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server - GeneralSecurityException：无效的签名。(RewardedAdsVerifier - SSV)

问题描述

我清楚地遵循了这个指令：https ://developers.google.com/admob/ios/rewarded-video-ssv#ssv_callback_parameters

我的服务器 - spring v2.1.10 (maven)，为了实现服务器验证，我使用了：

    <dependency>
        <groupId>com.google.crypto.tink</groupId>
        <artifactId>apps-rewardedads</artifactId>
        <version>HEAD-SNAPSHOT</version>
    </dependency>
    <dependency>

<dependency>
    <groupId>com.google.crypto.tink</groupId>
    <artifactId>tink</artifactId>
    <version>1.2.2</version>
</dependency>

RewardedAdsVerifier.class > https://github.com/google/tink/blob/master/apps/rewardedads/src/main/java/com/google/crypto/tink/apps/rewardedads/RewardedAdsVerifier.java

CryptoTinkLibrary > https://github.com/google/tink

在主机上填充服务器，我开始在站点 admob.com 上进行配置和检查，但收到 HTTP 错误 404，在服务器上我收到以下异常：

java.security.GeneralSecurityException: Invalid signature
    at com.google.crypto.tink.subtle.EcdsaVerifyJce.verify(EcdsaVerifyJce.java:68)
    at com.google.crypto.tink.apps.rewardedads.RewardedAdsVerifier.verify(RewardedAdsVerifier.java:166)
    at com.google.crypto.tink.apps.rewardedads.RewardedAdsVerifier.verify(RewardedAdsVerifier.java:151)
    at com.appsbybananni.luckybitcoin.services.rewards.RewardService.getLowReward(RewardService.java:44)
    at com.appsbybananni.luckybitcoin.controllers.user.ControllerUser.getLowRewards(ControllerUser.java:113)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:893)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:798)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:94)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:748)

Signature 和 key_id 有效，由 admob 提供。第二天我找不到解决这个问题的方法。请帮我。

我的控制器：

        @RequestMapping(path = "/get_low_reward")
    public void getLowRewards(@RequestParam(required = false) String user_id,
                              @RequestParam(required = false) String ad_network,
                              @RequestParam(required = false) String ad_unit,
                              @RequestParam(required = false) String timestamp,
                              @RequestParam(required = false) String transaction_id,
                              @RequestParam(required = false) String signature,
                              @RequestParam(required = false) String key_id)  {
        String rewardUrl = "https://my.server.ru/path?"
                + "ad_network=" + ad_network
                + "&ad_unit=" + ad_unit
                + "&user_id=" + user_id
                + "&timestamp=" + timestamp
                + "&transaction_id" + transaction_id
                + "&signature=" + signature
                + "&key_id=" + key_id;
        RewardService rewardService = new RewardService(userRepository, generalSettingsRepository);
        rewardService.getLowReward(rewardUrl, user_id);

然后执行这段代码：

  try {
                RewardedAdsVerifier verifier = new RewardedAdsVerifier.Builder()
                        .fetchVerifyingPublicKeysWith(RewardedAdsVerifier.KEYS_DOWNLOADER_INSTANCE_PROD)
                        .build();
                verifier.verify(rewardUrl);
                .....

标签： serveradmobsignature

解决方案

我终于找到了原因。我知道帖子很旧，但有人可能需要它。

首先，确保您使用的编码每个参数

URLEncoder.encode(param, StandardCharsets.UTF_8);

其次，确保您使用正确的配置。

  1. 安卓
  2. iOS
  3. 统一

不同平台有 3 种不同的设置要求，AdMob 应用上的平台应与您使用的设置相匹配。

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