数码吧

Python中RSA的PKCS#1、PKCS#8，MD5加密

一、Python-RSA

pip install rsa

python-rsa官方地址：https://stuvel.eu/python-rsa-doc/

rsa.encrypt(message, pub_key)

rsa.decrypt(crypto, priv_key)

import base64
import rsa


class RsaDemo:
    def __init__(self):
        self.pubkey, self.privkey = rsa.newkeys(512)   #生成公钥、私钥对象，密钥位数512

    def encrypt_str(self,test_str):
        """
        加密
        :param test_str: 需要进行加密的字符串
        :return: 返回加密后的str
        """
        new_str = test_str.encode("utf8")   #字符串转为utf8字节码
        crypt_str = rsa.encrypt(message=new_str, pub_key=self.pubkey)   #加密，之后数据类型为byte
        b64_str = base64.b64encode(crypt_str)  # base64编码，格式为byte
        result = b64_str.decode()    # 转为字符串
        print(type(result),result)
        return result


    def decrypt_str(self,crypt_str:str):
        """
        解密
        :param crypt_str:
        :return:
        """
        byte_str = crypt_str.encode()       #字符串编码为byte
        test_str = base64.b64decode(byte_str)          #base64解码
        byte_result = rsa.decrypt(crypto=test_str,priv_key=self.privkey)    #解密
        str_result = byte_result.decode()              #解码为字符串
        print(type(str_result), str_result)


if __name__ == '__main__':
    test = RsaDemo()
    phone = "15200000001"
    crypt_phone = test.encrypt_str(phone)
    decrypt_phone = test.decrypt_str(crypt_phone)

二、pyhton的Crypto

pip install pycryptodome

2、使用

import base64
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5 as PKCS1_cipher


#公钥
public_key = """-----BEGIN PUBLIC KEY-----
********************************
-----END PUBLIC KEY-----"""

#私钥
private_key ="""-----BEGIN RSA PRIVATE KEY-----
********************************
-----END RSA PRIVATE KEY-----"""

message = "qq123456"

#加密
pub_key = RSA.importKey(public_key)  
cipher = PKCS1_cipher.new(pub_key)
rsa_text = base64.b64encode(cipher.encrypt(message.encode("utf-8)")))     #加密并转为b64编码
text = rsa_text.decode("utf8")       #解码为字符串
print("加密后的内容：",text)             


# 解密
pri_Key = RSA.importKey(private_key)
cipher = PKCS1_cipher.new(pri_Key)
back_text = cipher.decrypt(base64.b64decode(text.encode("utf8")), 0)
print("解密后的内容：",back_text.decode("utf-8"))

三、MD5

import hashlib
work_no = "00865"
work_no = work_no.encode("utf8")  #转为byte

#md5_no = hashlib.md5(work_no)       #编码为md5对象
#md5_no = md5_no.hexdigest()        #转为16进制字符串

result = hashlib.md5(work_no).hexdigest()
print(result)