python rsa 生成公钥私钥加解密

# -*- 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)
print(pubkey)
print(privkey)

pub = pubkey.save_pkcs1()
pubfile = open(public.pem, wb)
pubfile.write(pub)
pubfile.close()

pri = privkey.save_pkcs1()
prifile = open(private.pem, wb)
prifile.write(pri)
prifile.close()

# load公钥和密钥
message = lovesoo.org
with open(public.pem, "rb") as publickfile:
    p = publickfile.read()
    pubkey = rsa.PublicKey.load_pkcs1(p)
    print(pubkey)
with open(private.pem, "rb") as privatefile:
    p = privatefile.read()
    privkey = rsa.PrivateKey.load_pkcs1(p)
    print(privkey)
# 用公钥加密、再用私钥解密
crypto = rsa.encrypt(message.encode(utf-8), pubkey)
message = rsa.decrypt(crypto, privkey)
message = message.decode(utf-8)
print (message)

# sign 用私钥签名认证、再用公钥验证签名
signature = rsa.sign(message.encode(utf-8), privkey, SHA-1)
method_name = rsa.verify(lovesoo.org.encode(utf-8), signature, pubkey)
print(method_name)