通过Anaconda openssl进行格式转换

一、下载及安装Anaconda

二、通过Anaconda的openssl对文件进行操作

1、将xxx.cer和xxxpfx文件转换成xxx.pem格式的文件

openssl pkcs12 -in xxx.pfx -nodes -out xxx.pem 
openssl x509 -inform der -in xxx.cer -out xxx.pem

2、从xxx.pfx中提取密钥对

openssl pkcs12 -in xxx.pfx -nocerts -nodes -out private_pc.key

3、从密钥对中提取私钥(头部格式：-----BEGIN RSA PUBLIC KEY-----）

openssl rsa -in  xxx.key -out private.pem

4、从密钥对提取公钥(头部格式：-----BEGIN RSA PRIVATE KEY-----）

openssl rsa -in private.pem -RSAPublicKey_out -out public.pem

5、从密钥对提取公钥(头部格式：-----BEGIN PUBLIC KEY-----）

openssl rsa -in private.key -pubout -out public.key

三、Python通过RSA加密

import rsa

# 生成密钥
(pubkey, privkey) = rsa.newkeys(1024)

# 保存密钥
with open('public.pem', 'w+') as f:
    f.write(pubkey.save_pkcs1().decode())

with open('private.pem', 'w+') as f:
    f.write(privkey.save_pkcs1().decode())

# 导入密钥
with open('public.pem', 'r') as f:
    pubkey = rsa.PublicKey.load_pkcs1(f.read().encode())

with open('private.pem', 'r') as f:
    privkey = rsa.PrivateKey.load_pkcs1(f.read().encode())

    # 明文
    message = '123123ssss'

    # 公钥加密
    crypto = rsa.encrypt(message.encode(), pubkey)
    # print(crypto)

    # 私钥解密
    message = rsa.decrypt(crypto, privkey).decode()
    print(message)