【发布时间】:2020-07-13 09:55:19
【问题描述】:
我在 scala 中有一个代码,其中有我的加密和解密代码,它工作正常,代码是:
import java.util.Base64
import javax.crypto.Cipher
import javax.crypto.spec.{IvParameterSpec, SecretKeySpec}
class Encryption {
val key = "enIntVecTest2020"
val initVector = "encryptionIntVec"
def encrypt(text: String): String = {
val iv = new IvParameterSpec(initVector.getBytes("UTF-8"))
val skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES")
val cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING")
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv)
val encrypted = cipher.doFinal(text.getBytes())
return Base64.getEncoder().encodeToString(encrypted)
}
def decrypt(text:String) :String={
val iv = new IvParameterSpec(initVector.getBytes("UTF-8"))
val skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES")
val cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING")
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv)
val original = cipher.doFinal(Base64.getDecoder.decode(text))
new String(original)
}
}
val encryptobj = new Encryption()
val pwd = "#test@12345"
val result =encryptobj.encrypt(pwd)
密码:字符串 = #test@12345
结果:字符串 = lHhq1OzMSYnj+0XxiNzKhQ==
val pwd1 = encryptobj.decrypt(result)
println(pwd1)
pwd1: 字符串 = #test@12345
#test@12345
我尝试在 Python 中实现相同但没有给出预期的加密结果,这是我的代码(我在其他类似答案的帮助下):
from hashlib import sha256
import base64
from Crypto import Random
from Crypto.Cipher import AES
BS = 16
pad = lambda s: bytes(s + (BS - len(s) % BS) * chr(BS - len(s) % BS), 'utf-8')
unpad = lambda s : s[0:-ord(s[-1:])]
class AESCipher:
def __init__( self, key ):
self.key = bytes(key, 'utf-8')
def encrypt( self, raw ):
raw = pad(raw)
iv = "encryptionIntVec".encode('utf-8')
cipher = AES.new(self.key, AES.MODE_CBC, iv )
return base64.b64encode( iv + cipher.encrypt( raw ) )
def decrypt( self, enc ):
enc = base64.b64decode(enc)
iv = enc[:16]
cipher = AES.new(self.key, AES.MODE_CBC, iv )
return unpad(cipher.decrypt( enc[16:] )).decode('utf8')
cipher = AESCipher('enIntVecTest2020')
encrypted = cipher.encrypt('#test@12345')
decrypted = cipher.decrypt(encrypted)
print(encrypted)
b'ZW5jcnlwdGlvbkludFZlY5R4atTszEmJ4/tF8YjcyoU='
正如您所见,加密都不正确,我不知道我在哪里做错了。请帮助在 python 中实现与在 scala 中显示的相同的加密结果,我将不胜感激。
【问题讨论】:
-
Python代码中,IV和密文在加密时连接,解密时分离,Scala代码中缺少连接和分离。因此密文不同。 Python 代码的设计与通行做法相对应,但不是使用固定的 IV,而是使用每个加密随机生成的 IV。
-
哦,我的错,这是一个愚蠢的错误。谢谢@Topaco 让我知道。
标签: python scala aes pycrypto cbc-mode