[英]Why AES is not decrypting my encrypted text?
ecb模式有bug吗? 为什么我的程序即使我做了所有事情都无法工作......我被卡住了,请帮忙。
我加密的文本:你好世界
我的尝试:
from Crypto.Cipher import AES
import base64
key = '0123456789abcdef'
#this is the password that we are going to use to encrypt and decrpyt the text
def encrypt(text):
global key
cipher = AES.new(key, AES.MODE_ECB)
if len(text) %16!=0:
while not len(text)%16==0:
text=text+" "
encrypted_text =cipher.encrypt(text)
return encrypted_text.strip()
def decrypt(text):
global key
decipher = AES.new(key, AES.MODE_ECB)
if len(text)%16!=0:
while len(text)%16!=0:
text=str(text)+" "
return decipher.decrypt(text).strip()
text=input("Enter encrypted text here : ")
#b'XhXAv\xd2\xac\xa3\xc2WY*\x9d\x8a\x02'
print(decrypt(text))
输入:
b'XhXAv\xd2\xac\xa3\xc2WY*\x9d\x8a\x02'
output:
b"yR\xca\xb1\xf6\xcal<I\x93A1`\x1e\x17R\xbb\xc8(0\x94\x19'\xb3QT\xeb\x9b\xfe\xc8\xce\xf4l9\x92\xe8@\x18\xf2\x85\xbe\x13\x00\x8d\xa8\x96M9"
所需 Output:
hello world
解密时不要填充密文。 请注意,您可能需要在解密之后而不是之前删除填充。
from Crypto.Cipher import AES
from base64 import b64encode, b64decode
key = '0123456789abcdef'
#this is the password that we are going to use to encrypt and decrpyt the text
def encrypt(text):
global key
cipher = AES.new(key, AES.MODE_ECB)
if len(text) %16!=0:
while not len(text)%16==0:
text=text+" "
encrypted_text =cipher.encrypt(text)
return b64encode(encrypted_text).decode('UTF-8')
def decrypt(text):
global key
text = b64decode(text) # decode before decryption
decipher = AES.new(key, AES.MODE_ECB)
return decipher.decrypt(text).decode('UTF-8')
text = input("Please enter your text: ")
ciphertext = encrypt(text)
print(f'Ciphertext: {ciphertext}')
print(f'Decrypted ciphertet: {decrypt(ciphertext)}')
结果如下:
Please enter your text: hello world
Ciphertext: WGhYQXbSrKPCV1kqnYoCDQ==
Decrypted ciphertet: hello world
更新:您还可以通过在base64
中调用b64encode
来对密文进行编码,在这种情况下,您需要在解密之前通过调用b64decode
进行解码。 建议使用 base64 之类的编码,以方便在网络和 Internet 中传输密文。
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