支付宝支付功能接入(PC)

在使用支付宝支付功能开发的阶段, 可以在沙箱环境下进行开发, 开发完成之后, 到线上再进行相关参数的替换即可

一. 登陆支付宝开放平台(https://open.alipay.com/platform/home.htm)

进入沙盒环境:

支付宝支付功能接入(PC)

二. 设置加密方式 RSA 或者RSA2(推荐)

1. 生成RSA秘钥

　　可以使用支付宝提供的生成工具,具体说明见官网说明(https://opendocs.alipay.com/open/291/105971#LDsXr)

　　使用工具生成秘钥对

应用公钥: 需要将公钥填写到RSA2秘钥的设置中

应用私钥:是生成签名需要使用的

支付宝公钥: 在设置中点击查看支付宝公钥即可看到

支付宝支付功能接入(PC)

2. 秘钥文件的修改

　　在秘钥文件中的内容的头部和尾部加上两行字符串, 注意所有的秘钥都要添加

-----BEGIN PRIVATE KEY-----
# 秘钥内容....
-----END PRIVATE KEY-----

　　这样可以方便的直接读取文件

三. 集成支付宝到项目

基本流程:

1\. 接收商品名称信息、订单金额、订单号
2\. 请求支付宝预付订单创建接口
3\. 根据返回的URL返回给客户端
4\. 用户支付
5\. 用户支付完成之后，客户端会跳转到一个页面(服务器预置页面)
6\. 用户支付完成之后，支付宝会调用回调(通知服务器)

安装模块

# 需要模块加密方面的模块
pip install pycryptodome

封装类

# __init__.py文件(直接拷贝)
from datetime import datetime
from Crypto.PublicKey import RSA
from Crypto.Signature import PKCS1_v1_5
from Crypto.Hash import SHA256
from base64 import b64encode, b64decode
from urllib.parse import quote_plus
from urllib.parse import urlparse, parse_qs
from urllib.request import urlopen
from base64 import decodebytes, encodebytes
import json

# 支付宝封装(不需要做任何修改)
class AliPay(object):
    """
    支付宝支付接口
    """
    def __init__(self, appid, app_notify_url, app_private_key_path,
                 alipay_public_key_path, return_url, debug=False):
        self.appid = appid
        self.app_notify_url = app_notify_url
        self.app_private_key_path = app_private_key_path
        self.app_private_key = None
        self.return_url = return_url
        with open(self.app_private_key_path) as fp:
            self.app_private_key = RSA.importKey(fp.read())

        self.alipay_public_key_path = alipay_public_key_path
        with open(self.alipay_public_key_path) as fp:
            self.alipay_public_key = RSA.import_key(fp.read())

        if debug is True:
            self.__gateway = "https://openapi.alipaydev.com/gateway.do"
        else:
            self.__gateway = "https://openapi.alipay.com/gateway.do"

    def direct_pay(self, subject, out_trade_no, total_amount, return_url=None, **kwargs):
        biz_content = {
            "subject": subject,
            "out_trade_no": out_trade_no,
            "total_amount": total_amount,
            "product_code": "FAST_INSTANT_TRADE_PAY",
            # "qr_pay_mode":4
        }

        biz_content.update(kwargs)
        data = self.build_body("alipay.trade.page.pay", biz_content, self.return_url)
        return self.sign_data(data)

    def build_body(self, method, biz_content, return_url=None):
        data = {
            "app_id": self.appid,
            "method": method,
            "charset": "utf-8",
            "sign_type": "RSA2",
            "timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
            "version": "1.0",
            "biz_content": biz_content
        }

        if return_url is not None:
            data["notify_url"] = self.app_notify_url
            data["return_url"] = self.return_url

        return data

    def sign_data(self, data):
        data.pop("sign", None)
        # 排序后的字符串
        unsigned_items = self.ordered_data(data)
        unsigned_string = "&".join("{0}={1}".format(k, v) for k, v in unsigned_items)
        sign = self.sign(unsigned_string.encode("utf-8"))
        ordered_items = self.ordered_data(data)
        quoted_string = "&".join("{0}={1}".format(k, quote_plus(v)) for k, v in ordered_items)

        # 获得最终的订单信息字符串
        signed_string = quoted_string + "&sign=" + quote_plus(sign)
        return signed_string

    def ordered_data(self, data):
        complex_keys = []
        for key, value in data.items():
            if isinstance(value, dict):
                complex_keys.append(key)

