加密要用到Crypto安装包 pip install Crypto

新建两个模块rsautils.py， rsatest.py直接上代码，

rsautils.py

#!/usr/bin/env python3# coding=utf-8# Author: Luosu201803"""create_rsa_key() - 创建RSA密钥my_encrypt_and_decrypt() - 测试加密解密功能rsa_sign() & rsa_signverify() - 测试签名与验签功能"""

import base64import jsonfrom Crypto.Hash import SHA1from Crypto.PublicKey import RSAfrom Crypto.Signature import pkcs1_15from Crypto.Cipher import PKCS1_v1_5 as Cipher_pkcs1_v1_5# 需要安装pycrypto rsafrom rsa_test import to_para, to_decrypt

pubkey = '''-----BEGIN RSA PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCCaqlxNJpDUjMLGlzLglAub6SLZDP8HxfpHzqgkecuVRpQ4OOlIOHSFGGHSRUyQ5F18vMzMcTWWzGaxV+bVHC8E0q9w1hUeUu954gn01wt6vK3N82oD/N0R9ZbireOGZB/weaW8cw8jUHjc/j9N4o1pV+vcOYUsU2xt5vXRwFEGQIDAQAB-----END RSA PUBLIC KEY-----'''

privatekey = '''-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----'''

def create_rsa_key(password="123456"):    """    创建RSA密钥,步骤说明：    1、从 Crypto.PublicKey 包中导入 RSA，创建一个密码(此密码不是RSA秘钥对)    2、生成 1024/2048 位的 RSA 密钥对(存储在私钥文件和公钥文件)    3、调用 RSA 密钥实例的 exportKey 方法(传入"密码"、"使用的 PKCS 标准"、"加密方案"这三个参数)得到私钥。    4、将私钥写入磁盘的文件。    5、使用方法链调用 publickey 和 exportKey 方法生成公钥，写入磁盘上的文件。    """    key = RSA.generate(1024)    encrypted_key = key.exportKey(passphrase=password, pkcs=8, protection="scryptAndAES128-CBC")    # encrypted_key = key.exportKey(pkcs=1)    # print('encrypted_key:', encrypted_key)    with open("my_private_rsa_key.pem", "wb") as f:        f.write(encrypted_key)    with open("my_rsa_public.pem", "wb") as f:        f.write(key.publickey().exportKey())

def encrypt_and_decrypt_test(message, password="123456"):    # 加载公钥用于加密    key = pubkey    rsakey = RSA.importKey(key)    cipher = Cipher_pkcs1_v1_5.new(rsakey)    cipher_text = base64.b64encode(cipher.encrypt(message))    print('%s 对应的密文是：' % message.decode("utf8"), cipher_text)    # 加载私钥用于解密    key = privatekey    rsakey = RSA.importKey(key)    cipher = Cipher_pkcs1_v1_5.new(rsakey)    text = cipher.decrypt((base64.b64decode(cipher_text)), password)    print('解密后原文是:', text.decode("utf8"))

def rsa_sign(message, password="123456"):    # 读取私钥信息用于加签    private_key = RSA.importKey(open("my_private_rsa_key.pem").read(), passphrase=password)    hash_obj = SHA1.new(message)    # print(pkcs1_15.new(private_key).can_sign())  #check wheather object of pkcs1_15 can be signed    # base64编码打印可视化    signature = base64.b64encode(pkcs1_15.new(private_key).sign(hash_obj))    return signature

def rsa_signverify(message, signature):    # 读取公钥信息用于验签    public_key = RSA.importKey(open("my_rsa_public.pem").read())    # message做“哈希”处理，RSA签名这么要求的    hash_obj = SHA1.new(message)    try:        # 因为签名被base64编码，所以这里先解码，再验签        pkcs1_15.new(public_key).verify(hash_obj, base64.b64decode(signature))        print('The signature is valid.')        return True    except (ValueError, TypeError):        print('The signature is invalid.')

if __name__ == '__main__':    message = "英文".encode("utf8")    create_rsa_key()    encrypt_and_decrypt_test(message)    dict_body = {'certificate_no': '2019042955452554', 'auth_code': '456789'}    encrypt_message = to_para(str(dict_body))    print("dict_body字典进行解密：%s" % to_decrypt(to_para(str(dict_body))))    biz_content = {'partner': 'diannei', 'request_id': '201904232025123456', '': '', 'request_type': 'Q01'}    signature = rsa_sign(message)    biz_content['sign'] = str(signature)    print('signature:', signature)    body_map = {'encrypt_message': encrypt_message}    dict_map = {'head': json.dumps(biz_content), 'body': json.dumps(body_map)}    print(dict_map)    print(rsa_signverify(message, signature))

rsatest.py

import rsaimport base64from Crypto.PublicKey import RSAfrom Crypto.Cipher import PKCS1_v1_5  as Cipher_pkcs1_v1_5

# 需要安装pycrypto rsapubkey = '''-----BEGIN RSA PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCCaqlxNJpDUjMLGlzLglAub6SLZDP8HxfpHzqgkecuVRpQ4OOlIOHSFGGHSRUyQ5F18vMzMcTWWzGaxV+bVHC8E0q9w1hUeUu954gn01wt6vK3N82oD/N0R9ZbireOGZB/weaW8cw8jUHjc/j9N4o1pV+vcOYUsU2xt5vXRwFEGQIDAQAB-----END RSA PUBLIC KEY-----'''

privatekey = '''-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----'''

# 加密def to_para(plain):    rsa_key = RSA.importKey(pubkey)    x = rsa.encrypt(plain.encode(), rsa_key)    cipher_text = base64.b64encode(x).decode()    return cipher_text

# 解密def to_decrypt(plain):    rsa_privkey = RSA.importKey(privatekey)    cipher = Cipher_pkcs1_v1_5.new(rsa_privkey)    x = cipher.decrypt(base64.b64decode(plain), "ERROR")    print(x.decode())    return x.decode()

def ByteToHex(bins):    """    Convert a byte string to it's hex string representation e.g. for output.    """    return ''.join(["%02X" % x for x in bins]).strip()

def HexToByte(hexStr):    """    Convert a string hex byte values into a byte string. The Hex Byte values may    or may not be space separated.    """    return bytes.fromhex(hexStr)

def hex_to_str(s):    return ''.join([chr(int(b, 16)) for b in [s[i:i + 2] for i in range(0, len(s), 2)]])

if __name__ == '__main__':    v = '182895d57f87530e854d9842ff02edaefc66fa1cca66c8f352111b6c5fbf22a9f057e5b74523cdd03f76424064df2c38ce45a68dd5492246e6b832c1b4edaacd8fb4e6050bed5a1a27ae7894d38b62e8453cd77fdbce3529d831e0278ac9e8ad3b8d6002ca82380b5ac61e7a19f773003136d64902c58f2ad563d04ce701c565'    b = bytes.fromhex(v)    k = base64.b64encode(b)    print(to_decrypt(k))