X书hmac参数

雨点打透心脏的1/2处 2023-10-12 17:28 6阅读 0赞

被删重新发送

全文可以查看：  
上面一遍unidbg解密shield文章

unidbg - 》 callObjectMethodV方法填写你的小红书路径下s.xml里的值:

![在这里插入图片描述][watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAQ29kZW9vbw_size_20_color_FFFFFF_t_70_g_se_x_16]  
或者在抓包响应头中: 查找xy-ter-str  
![在这里插入图片描述][watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAQ29kZW9vbw_size_20_color_FFFFFF_t_70_g_se_x_16 1]

![在这里插入图片描述][watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAQ29kZW9vbw_size_19_color_FFFFFF_t_70_g_se_x_16]  
hmac 结果都是在，响应头里，所以 hmac 是服务器下发给客户端的.

@Override
        public DvmObject<?> callObjectMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
        
            switch (signature) {
        
                case "android/content/Context->getSharedPreferences(Ljava/lang/String;I)Landroid/content/SharedPreferences;":
                    return vm.resolveClass("android/content/SharedPreferences").newObject(vaList.getObjectArg(0));
                case "android/content/SharedPreferences->getString(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;": {
        
                    if(((StringObject) dvmObject.getValue()).getValue().equals("s")){
        
                        System.out.println("getString :"+vaList.getObjectArg(0).getValue());
                        if (vaList.getObjectArg(0).getValue().equals("main")) {
        
                            return new StringObject(vm, "");
                        }
                        if(vaList.getObjectArg(0).getValue().equals("main_hmac")){
        
                            return  new StringObject(vm, "a9+xPqTwWr7ua8QlDuTyLjvNTAszAxbIhBWeugeCNpcorLQJTUiH6JbLFDrW1cypknldr7izHSeoGQ1HzB6VAVu7iMG6FU1+bEt7/e+9cx6LmeDCOKSapcI9elpXr9ba");
                        }
                    }
                }
                case "okhttp3/Interceptor$Chain->request()Lokhttp3/Request;": {
        
                    DvmClass clazz = vm.resolveClass("okhttp3/Request");
                    return clazz.newObject(request);
                }
                case "okhttp3/Request->url()Lokhttp3/HttpUrl;": {
        
                    DvmClass clazz = vm.resolveClass("okhttp3/HttpUrl");
                    Request request = (Request) dvmObject.getValue();
                    return clazz.newObject(request.url());
                }
                case "okhttp3/HttpUrl->encodedPath()Ljava/lang/String;": {
        
                    HttpUrl httpUrl = (HttpUrl) dvmObject.getValue();
                    return new StringObject(vm, httpUrl.encodedPath());
                }
                case "okhttp3/HttpUrl->encodedQuery()Ljava/lang/String;": {
        
                    HttpUrl httpUrl = (HttpUrl) dvmObject.getValue();
                    return new StringObject(vm, httpUrl.encodedQuery());
                }
                case "okhttp3/Request->body()Lokhttp3/RequestBody;": {
        
                    Request request = (Request) dvmObject.getValue();
                    return vm.resolveClass("okhttp3/RequestBody").newObject(request.body());
                }
                case "okhttp3/Request->headers()Lokhttp3/Headers;": {
        
                    Request request = (Request) dvmObject.getValue();
                    return vm.resolveClass("okhttp3/Headers").newObject(request.headers());
                }
                case "okio/Buffer->writeString(Ljava/lang/String;Ljava/nio/charset/Charset;)Lokio/Buffer;": {
        
                    System.out.println("write to my buffer:"+vaList.getObjectArg(0).getValue());
                    Buffer buffer = (Buffer) dvmObject.getValue();
                    buffer.writeString(vaList.getObjectArg(0).getValue().toString(), (Charset) vaList.getObjectArg(1).getValue());
                    return dvmObject;
                }
                case "okhttp3/Headers->name(I)Ljava/lang/String;": {
        
                    Headers headers = (Headers) dvmObject.getValue();
                    return new StringObject(vm, headers.name(vaList.getIntArg(0)));
                }
                case "okhttp3/Headers->value(I)Ljava/lang/String;": {
        
                    Headers headers = (Headers) dvmObject.getValue();
                    return new StringObject(vm, headers.value(vaList.getIntArg(0)));
                }
                case "okio/Buffer->clone()Lokio/Buffer;": {
        
                    Buffer buffer = (Buffer) dvmObject.getValue();
                    return vm.resolveClass("okio/Buffer").newObject(buffer.clone());
                }
                case "okhttp3/Request->newBuilder()Lokhttp3/Request$Builder;": {
        
                    Request request = (Request) dvmObject.getValue();
                    return vm.resolveClass("okhttp3/Request$Builder").newObject(request.newBuilder());
                }
                case "okhttp3/Request$Builder->header(Ljava/lang/String;Ljava/lang/String;)Lokhttp3/Request$Builder;": {
        
                    Request.Builder builder = (Request.Builder) dvmObject.getValue();
                    builder.header(vaList.getObjectArg(0).getValue().toString(), vaList.getObjectArg(1).getValue().toString());
                    return dvmObject;
                }
                case "okhttp3/Request$Builder->build()Lokhttp3/Request;": {
        
                    Request.Builder builder = (Request.Builder) dvmObject.getValue();
                    return vm.resolveClass("okhttp3/Request").newObject(builder.build());
                }
                case "okhttp3/Interceptor$Chain->proceed(Lokhttp3/Request;)Lokhttp3/Response;": {
        
                    return vm.resolveClass("okhttp3/Response").newObject(null);
                }
            }
    
            return super.callObjectMethodV(vm, dvmObject, signature, vaList);
        }

[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAQ29kZW9vbw_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/788c50347884418ea3622f44ba5fd4e9.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAQ29kZW9vbw==,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAQ29kZW9vbw_size_20_color_FFFFFF_t_70_g_se_x_16 1]: https://img-blog.csdnimg.cn/f0589b2e837b4e949f131cd0d5056cd1.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAQ29kZW9vbw==,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBAQ29kZW9vbw_size_19_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/3464c308b0344a9ba7305c9ba8f3727b.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBAQ29kZW9vbw==,size_19,color_FFFFFF,t_70,g_se,x_16