        # 将字典类型的数据dump出来
        for key in complex_keys:
            data[key] = json.dumps(data[key], separators=(‘,‘, ‘:‘))

        return sorted([(k, v) for k, v in data.items()])

    def sign(self, unsigned_string):
        # 开始计算签名
        key = self.app_private_key
        signer = PKCS1_v1_5.new(key)
        signature = signer.sign(SHA256.new(unsigned_string))
        # base64 编码，转换为unicode表示并移除回车
        sign = encodebytes(signature).decode("utf8").replace("\n", "")
        return sign

    def _verify(self, raw_content, signature):
        # 开始计算签名
        key = self.alipay_public_key
        signer = PKCS1_v1_5.new(key)
        digest = SHA256.new()
        digest.update(raw_content.encode("utf8"))
        if signer.verify(digest, decodebytes(signature.encode("utf8"))):
            return True
        return False

    def verify(self, data, signature):
        if "sign_type" in data:
            sign_type = data.pop("sign_type")
        # 排序后的字符串
        unsigned_items = self.ordered_data(data)
        message = "&".join(u"{}={}".format(k, v) for k, v in unsigned_items)
        return self._verify(message, signature)

# 初始化操作
# 设置秘钥公钥的存放路径
app_private_key_path = os.path.join(BASE_DIR, ‘alipay/ying_yong_si_yao.txt‘)
alipay_public_key_path = os.path.join(BASE_DIR, ‘alipay/zhi_fu_bao_gong_yao.txt‘)
# 根据自己申请的进行设置 
alipay = AliPay(
    appid="2016091800542542",  # 设置签约的appid
    app_notify_url="http://112.74.55.3/notify/",   # 异步支付通知url
    app_private_key_path=app_private_key_path,  # 设置应用私钥
    alipay_public_key_path=alipay_public_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥,
    debug=True,  # 默认False,            # 设置是否是沙箱环境，True是沙箱环境
    return_url="http://112.74.55.3/result/",   # 同步支付通知url,在这个页面可以展示给用户看，只有付款成功后才会跳转
)

备注: return_url 和 notify_url的区别  
    return_url: 
        如果设置了return_url，买家付款成功后会跳到return_url所在页面;
        在这个页面可以展示给用户看，只有付款成功后才会跳转;

    notify_url:
        服务器后台通知,这个页面是程序后台运行的(买家和卖家都看不到);
        买家付完款后,支付宝会调用notify_url这个页面所在的页面并把相应的参数传递到这个页面;
        这个页面根据支付宝传递过来的参数修改网站订单的状态,更新完订单后需要在页面上;
        打印出一个success给支付宝,如果反馈给支付宝的不是success,支付宝会继续调用这个页面;

应用公钥:

应用私钥:

支付宝公钥:

支付示例:

# 定义资源
class Pay(Resource):
    def post(self):
        # 获取订单号，根据订单生成 支付订单
        # 支付订单包括: 订单号、支付金额、订单名称

        # 传递参数执行支付类里的direct_pay方法，返回签名后的支付参数，
        url = alipay.direct_pay(
            subject="测试订单",  # 订单名称
            # 订单号生成，一般是当前时间(精确到秒)+用户ID+随机数
            out_trade_no="201810021221",  # 订单号
            total_amount=100,  # 支付金额
            return_url="http://112.74.55.3/result/"  # 支付成功后，跳转url 【客户端显示】
        )

        # 将前面后的支付参数，拼接到支付网关
        # 注意：下面支付网关是沙箱环境，最终进行签名后组合成支付宝的url请求
        re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url)

        # 返回的是支付宝的支付地址
        return {‘re_url‘: re_url}

# 添加资源
api.add_resource(Pay, ‘/paytest/‘)  # 支付接口

支付宝同步数据:

