python aes加密/解密不会返回相同的结果 [英] python aes encrypt/decrypt does not return the same results

问题描述

下面的代码示例不加密/解密操作后返回原始文本，我想弄清楚为什么

 从Crypto.Cipher导入AES 
 
 text =这是纯文本
要使用
它应该是128个字符长，以避免填充，它是拆分
中有新行，如
文件
 
 password =password ........
 
 block = 32 
 mode = AES.MODE_CBC 
 
 enc = AES.new（password，mode）
 
 encrypted = enc.encrypt（text）
 
 print ORIGINAL：+ text 
 
 printENCRYPTED：+ str（encrypted）
 
 printDECRYPTED：+ str（enc.decrypt（encrypted））
 
 h2_lin>解决方案
我认为，你需要重置初始化向量（ IV ），以获得所需的结果。方法可能是创建一个新的AES对象进行解密：
  enc = AES.new（password，mode）
 encrypted = enc.encrypt（text）
 printORIGINAL：+ text 
 printENCRYPTED：+ str（encrypted）
 dec = AES.new b $ b printDECRYPTED：+ str（dec.decrypt（encrypted））
  
 
below code sample does not return the original text after encrypt/decrypt operation and I am trying to figure it out why 
from Crypto.Cipher import AES

text = """This is plain text 
to use.
It should be exqctly 128 characters long to avoid padding and it is split
with new lines as in 
file"""

password = "password........"

block = 32
mode = AES.MODE_CBC

enc = AES.new(password, mode)

encrypted = enc.encrypt(text)

print "ORIGINAL: " + text

print "ENCRYPTED: " + str(encrypted)

print "DECRYPTED: " + str(enc.decrypt(encrypted))
can one tell why first part of the text is malformed ?
解决方案
I think, you need to reset the initialisation vector (IV), in order to get the desired result. The easist way might be to create a new AES object for decrypting:
enc = AES.new(password, mode)
encrypted = enc.encrypt(text)
print "ORIGINAL: " + text
print "ENCRYPTED: " + str(encrypted)
dec = AES.new(password, mode)
print "DECRYPTED: " + str(dec.decrypt(encrypted))


                        
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