DES签名混淆

为了避免DES签名混淆问题，可以使用更强大的加密算法，例如RSA或AES等。以下是使用RSA进行数字签名和验证的示例：

数字签名代码：

from Crypto.Signature import PKCS1_v1_5
from Crypto.Hash import SHA256
from Crypto.PublicKey import RSA

message = b'This is the message to be signed'

# Generate private and public keys
key = RSA.generate(2048)

# Create a signer using the private key
signer = PKCS1_v1_5.new(key)

# Compute the hash of the message
digest = SHA256.new()
digest.update(message)

# Sign the hash
signature = signer.sign(digest)

数字签名验证代码：

# Create a verifier using the public key
verifier = PKCS1_v1_5.new(key.publickey())

# Compute the hash of the message
digest = SHA256.new()
digest.update(message)

# Verify the signature
if verifier.verify(digest, signature):
    print('Signature is valid')
else:
    print('Signature is invalid')