# 支付宝返回的数据
data = {
    ‘seller_id‘: ‘2088102176233911‘,
    ‘trade_no‘: ‘2018101822001438720500654194‘, # 订单号
    ‘timestamp‘: ‘2018-10-18 00:12:54‘,
    ‘app_id‘: ‘2016091800542542‘,
    ‘version‘: ‘1.0‘,
    ‘sign_type‘: ‘RSA2‘,
    ‘out_trade_no‘: ‘Thu Oct 18 00:09:45 20187265‘,
    ‘auth_app_id‘: ‘2016091800542542‘,
    ‘total_amount‘: ‘123.00‘,
    ‘charset‘: ‘utf-8‘,
    ‘method‘: ‘alipay.trade.page.pay.return‘
    ‘sign‘: ‘cjok55ELAfbGc9RfwsS93pplaFNUIv0hAsfzbklDU+5sdnq0lc9K1a+IRO8MJZpwCX9OjBLXqY64LEa2cM5hv0bly2HnEmbNTta8e15VdvXFH//zMWT05HeNmXu2+H3Kq2RzQbFs2LIdFD2HmYDnbkwhTyAxnhQWEn7yZdAeD/7vNjGoREW2Xbh3aV5ukSFBihzwTGJNMNxyKei6KxQwJRJKDyV0fdZyH6i39xoyp8aMfQGZqRC9HbKKBW6BsFg/At1hVsMJQ4Ib/6jK2NMNMckUIf1gXLrY4Gv/LaqVSYuZpwNQoEwgHYHiC9KUa0BhsgAlJDEpARliLnvyUUOJKA==‘
}

支付宝异步数据:

# 支付宝返回的数据
data = {
     "subject": "测试订单",
     "gmt_payment": "2016-11-16 11:42:19",
     "charset": "utf-8",
     "seller_id": "xxxx",
     "trade_status": "TRADE_SUCCESS",
     "buyer_id": "xxxx",
     "auth_app_id": "xxxx",
     "buyer_pay_amount": "0.01",
     "version": "1.0",
     "gmt_create": "2016-11-16 11:42:18",
     "trade_no": "xxxx",    # 订单号
     "fund_bill_list": "[{\"amount\":\"0.01\",\"fundChannel\":\"ALIPAYACCOUNT\"}]",
     "app_id": "xxxx",
     "notify_time": "2016-11-16 11:42:19",
     "point_amount": "0.00",
     "total_amount": "0.01",
     "notify_type": "trade_status_sync",
     "out_trade_no": "xxxx",
     "buyer_logon_id": "xxxx",
     "notify_id": "xxxx",
     "seller_email": "xxxx",
     "receipt_amount": "0.01",
     "invoice_amount": "0.01",
     "sign": "xxx"
}

注意点:

1. 测试的时候, 使用沙盒环境的支付宝

支付宝支付功能接入(PC)

　　平台提供了沙盒账号,进行登陆与支付的时候使用

2. 参数说明

appid :2016091700535495(填写沙箱应用的appid)
return_url: 对于PC网站支付的交易，在用户支付完成之后，支付宝会根据API中商户传入的return_url参数，通过GET请求的形式将部分支付结果参数通知到商户系统, 即同步返回地址，即支付成功跳转的页面url。同步通知详情
sign 签名字段，最重要的字段，后面会讲，详见签名
notify_url: 对于PC网站支付的交易，在用户支付完成之后，支付宝会根据API中商户传入的notify_url，通过POST请求的形式将支付结果作为参数通知到商户系统。异步通知详情
biz_content：除公共参数以外的其他必要参数


请求参数这些字段是最后放入公共字段里的biz_content，着重关注必填项

支付宝支付功能接入(PC)

3. 生成签名与签名验证

import json

from datetime import datetime
from Crypto.PublicKey import RSA
from Crypto.Signature import PKCS1_v1_5
from Crypto.Hash import SHA256
from base64 import b64encode, b64decode
from urllib.parse import urlparse, parse_qs, quote_plus


class Alipay(object):
    def __init__(self, app_id, app_private_key_path, alipay_public_key_path, debug=True, return_url=None, notify_url=None):
        self.app_id = app_id
        self.debug = debug
        self.return_url = return_url
        self.notify_url = notify_url

        with open(app_private_key_path) as fp:
            self.app_private_key = RSA.importKey(fp.read())
        with open(alipay_public_key_path) as fp:
            self.alipay_public_key = RSA.importKey(fp.read())

        if debug:
            self.__gateway = "https://openapi.alipaydev.com/gateway.do"
        else:
            self.__gateway = "https://openapi.alipay.com/gateway.do"

    def build_url(self, biz_content):
        """
        :param biz_content: 请求参数部分
        :return: 完整的访问地址url字符串
        """
        # 初始化必填公共字段，sign除外
        data = {
            "app_id": self.app_id,
            "method": "alipay.trade.page.pay",
            "charset": "utf-8",
            "sign_type": "RSA2",
            "timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
            "version": "1.0",
            "biz_content": biz_content
        }
        if self.notify_url:
            data["notify_url"] = self.notify_url
        if self.return_url:
            data["return_url"] = self.return_url

