64

def generate_pubkey_privkey():
    """
    生成公钥和私钥
    :return:
    """
    public_key, private_key = rsa.newkeys(1024)  # 创建

    print ‘公钥:‘,
    pub_pkcs = public_key.save_pkcs1()
    print pub_pkcs
    print ‘私钥:‘,
    priv_pkcs = private_key.save_pkcs1()
    print priv_pkcs

    # 假设以上得到的公钥及私钥 以下演示加密解密过程

    mess = ‘hello word‘
    print ‘加密前数据‘, mess

    # 加载公钥私钥
    public_key = rsa.PublicKey.load_pkcs1(pub_pkcs)
    private_key = rsa.PrivateKey.load_pkcs1(priv_pkcs)
    print ‘加载到的公钥‘,
    print public_key
    print ‘加载到的私钥‘,
    print private_key

    result = rsa.encrypt(mess, public_key)
    print ‘加密结果‘,
    content = base64.encodestring(result)
    print content

    result = rsa.decrypt(base64.decodestring(content), private_key)
    print ‘解密结果‘,
    print result

if __name__ == ‘__main__‘:
    generate_pubkey_privkey()

公钥: -----BEGIN RSA PUBLIC KEY-----
MIGJAoGBALti7dL+esfzMi6Z123+tZ/RkyznU7ugsrkLZuoyN+QOggU5pYsXH7bY
deF7mQySmW5iMSuBpbBbpRxJ319J5UTKceLaO/L6ov3+eIovwlIHnGX5pd8QzlSV
3RUEWy8cwYistgDNBvDEa79pJRXlH/1O5W+lvzgNoHWH+/fmcgitAgMBAAE=
-----END RSA PUBLIC KEY-----

私钥: -----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

加密前数据 hello word
加载到的公钥 PublicKey(131587234096741920779175642912883844559666214692610055570867202760447720434104757662756227268149385880941310691539830771748383700645819307242895140430520957795475529716183046516129032552194937247719617787028990120331064744900637723993694355860352548744617464179308616135644675215125455378152511253328774170797, 65537)
加载到的私钥 PrivateKey(131587234096741920779175642912883844559666214692610055570867202760447720434104757662756227268149385880941310691539830771748383700645819307242895140430520957795475529716183046516129032552194937247719617787028990120331064744900637723993694355860352548744617464179308616135644675215125455378152511253328774170797, 65537, 123258750232157251243004921537132098412703499607315542387353200638740331564295847660999771667369923094513116591283376890105765094510676433958437022917270147537132887314867013151363553679791541930382779949512171824652676794193139573303520889566550757298978628386029678563821858198700170484444076794153827768833, 42433662666258863461978927611251897319389836041413838112011034385202248177081665970527935082090355234493146174781377648518029689179287762497596881845967337929118081, 3101010514498281571972365602515998884303887562860511295373719676102937811331469329282673274291582789827470545355335918023460154317717884842177837)
加密结果 fbMjnlbTtWzK+rnQ+Fvx/Z8F7u+3bu5oXBMBG0fNOQ93jpE755Ir+EIeXvE/Rkg57y8VRobkFMDh
OTHVfj1RZ2ZLlKj8Uphy1dA40Hr1AHZ4shjGxwlWivNMtfiAs6ksD0jLhABlwapTf6jl9mkSZw9W
7Kah+3ca/XMYNVKXNtU=

解密结果 hello word

 1 # -*- coding:utf-8 -*-
 2 import rsa
 3 
 4 def jia_qian_demo():
 5     """
 6     加签验签
 7     :return:
 8     """
 9     public_key, private_key = rsa.newkeys(1024)  # 创建
10 
11     print ‘公钥:‘,
12     pub_pkcs = public_key.save_pkcs1()
13     print pub_pkcs
14     print ‘私钥:‘,
15     priv_pkcs = private_key.save_pkcs1()
16     print priv_pkcs
17 
18     # 假设以上得到的公钥及私钥 一下演示加签验签
19 
20     mess = ‘hello word‘
21     print ‘加密前数据‘, mess
22 
23     # 加载公钥私钥
24     public_key = rsa.PublicKey.load_pkcs1(pub_pkcs)
25     private_key = rsa.PrivateKey.load_pkcs1(priv_pkcs)
26     print ‘加载到的公钥‘,
27     print public_key
28     print ‘加载到的私钥‘,
29     print private_key
30 
31     mess = ‘重要信息不可泄露‘
32     result = rsa.sign(mess, private_key, ‘SHA-1‘)
33     print ‘加签结果‘,
34     print result
35 
36     result = rsa.verify(mess, result, public_key)  # 验签失败抛出异常
37     print ‘验签结果‘,
38     print result
39 
40 if __name__ == ‘__main__‘:
41     jia_qian_demo()