ai_v/venv/Lib/site-packages/cryptography/hazmat/primitives/kdf/pbkdf2.py
公司git 67f2621a69 feat(payment): 集成支付宝支付与订单管理功能
- 在应用中注册支付蓝图(payment_bp)以支持支付接口
- 配置支付宝相关秘钥、回调地址及环境选项
- 新增订单模型(Order),支持订单数据存储与管理
- 管理后台接口添加订单列表查询功能,支持超级管理员访问
- 购买页面与表单修改,支持不同套餐的购买提交
- 支付成功页面提示,显示订单编号及积分到账信息
- 移除买积分按钮禁用逻辑,开放购买功能
2026-01-14 17:00:43 +08:00

63 lines
1.9 KiB
Python

# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import annotations
import typing
from cryptography import utils
from cryptography.exceptions import (
AlreadyFinalized,
InvalidKey,
UnsupportedAlgorithm,
_Reasons,
)
from cryptography.hazmat.bindings._rust import openssl as rust_openssl
from cryptography.hazmat.primitives import constant_time, hashes
from cryptography.hazmat.primitives.kdf import KeyDerivationFunction
class PBKDF2HMAC(KeyDerivationFunction):
def __init__(
self,
algorithm: hashes.HashAlgorithm,
length: int,
salt: bytes,
iterations: int,
backend: typing.Any = None,
):
from cryptography.hazmat.backends.openssl.backend import (
backend as ossl,
)
if not ossl.pbkdf2_hmac_supported(algorithm):
raise UnsupportedAlgorithm(
f"{algorithm.name} is not supported for PBKDF2.",
_Reasons.UNSUPPORTED_HASH,
)
self._used = False
self._algorithm = algorithm
self._length = length
utils._check_bytes("salt", salt)
self._salt = salt
self._iterations = iterations
def derive(self, key_material: utils.Buffer) -> bytes:
if self._used:
raise AlreadyFinalized("PBKDF2 instances can only be used once.")
self._used = True
return rust_openssl.kdf.derive_pbkdf2_hmac(
key_material,
self._algorithm,
self._salt,
self._iterations,
self._length,
)
def verify(self, key_material: bytes, expected_key: bytes) -> None:
derived_key = self.derive(key_material)
if not constant_time.bytes_eq(derived_key, expected_key):
raise InvalidKey("Keys do not match.")