前言

好长时间没有更新了，但是要有始有终，这个系列必须完成。

C#、Golang、Python、Java（Android）之间Des、Rsa加解密互通系列之前言
C#、Golang、Python、Java（Android）之间Des、Rsa加解密互通系列之C#
C#、Golang、Python、Java（Android）之间Des、Rsa加解密互通系列之Golang
C#、Golang、Python、Java（Android）之间Des、Rsa加解密互通系列之Python
C#、Golang、Python、Java（Android）之间Des、Rsa加解密互通系列之Java(Android)

代码

Des对称加密工具类

# -*- coding: utf-8 -*-# 依赖包 pip install pyDesimport base64import pyDesclass DesHelper(object):    '''      Des对称加密工具类    :param data:    :param app_key:    :return:    '''    def encrypt(self, data, key, iv):        '''        Des对称加密        :param data: 需要加密的内容        :param key:  加密key 8 位        :param iv:   偏移向量 8位        :return:        '''        k = pyDes.des(key, pyDes.CBC, iv, pad=None, padmode=pyDes.PAD_PKCS5)        d = k.encrypt(data)        d = base64.b64encode(d)        return d    def decrypt(self, encData, key, iv):        '''        Des对称解密        :param encData: 加密后的密文        :param key:     解密key 8位        :param iv:      偏移向量 8位        :return:        '''        k = pyDes.des(key, pyDes.CBC, iv, pad=None, padmode=pyDes.PAD_PKCS5)        data = base64.b64decode(encData)        d = k.decrypt(data)        return d    def tripleEncrypt(self, data, key, iv):        '''        3D Des对称加密        :param data: 需要加密的内容        :param key:  加密key 24位        :param iv:   偏移向量 8位        :return:        '''        k = pyDes.triple_des(key, pyDes.CBC, iv, pad=None, padmode=pyDes.PAD_PKCS5)        d = k.encrypt(data)        d = base64.b64encode(d)        return d    def tripleDecrypt(self, encData, key, iv):        '''        3D Des对称解密        :param encData: 加密后的密文        :param key:     解密key 24位        :param iv:      偏移向量 8位        :return:        '''        k = pyDes.triple_des(key, pyDes.CBC, iv, pad=None, padmode=pyDes.PAD_PKCS5)        data = base64.b64decode(encData)        d = k.decrypt(data)        return dif __name__ == '__main__':    h = DesHelper()    # 加解密key    key = 'ajglslslajglslslajglslsl'    iv = 'kie8dkjd'    # 原文    data = 'abcdsdfasdfawe3234234234'    print('原文：',data)    print('******** 分隔线 **********')    # 对称加密密文    encData = h.encrypt(data,key[0:8],iv)    print('密文：',encData)    # 对称解密结果    decData = h.decrypt(encData,key[0:8],iv)    print('解密：',decData)    print('******** 分隔线 **********')    encData = h.tripleEncrypt(data, key, iv)    print('密文：', encData)    # 对称解密结果    decData = h.tripleDecrypt(encData, key, iv)    print('解密：', decData)

Rsa密钥对生成工具类

# -*- coding: utf-8 -*-# 依赖包 pip install pycryptodome# 如果仍然报没有Module可以尝试将 python安装目录下site-packages的子文件夹crypto改成Cryptofrom Crypto import Randomfrom Crypto.PublicKey import RSA# 利用伪随机数来生成私钥和公钥random_generator = Random.new().readkeys = RSA.generate(1024, random_generator)private_pem = keys.exportKey()f = open('private_key.pem', 'w')f.write(private_pem.decode('utf-8'))f.close()public_pem = keys.publickey().exportKey()f = open('public_key.pem', 'w')f.write(public_pem.decode('utf-8'))f.close()

