非对称加密的应用

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原创 2022-02-09 19:00:10 3.8k 阅读 AI 写同款· GEO 优化 ›

聊聊对称/非对称加密在HTTPS中的应用目前常用的加密算法主要分成三类：对称加密算法 非对称加密算法消息摘要算法在互联网中，信息防护主要涉及两个方面：信息窃取和信息篡改。对称/非对称加密算法能够避免信息窃取，而消息摘要算法能够避免信息篡改。对称加密算法发送方和接收方需要持有同一把密钥，发送消息和接收消息均使用该密钥。相对于非对称加密，对称加密具有更高的加解密速度，但双方都需要事先知道密钥，密钥在传输过程... 阅读详情

第一步获取非对称秘钥：

可以通过网站获取：在线RSA加密解密，RSA公钥私钥加密解密-ME2在线工具

第二种，代码生成：利用Python Crypto生成RSA公钥私钥 - it610.com

第二步：对应的加解密：

from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5 as Cipher_pkcs1_v1_5
from Crypto.Signature import PKCS1_v1_5 as Signature_pkcs1_v1_5
import base64

# 私钥
private_key = '''-----BEGIN PRIVATE KEY-----
MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQC2LlOlPEUU6R/I
qTjeoBGfDTKbQu93ZAjlp0phNq9b2CwDLxO79Tb6Ns0kWYR/UK/zLE2UoxgTd/Ky
fQvbTrS9VHpSwFAycYZAOtkQOnBsyfHhiFiDl3jN52lNvmE8sq7j5qas+kbyTLf8
+7wEUxKSgSCkIueZ46gK9wLG8NHEIpbo6dJQ5FYsc4Fz66hWQPFHm9o3tTMROGyh
JK/TXNbqGgJDEfHswXtB+yPS4u8/xdOei8OFts8O9sAjvhtRaL9FAM3Ow54yLhuG
2AdTm78/I+cKcDv+tmi2mPm1OpFCum8v6x8HfdoKyAK3hEINmZXg0Xzz+Yy4M4jF
VsR/A+ylAgMBAAECggEBAIiMJpOlnd2zcegztfVfInYFLVYkEFp7NxPylJRSqZL8
btigE3mArQlTw+Sn1+CZOJfaL/flWmlVMSpJAXcKAfwacmjNzg5Q+p/vu7wnIRbZ
Mhup1zYidSBXf50OwdD92Inm2iyyljSL/id3AxB2t2fpsu5zXwYAFXbKd2FnJMKN
KXzJjrd1mu/LyMWrbcbeCyM2HGNJ3700yD58TQKBcn5ueo1NlW6w/xsP4SZMPNWV
3fnrOng+G43pA0hT7PRdH1SNsVIxhgKuOJ4hylE7zLX1a+dH6SisaeMMs4B6Sb3u
Y+Z5E4yaUeJtSUAL7A44kFfypw/Is1eHvMZ+qB/BXWECgYEA64tdejZuqtHnzs4o
kDn50ysWspVJ7sYeXCj6TcxV8Dcj6fZhBpsLXMjHWfVf/WpDGLyVnLL1XTr0VuIU
OPCnwVfSwNPg2yfPU8NIekFvFzUUbjo4WCRgNLu6SIQA5lkKOpP27j+aVHo8D5t7
MKUu4hxV6R5RieLo/Jx71CiouGkCgYEAxgCVRjThgZHuWHvuvTqK6QzyTyBDPHW6
6yx0GUTe8ZThRksTJN1NaywstHB7fcmtN6kPW7VVQfbsoCYSfDk1K8JYb/2wwVx+
Zc3wrtJCLkFi5SIasTgMkgLEhDsPiSaciFL8cL/6a0dOkEujMNKhsToOkOND29QE
5yyS9o7Pqt0CgYBnbhksEz7hT68Exs5VFsA3FBKxdJC0gtbODUhsZS/PfccNc50D
c423voqbW/48ny67bAQefQ71U2/7vua2Yian5dKrzd5NHdwSogvvc1A+1pYUGQio
28BLJ6wTL7PdcnflZRfnYpJ4SfyZteKQZ9iAfYTUCvYvIC7Czkwpy3jbEQKBgA+X
simyNmQGwvdS4y0htBjAPUC/8KuNNegZOxdWVhw+NjNb7CkGCHe9JdQb242/WRW+
CYiWUh18vYurE9+WfbpxdpdzKf1ANG/99Ms/oZiU653RvrpgCJVjBGjJYeLSGJef
uWODqsvR9LzmR/arT7JuOQFt9EUWgEBYQUaLXo09AoGBAMfOFJyyHuWVr4X1yW1r
JUCSVz/K+MSa4qHm7mt1/jw4kFZ66/tZwd6iV5JR5XHYAoM3ywFSB6mVRrM0c3Yw
0dmsyWupqqIV6sv72VWpax9HaC30rvrPouEW3c63B3dFolEsZXJAZxdfzrAi7PhX
vMj0y2a7dnRPW6N7jK/mWwpm
-----END PRIVATE KEY-----
'''

# 公钥
public_key = '''-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAti5TpTxFFOkfyKk43qAR
nw0ym0Lvd2QI5adKYTavW9gsAy8Tu/U2+jbNJFmEf1Cv8yxNlKMYE3fysn0L2060
vVR6UsBQMnGGQDrZEDpwbMnx4YhYg5d4zedpTb5hPLKu4+amrPpG8ky3/Pu8BFMS
koEgpCLnmeOoCvcCxvDRxCKW6OnSUORWLHOBc+uoVkDxR5vaN7UzEThsoSSv01zW
6hoCQxHx7MF7Qfsj0uLvP8XTnovDhbbPDvbAI74bUWi/RQDNzsOeMi4bhtgHU5u/
PyPnCnA7/rZotpj5tTqRQrpvL+sfB33aCsgCt4RCDZmV4NF88/mMuDOIxVbEfwPs
pQIDAQAB
-----END PUBLIC KEY-----'''
def rsa_encrypt(message):
    """校验RSA加密 使用公钥进行加密"""
    cipher = Cipher_pkcs1_v1_5.new(RSA.importKey(public_key))
    cipher_text = base64.b64encode(cipher.encrypt(message.encode()))
    return cipher_text


def rsa_decrypt(text):
    """校验RSA加密 使用私钥进行解密"""
    cipher = Cipher_pkcs1_v1_5.new(RSA.importKey(private_key))
    retval = cipher.decrypt(base64.b64decode(text), 'ERROR').decode('utf-8')
    return retval
if __name__ == '__main__':
    enc_result = rsa_encrypt("hello,你好")
    dec_result = rsa_decrypt(enc_result)
    print(dec_result)

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