python rsa 加密文件_Python RSA 加密

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

import rsa

# 生成密钥

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

# =================================

# 场景〇：密钥保存导入

# =================================

# 保存密钥

with open('public.pem' ,'w+') as f:

f.write(pubkey.save_pkcs1().decode())

print("=============================")

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())

with open('./rsa_public_key.pem' ,'r') as f:

pubkey = rsa.PublicKey.load_pkcs1(f.read().encode())

with open('./rsa_private_key.pem' ,'r') as f:

privkey = rsa.PrivateKey.load_pkcs1(f.read().encode()

"""

加密 RSA

"""

def rsa_encrypt(message):

crypto_email_text = rsa.encrypt(message.encode(), pubkey)

return crypto_email_text

# message = "这是商机：..."

# print(pubkey,"\n")

# crypto_email_text = rsa.encrypt(message.encode(), pubkey)

# print(crypto_email_text)

text = rsa_encrypt("hello world")

print(text)

"""

解密

"""

def rsa_decrypt(message):

message_str = rsa.decrypt(message,privkey).decode()

return message_str

message = rsa.decrypt(crypto_email_text, privkey).decode()

print("\n",message)

"""

签名

"""

message = '这是重要指令：...'

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

"""

验证

"""

# 收到指令明文、密文，然后用公钥验证，进行身份确认

rsa.verify(message.encode(), crypto_email_text, pubkey)