基于统一身份认证的信息管理系统设计与实现

python

from flask import Flask, request, jsonify

import jwt

import datetime

app = Flask(__name__)

SECRET_KEY = 'your_secret_key'

@app.route('/login', methods=['POST'])

def login():

username = request.json['username']

password = request.json['password']

# 模拟数据库查询

if username == 'admin' and password == 'password':

token = jwt.encode({

'user': username,

'exp': datetime.datetime.utcnow() + datetime.timedelta(minutes=30)

}, SECRET_KEY, algorithm='HS256')

return jsonify({'token': token})

else:

return jsonify({'error': 'Invalid credentials'}), 401

if __name__ == '__main__':

app.run(debug=True)

python

from Crypto.Cipher import AES

from base64 import b64encode, b64decode

def encrypt_data(data):

key = b'Sixteen byte key'

cipher = AES.new(key, AES.MODE_EAX)

nonce = cipher.nonce

ciphertext, tag = cipher.encrypt_and_digest(data.encode())

return b64encode(nonce + ciphertext + tag).decode('utf-8')

def decrypt_data(encrypted_data):

key = b'Sixteen byte key'

encrypted_data = b64decode(encrypted_data)

nonce = encrypted_data[:16]

ciphertext = encrypted_data[16:-16]

tag = encrypted_data[-16:]

cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)

plaintext = cipher.decrypt(ciphertext)

try:

cipher.verify(tag)

return plaintext.decode('utf-8')

except ValueError:

return "Decryption failed"