python字符串加密解密的三种方法分享(base64 win32com)

1. 最简单的方法是用base64:

import base64

s1 = base64.encodestring('hello world')
s2 = base64.decodestring(s1)
print s1,s2
# aGVsbG8gd29ybGQ=\n
# hello world

Note: 这是最简单的方法了，但是不够保险，因为如果别人拿到你的密文，也可以自己解密来得到明文

2. 第二种方法是使用win32com.client

import win32com.client
def encrypt(key,content): # key:密钥,content:明文
 EncryptedData = win32com.client.Dispatch('CAPICOM.EncryptedData')
 EncryptedData.Algorithm.KeyLength = 5
 EncryptedData.Algorithm.Name = 2
 EncryptedData.SetSecret(key)
 EncryptedData.Content = content
 return EncryptedData.Encrypt()

def decrypt(key,content): # key:密钥,content:密文
 EncryptedData = win32com.client.Dispatch('CAPICOM.EncryptedData')
 EncryptedData.Algorithm.KeyLength = 5
 EncryptedData.Algorithm.Name = 2
 EncryptedData.SetSecret(key)
 EncryptedData.Decrypt(content)
 str = EncryptedData.Content
 return str
s1 = encrypt('lovebread', 'hello world')
s2 = decrypt('lovebread', s1)
print s1,s2
# MGEGCSsGAQQBgjdYA6BUMFIGCisGAQQBgjdYAwGgRDBCAgMCAAECAmYBAgFABAgq
# GpllWj9cswQQh/fnBUZ6ijwKDTH9DLZmBgQYmfaZ3VFyS/lq391oDtjlcRFGnXpx
# lG7o
# hello world

3. 还有就是自己写加密解密算法，比如:

def encrypt(key, s):
 b = bytearray(str(s).encode("gbk"))
 n = len(b) # 求出 b 的字节数
 c = bytearray(n*2)
 j = 0
 for i in range(0, n):
 b1 = b[i]
 b2 = b1 ^ key # b1 = b2^ key
 c1 = b2 % 16
 c2 = b2 // 16 # b2 = c2*16 + c1
 c1 = c1 + 65
 c2 = c2 + 65 # c1,c2都是0~15之间的数,加上65就变成了A-P 的字符的编码
 c[j] = c1
 c[j+1] = c2
 j = j+2
 return c.decode("gbk")

def decrypt(key, s):
 c = bytearray(str(s).encode("gbk"))
 n = len(c) # 计算 b 的字节数
 if n % 2 != 0 :
 return ""
 n = n // 2
 b = bytearray(n)
 j = 0
 for i in range(0, n):
 c1 = c[j]
 c2 = c[j+1]
 j = j+2
 c1 = c1 - 65
 c2 = c2 - 65
 b2 = c2*16 + c1
 b1 = b2^ key
 b[i]= b1
 try:
 return b.decode("gbk")
 except:
 return "failed"
key = 15
s1 = encrypt(key, 'hello world')
s2 = decrypt(key, s1)
print s1,'\n',s2 
# HGKGDGDGAGPCIHAGNHDGLG
# hello world

以上就是python字符串加密解密的三种方法分享(base64 win32com)。一粒灰尘，改变不了大海的明净；一颗石子，阻挡不了江河的前进；一丝乌云，遮挡不了太阳的光辉；一次灾难，破坏不了勇者的励志。更多关于python字符串加密解密的三种方法分享(base64 win32com)请关注haodaima.com其它相关文章！