Rsa加密、解密、签名、验签工具类

# -*- coding: utf-8 -*-# 依赖包 pip install pycryptodome# 如果仍然报没有Module可以尝试将 python安装目录下site-packages的子文件夹crypto改成Cryptoimport Crypto.Cipher as Cipherfrom Crypto.PublicKey import RSAfrom Crypto.Cipher import PKCS1_v1_5 as PKCS1_v1_5_cipperfrom Crypto.Signature import PKCS1_v1_5 as PKCS1_v1_5_signfrom Crypto.Hash import SHA1import  base64class RsaHelper(object):    """RSA加解密签名类    """    def __init__(self, ciper_lib=PKCS1_v1_5_cipper, sign_lib=PKCS1_v1_5_sign, hash_lib=SHA1,                pub_file=None, pri_file=None, pub_skey=None, pri_skey=None, pub_key=None, pri_key=None,                reversed_size=11):        # 加解密库        self.ciper_lib = ciper_lib        self.sign_lib = sign_lib        self.hash_lib = hash_lib        # 公钥密钥        if pub_key:            self.pub_key = pub_key        elif pub_skey:            self.pub_key = RSA.importKey(pub_skey)        elif pub_file:            self.pub_key = RSA.importKey(open(pub_file).read())        if pri_key:            self.pri_key = pri_key        elif pri_skey:            self.pri_key = RSA.importKey(pri_skey)        elif pri_file:            self.pri_key = RSA.importKey(open(pri_file).read())        # 分块保留长度        self.block_reversed_size = reversed_size    # 根据key长度计算分块大小    def get_block_size(self, rsa_key):        try:            # RSA仅支持限定长度内的数据的加解密，需要分块            # 分块大小            reserve_size = self.block_reversed_size            key_size = rsa_key.size_in_bits()            if (key_size % 8) != 0:                raise RuntimeError('RSA 密钥长度非法')            # 密钥用来解密，解密不需要预留长度            if rsa_key.has_private():                reserve_size = 0            bs = int(key_size / 8) - reserve_size        except Exception as err:            print('计算加解密数据块大小出错', rsa_key, err)        return bs    # 返回块数据    def block_data(self, data, rsa_key):        bs = self.get_block_size(rsa_key)        for i in range(0, len(data), bs):            yield data[i:i + bs]    # 加密    def enc_bytes(self, data, key=None):        text = b''        try:            rsa_key = self.pub_key            if key:                rsa_key = key            cipher = self.ciper_lib.new(rsa_key)            for dat in self.block_data(data, rsa_key):                cur_text = cipher.encrypt(dat)                text += cur_text        except Exception as err:            print('RSA加密失败', data, err)        return text    # 解密    def dec_bytes(self, data, key=None):        text = b''        try:            rsa_key = self.pri_key            if key:                rsa_key = key            cipher = self.ciper_lib.new(rsa_key)            for dat in self.block_data(data, rsa_key):                if type(self.ciper_lib) == Cipher.PKCS1_v1_5:                    cur_text = cipher.decrypt(dat)                else:                    cur_text = cipher.decrypt(dat, '解密异常')                text += cur_text        except Exception as err:            print('RSA解密失败', data, err)        return text    # RSA签名    def sign_bytes(self, data, key=None):        signature = ''        try:            rsa_key = self.pri_key            if key:                rsa_key = key            h = self.hash_lib.new(data)            signature = self.sign_lib.new(rsa_key).sign(h)        except Exception as err:            print('RSA签名失败', '', err)        return signature    # RSA签名验证    def sign_verify(self, data, sig, key=None):        try:            rsa_key = self.pub_key            if key:                rsa_key = key            h = self.hash_lib.new(data)            self.sign_lib.new(rsa_key).verify(h, sig)            ret = True        except (ValueError, TypeError):            ret = False        return ret    # 读取标准的rsa公私钥pem文件    def load_rsa_file(self,fn):        key = None        try:            key = RSA.importKey(open(fn).read())        except Exception as err:            print('导入rsa的KEY文件出错', fn, err)        return key    # 标准字符串密钥转rsa格式密钥    def rsa_key_str2std(self,skey):        ret = None        try:            ret = RSA.importKey(skey)        except Exception as err:            print('字符串密钥转rsa格式密钥错误', skey, err)        return retif __name__ == '__main__':    pub_key = '''-----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC7PyjMEuniN6BPn8oqzIZ6AO1NjSTO9R3adCCIwKfKIEoWXXM+tHDpktdPKSaAsWJPTNAGvEvtxOfzXib/EMXKqD0eUy5MatfpRjRdf1hJVimmfrb09Qx2j7CsKLy7nD23m4xubdYBwvkjMwt/L3JxB5D6qryW1wei/j1c+/OCxQIDAQAB-----END PUBLIC KEY-----'''    pri_key = '''-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----'''    #r = RsaHelper(pri_file='private_key.pem', pub_file='public_key.pem')    r = RsaHelper(pub_skey=pub_key,pri_skey=pri_key)    data = "hello word 中国"    encrydata = r.enc_bytes(data.encode(encoding='utf-8'))    encrydata =base64.b64encode(encrydata)    print(encrydata)    encrydata = 'uDeQATxRbbkjTBVHXa6yi8B0KOIu7HLZuvKpXz5KNYQ8RRUTE5P3MF9d4hOG3qq+zk5z8y/1EngzFvpbsljP5qc71YQZbJEUAXARBAWB9ex7GyVlLzIA/T5bF7OmcoCr4fkWt4OYzC0aaFsKsmGDXS6aWGjD6ObulIjizDZiv8k='    encrydata = base64.b64decode(encrydata)    encrydata = r.dec_bytes(encrydata)    print(encrydata.decode("utf-8"))

github工程源码

https://github.com/lhtzbj12/python_encryption

C#、Golang、Python、Java（Android）之间Des、Rsa加解密互通系列之Python

前言

代码

Des对称加密工具类

Rsa密钥对生成工具类

Rsa加密、解密、签名、验签工具类

github工程源码

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