        # 对待签名字符串进行RSA签名
        sign_str = self.get_request_url_str(data, flag=False)
        sign = self.rsa_sign(sign_str.encode("utf-8"))

        # 将签好名的sign字段拼接到请求字符串最后，字符串需对斜线进行编码
        request_url_str = self.get_request_url_str(data)
        request_url_str += "&sign={}".format(quote_plus(sign))
        print(self.__gateway + ‘?‘ + request_url_str)
        return self.__gateway + ‘?‘ + request_url_str

    def translate_url(self, returl_url):
        """
        :param returl_url:返回字符串
        :return: 解析出请求参数字符串及签名
        """
        o = urlparse(return_url)
        query = parse_qs(o.query)
        processed_query = {}

        ali_sign = query.pop("sign")[0] if "sign" in query else None

        if "sign_type" in query:
            sign_type = query.pop("sign_type")[0]
        for key, value in query.items():
            processed_query[key] = value[0]
        request_url_str = self.get_request_url_str(processed_query, flag=False).encode("utf-8")
        # 将解析后的request_url_str字符串和签名参数拼接成元祖
        data = ([request_url_str, ali_sign])
        return data


    def get_biz_content(self, out_trade_no, total_amount, subject, **kwargs):
        """
        获取请求参数
        """
        biz_content = {
            "out_trade_no": out_trade_no,
            "product_code": "FAST_INSTANT_TRADE_PAY",
            "total_amount": total_amount,
            "subject": subject,
        }
        biz_content.update(kwargs)
        return biz_content

    def get_request_url_str(self, data, flag=True):
        """
        :param data: 获取的字典型请求参数
        :param flag: 是否对字典的值进行编码斜线
        :return:排好序并用&进行拼接的url字符串
        """
        #对键值为字典的转化为str
        for k, v in data.items():
            if isinstance(v, dict):
                data[k] = json.dumps(v)
        # 按key值字母升序排序为列表，方便拼接
        data_lst = sorted([(k, v) for k, v in data.items()])
        if flag:
            request_url_str = "&".join(["{k}={v}".format(k=k, v=quote_plus(v)) for k, v in data_lst])
        else:
            request_url_str = "&".join(["{k}={v}".format(k=k, v=v) for k, v in data_lst])
        return request_url_str

    def rsa_sign(self, data):
        """
        利用商户私钥对待签名字符串进行签名
        :param data: 待签名data，格式bytes
        :return: 生成的签名字符串
        """
        private_key = self.app_private_key
        hash_obj = SHA256.new(data)
        signer = PKCS1_v1_5.new(private_key)
        signature = signer.sign(hash_obj)
        sign = b64encode(signature).decode("utf-8")
        return sign

    def rsa_verify(self, raw_data, signature):
        """
        使用RSA2的验签方法，通过签名字符串、签名参数（经过base64解码）及支付宝公钥验证签名，
        根据返回结果判定是否验签通过
        :param raw_data: 原签名字符串data,格式bytes
        :param signature: 签名参数
        :return: 验签是否通过
        """
        public_key = self.alipay_public_key
        hash_obj = SHA256.new(raw_data)
        verifier = PKCS1_v1_5.new(public_key)

        return verifier.verify(hash_obj, b64decode(signature.encode("utf-8")))


if __name__ == "__main__":
    alipay = Alipay(
        app_id="2016091700535495",
        return_url="http://101.200.32.20:8000/",
        notify_url="http://projectsedus.com/",
        app_private_key_path="../trade/keys/private_2048.txt",
        alipay_public_key_path="../trade/keys/alipay_keys_2048.txt",
    )
    content = alipay.get_biz_content(out_trade_no="201802021232", total_amount=1, subject="测试支付")
    alipay.build_url(content)

