Python中rsa模块【sign 加签验签】的使用

最新推荐文章于 2023-08-11 11:44:16 发布

转载最新推荐文章于 2023-08-11 11:44:16 发布 · 1.2k 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/kayb/p/8157556.html

文章标签：

#python #5g

本文通过三个实例展示了RSA加密解密的基本用法，包括公钥加密私钥解密、生成公钥私钥并进行PKCS格式转换、以及加签验签的过程。

安装

pip install rsa

使用一

说明：简单入门使用使用公钥加密 ----------->> 使用私钥进行解密

 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)

简单使用公钥加密私钥解密Code

结果：

PublicKey(105532334855064558871471720144983044056346299365013755733259162501036790378738292019787069868554583994384472397785833870986231336954271316146541465051193038944174617155568148589694230338201718581390254372179722652044582086652863100420287539790025384495993582784568995192512904611505241844854221386155178376113, 65537) PrivateKey(105532334855064558871471720144983044056346299365013755733259162501036790378738292019787069868554583994384472397785833870986231336954271316146541465051193038944174617155568148589694230338201718581390254372179722652044582086652863100420287539790025384495993582784568995192512904611505241844854221386155178376113, 65537, 32731979959395414623501314606818596159930287123192007763400201354327705540818366142579180756185193537297300310203284329394649196427506188005412934223077799695642743507581779745970378384356510585976227244879763737251234324886626484049295170834651908035814868260255049993619457806756461841448318943841949636241, 43780083196928464550236946271732349312696781271723999154597463198120984522796589514105513242991062844313154180440124214418698597690847985597548059444175830087891717, 2410510148652904484317488108869831498999998903827157164423624876033568004965365613594737139603959496839915382306483478406548824172663536589804989)
编码结果 hello word
共钥加密结果 (�������ztJc3�d� ]@�d�/�@L������B�C��1�4�@�0-���7=���teKH��u���ZJ���g��c�R��uAK��k=M9��=�Ɋ'��5:lt��F�f�,q�T�-�>�U�D@
解密结果 hello word

使用二

说明：可以直接生成公钥私钥并进行pkcs格式转换

# -*- 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()

直接生成公钥私钥加密解密案例Code

结果：

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

结果Code

使用三

说明：加签验签眼签失败会抛出异常

 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()

加签验签案例Code

结果：

公钥: -----BEGIN RSA PUBLIC KEY-----
MIGJAoGBAJVqkDkYlOgAY/y8bv/cCtxbob/mPFcF6JtiVuMObVR1hlYTiKiL2RTe
yJLX5d2bGnhU3B59leVZ+oNcjuVS62MB9g+2riTiGN/x1DXeZjs2sEZO5VrFoBF2
U3lNPqRjsgzoFTVqcfUFr4O4IVC0qQiq0E/K6ArEMyB4hrlT9lqlAgMBAAE=
-----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(104923668177873610990710907595183022805319572154432933078574572974445308631826501249509331300185591353458547387639051456660698908681522353691041084812802642434220757729988444016144209396196921306050572227488695529623771584475563512960431878688822219498805751310959855252308213627500243245698594546289080687269, 65537)
加载到的私钥 PrivateKey(104923668177873610990710907595183022805319572154432933078574572974445308631826501249509331300185591353458547387639051456660698908681522353691041084812802642434220757729988444016144209396196921306050572227488695529623771584475563512960431878688822219498805751310959855252308213627500243245698594546289080687269, 65537, 48799583895048072640002733942792219938797105128999957782138815613074560208839336322783983511008392359198162609253184116613130955575041318077675540346134218507517161135334820935121227098159884944307100507857502687571800965611813875228035483634650919449141145666388314983843157846173454492436304190436299120333, 46537660807247476482343721332274423831646783587173026364563572911971952373945006999573837431392498419891616222098787387296980240166205914045002026387442240251772459, 2254596951326214329380524374466508855609079749515632320185208485662792835416443211707235676947903051873284825862592851258869281666513890246996591)
加签结果 [iěu��&T��Q$y֋���p�]\ټnr����(���g:@��bH�윦

转载于:https://www.cnblogs.com/kayb/p/8157556.html