Python生成rsa密钥对操作示例

本文实例讲述了Python生成rsa密钥对操作。分享给大家供大家参考,具体如下:

# -*- coding: utf-8 -*-

import rsa

# 先生成一对密钥,然后保存.pem格式文件,当然也可以直接使用

(pubkey, privkey) = rsa.newkeys(1024)

pub = pubkey.save_pkcs1()

pubfile = open('public.pem','w+')

pubfile.write(pub)

pubfile.close()

pri = privkey.save_pkcs1()

prifile = open('private.pem','w+')

prifile.write(pri)

prifile.close()

# load公钥和密钥

message = 'lovesoo.org'

with open('public.pem') as publickfile:

p = publickfile.read()

pubkey = rsa.PublicKey.load_pkcs1(p)

with open('private.pem') as privatefile:

p = privatefile.read()

privkey = rsa.PrivateKey.load_pkcs1(p)

# 用公钥加密、再用私钥解密

crypto = rsa.encrypt(message, pubkey)

message = rsa.decrypt(crypto, privkey)

print message

# sign 用私钥签名认证、再用公钥验证签名

signature = rsa.sign(message, privkey, 'SHA-1')

rsa.verify('lovesoo.org', signature, pubkey)

对文件进行RSA加密解密

from rsa.bigfile import *

import rsa

with open('public.pem') as publickfile:

p = publickfile.read()

pubkey = rsa.PublicKey.load_pkcs1(p)

with open('private.pem') as privatefile:

p = privatefile.read()

privkey = rsa.PrivateKey.load_pkcs1(p)

with open('mysec.txt', 'rb') as infile, open('outputfile', 'wb') as outfile: #加密输出

encrypt_bigfile(infile, outfile, pubkey)

with open('outputfile', 'rb') as infile2, open('result', 'wb') as outfile2: #解密输出

decrypt_bigfile(infile2, outfile2, privkey)

PS:关于加密解密感兴趣的朋友还可以参考本站在线工具:

在线RSA加密/解密工具:

http://tools.jb51.net/password/rsa_encode

文字在线加密解密工具(包含AES、DES、RC4等):

http://tools.jb51.net/password/txt_encode

MD5在线加密工具:

http://tools.jb51.net/password/CreateMD5Password

在线散列/哈希算法加密工具:

http://tools.jb51.net/password/hash_encrypt

在线MD5/hash/SHA-1/SHA-2/SHA-256/SHA-512/SHA-3/RIPEMD-160加密工具:

http://tools.jb51.net/password/hash_md5_sha

在线sha1/sha224/sha256/sha384/sha512加密工具:

http://tools.jb51.net/password/sha_encode

更多关于Python相关内容感兴趣的读者可查看本站专题:《Python加密解密算法与技巧总结》、《Python编码操作技巧总结》、《Python数据结构与算法教程》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》及《Python入门与进阶经典教程》

希望本文所述对大家Python程序设计有所帮助。

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