    # 根据return_url获取请求参数
    return_url = "http://101.200.32.20:8000/?charset=utf-8&out_trade_no=201702021230&method=alipay.trade.page.pay.return&total_amount=1.00&sign=gvXy%2FXOSOUQupNTn%2Fi%2BdkpqqcDc0Ia8R5lZ2kQRl5UcVb6w83pJqadDPzjdCTLq7%2F4aoIEHhAR6%2FOZwXmsEGWGd2DNynjiGF2mzIpKjDIaGLhdlP9DMIVy%2BIuCfLB7tHC9n1%2BPYoH1YYVWIqO%2B5FLcTh77ucwP66Glq5gFBKpD0b6fiPYlAjxO%2FAIEiyRxSaZS3fj%2BBOhB%2Fo31rjMLa5EOHgvdDeP8OTa01VVJ3wAMBDHyGslj5cShZQwdALyuxjGTFOb0PHFiWEjS828j7ZiTkWiODZ2QFClLE9NHwR6VrlnT0Ttss9Hfu8zwIBMsK3SWt9f32TnmC2wq7hkvMsyg%3D%3D&trade_no=2018082021001004950200556565&auth_app_id=2016091700535495&version=1.0&app_id=2016091700535495&sign_type=RSA2&seller_id=2088102176097894&timestamp=2018-08-20+23%3A23%3A12"
    data = alipay.translate_url(return_url)
    print(alipay.rsa_verify(data[0], data[1]))

遇到的问题:

1. 使用支付提供的验证签名工具一直都是签名失败, 后台发现是它工具版本问题, 导致不能验证成功

　　下载了衣蛾1.4版本就可以成功了

支付宝支付功能接入(PC)

　　验证过程:

一、验签准备
1.原始报文：
【gmt_create=2020-03-25 10:59:32&charset=utf-8&gmt_payment=2020-03-25 10:59:38&notify_time=2020-03-25 10:59:38&subject=仙玉小袋&sign=zs+snU7B3l4Cnec/JWBcXWkFUNWrW1ttEeMZI4X2mtuSNQ9LL9Mri3b6QK0xTc/KMs/Cafk0Ln7iRKQZfnuBvvuaOwVxSgjuWT0ygGktDok0HITE2wKeT8j4SNX4ScIGHLqHXkMojXIZxE6bsfD9kjUb356aFItinf3vURu3FuPSkbJR1KZXDm41hz2rQ9o6Sc3Xs2cr7AbCSVgyGjv5c6G6OiqaXcdgM+FxHtxkhfqB/3awRjXMGmLmWr2m5VyFIfNMOuNCdRN7fNkUBIX3h35KI6av/x6BDYKwTW2zrJHVy91C0h3mrVoDNuRrJ4fPMW2ZH88j7Q3exmPTP0gqMA==&buyer_id=2088002582656381&body=仙玉小袋&invoice_amount=0.01&version=1.0&notify_id=2020032500222105938056380529774436&fund_bill_list=[{"amount":"0.01","fundChannel":"PCREDIT"}]&notify_type=trade_status_sync&out_trade_no=TEST171&total_amount=0.01&trade_status=TRADE_SUCCESS&trade_no=2020032522001456380542497258&auth_app_id=2021001144680325&receipt_amount=0.01&point_amount=0.00&buyer_pay_amount=0.01&app_id=2021001144680325&sign_type=RSA2&seller_id=2088031940831575】
 
2.验签公钥：
【MIIBIjANBgktf9owIDAQAB】
 
3.从报文取出签名值sign：
【zs+snU7B3l4Cnec/JWBcXWkFUNWrW1ttEeMZI4X2mtuSNQ9LL9Mri3b6QK0xTc/KMs/Cafk0Ln7iRKQZfnuBvvuaOwVxSgjuWT0ygGktDok0HITE2wKeT8j4SNX4ScIGHLqHXkMojXIZxE6bsfD9kjUb356aFItinf3vURu3FuPSkbJR1KZXDm41hz2rQ9o6Sc3Xs2cr7AbCSVgyGjv5c6G6OiqaXcdgM+FxHtxkhfqB/3awRjXMGmLmWr2m5VyFIfNMOuNCdRN7fNkUBIX3h35KI6av/x6BDYKwTW2zrJHVy91C0h3mrVoDNuRrJ4fPMW2ZH88j7Q3exmPTP0gqMA==】
 
