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55 lines
1.9 KiB
55 lines
1.9 KiB
import hashlib, base64
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from tkinter import *
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from tkinter import ttk
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from pyDes import des, PAD_PKCS5, ECB
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from Crypto.PublicKey import RSA
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from Crypto.Hash import SHA256
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from Crypto.Signature import PKCS1_v1_5
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import rsa
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from pyDes import des, CBC, PAD_PKCS5
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from Crypto.Cipher import AES
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import binascii
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def panduan(root, op):
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with open("encryptedkeyfile.bin", "rb") as f:
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encryptedkeyfile = f.read()
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with open("./Bprivkey.pem", "rb") as YY:
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Bprivkey = YY.read()
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privkey = rsa.PrivateKey.load_pkcs1(Bprivkey)
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m = rsa.decrypt(encryptedkeyfile, privkey)
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with open("encryptedfile.txt", "rb") as ff:
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encryptedfile = ff.read()
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secret_key = m
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iv = secret_key
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if op == "DES":
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des_obj = des(secret_key, ECB, iv, pad=None, padmode=PAD_PKCS5)
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decrypt_str = des_obj.decrypt(encryptedfile)
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elif op == "AES_ECB":
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aes_obj = AES.new(secret_key, mode=AES.MODE_ECB)
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decrypt_str = aes_obj.decrypt(encryptedfile)
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elif op == "AES_CBC":
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aes = AES.new(secret_key, AES.MODE_CBC) # CBC模式下解密需要重新创建一个aes对象
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decrypt_str = aes.decrypt(encryptedfile)
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decrypt_str1 = decrypt_str.decode().rstrip("\0").encode()
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decrypt_str2 = hashlib.sha256(decrypt_str1).hexdigest().encode("utf-8")
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Apubkey = open("../client/Apubkey.pem", "rb").read().decode("utf-8")
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key = RSA.importKey(Apubkey)
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h = SHA256.new(decrypt_str2)
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verifier = PKCS1_v1_5.new(key)
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signature = open("sigfile.bin", "rb").read().decode()
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if verifier.verify(h, base64.b64decode(signature)):
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print("正确!")
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zhaiyao = Label(
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root, text="成功！", width=10, height=1
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)
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else:
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zhaiyao = Label(
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root, text="失败", width=10, height=1
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)
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zhaiyao.place(x=200,y=380,width=180,height=60)
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