二、组成待验签串：
1.剔除空值参数：
【gmt_create=2020-03-25 10:59:32&charset=utf-8&gmt_payment=2020-03-25 10:59:38&notify_time=2020-03-25 10:59:38&subject=仙玉小袋&sign=zs+snU7B3l4Cnec/JWBcXWkFUNWrW1ttEeMZI4X2mtuSNQ9LL9Mri3b6QK0xTc/KMs/Cafk0Ln7iRKQZfnuBvvuaOwVxSgjuWT0ygGktDok0HITE2wKeT8j4SNX4ScIGHLqHXkMojXIZxE6bsfD9kjUb356aFItinf3vURu3FuPSkbJR1KZXDm41hz2rQ9o6Sc3Xs2cr7AbCSVgyGjv5c6G6OiqaXcdgM+FxHtxkhfqB/3awRjXMGmLmWr2m5VyFIfNMOuNCdRN7fNkUBIX3h35KI6av/x6BDYKwTW2zrJHVy91C0h3mrVoDNuRrJ4fPMW2ZH88j7Q3exmPTP0gqMA==&buyer_id=2088002582656381&body=仙玉小袋&invoice_amount=0.01&version=1.0&notify_id=2020032500222105938056380529774436&fund_bill_list=[{"amount":"0.01","fundChannel":"PCREDIT"}]&notify_type=trade_status_sync&out_trade_no=TEST171&total_amount=0.01&trade_status=TRADE_SUCCESS&trade_no=2020032522001456380542497258&auth_app_id=2021001144680325&receipt_amount=0.01&point_amount=0.00&buyer_pay_amount=0.01&app_id=2021001144680325&sign_type=RSA2&seller_id=2088031940831575】
 
2.剔除sign、sign_type参数：
【gmt_create=2020-03-25 10:59:32&charset=utf-8&gmt_payment=2020-03-25 10:59:38&notify_time=2020-03-25 10:59:38&subject=仙玉小袋&buyer_id=2088002582656381&body=仙玉小袋&invoice_amount=0.01&version=1.0&notify_id=2020032500222105938056380529774436&fund_bill_list=[{"amount":"0.01","fundChannel":"PCREDIT"}]&notify_type=trade_status_sync&out_trade_no=TEST171&total_amount=0.01&trade_status=TRADE_SUCCESS&trade_no=2020032522001456380542497258&auth_app_id=2021001144680325&receipt_amount=0.01&point_amount=0.00&buyer_pay_amount=0.01&app_id=2021001144680325&seller_id=2088031940831575】
 
3、排序：
【app_id=2021001144680325&auth_app_id=2021001144680325&body=仙玉小袋&buyer_id=2088002582656381&buyer_pay_amount=0.01&charset=utf-8&fund_bill_list=[{"amount":"0.01","fundChannel":"PCREDIT"}]&gmt_create=2020-03-25 10:59:32&gmt_payment=2020-03-25 10:59:38&invoice_amount=0.01&notify_id=2020032500222105938056380529774436&notify_time=2020-03-25 10:59:38&notify_type=trade_status_sync&out_trade_no=TEST171&point_amount=0.00&receipt_amount=0.01&seller_id=2088031940831575&subject=仙玉小袋&total_amount=0.01&trade_no=2020032522001456380542497258&trade_status=TRADE_SUCCESS&version=1.0】
 
三、验签结果：
【验签成功】

校验demo:

from Crypto.PublicKey import RSA
from Crypto.Signature import PKCS1_v1_5
import Crypto.Hash.SHA512
from Crypto.Hash import SHA, SHA256
 
import base64
 
 
 
def rsa2_verify(sign, plaintext, keypath):
    print(‘*‘ * 100)
    print(‘sign =‘, sign)
    with open(keypath) as f:
        key = f.read()
    print(‘plaintext =‘, plaintext)
    hash_value = SHA256.new(plaintext.encode(‘utf-8‘))
    print(‘hash_value =‘, hash_value)
    verifier = PKCS1_v1_5.new(RSA.importKey(key))
    # 验证，通过返回true，失败返回false
    print(‘*‘ * 100)
    return verifier.verify(hash_value, base64.b64decode(sign))
 
if __name__ == ‘__main__‘:
    message = ‘app_id=2021001144680325&auth_app_id=2021001144680325&trade_status=TRADE_SUCCESS&version=1.0‘
 
    publickeyPath = r"H:\alipay\xn\alipay_public.txt" # alipay的公钥 不是app公钥
    result = rsa2_verify(signature, message, publickeyPath)
 
    print(‘result =‘, result)

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