验证apk md5

README.md

@@ -73,6 +73,14 @@ Android API Security(.so)，安卓APP/API安全加密so库，防二次打包，
 ###2
 签名验证   application名验证   防护签名校验  Jni验证 
 
+虚拟机/模拟器检查  网络代理/VPN/SSL证书验证
+
+混淆 加固
+
+https://juejin.cn/post/7024695135535366151
+
+https://juejin.cn/post/7001409376745422885
+
 
 
 ![jni属性签名](jni属性签名.jpg)

app/libs/readme.txt

@@ -0,0 +1 @@
+这里的libold.so事apk hook替换签名用

app/src/main/cpp/apisecurity-lib.cpp

@@ -71,6 +71,7 @@ jint getDeviceVersion(JNIEnv *env) {
 //    LOGD("printByte:%s", hexA);
 //}
 
+//签名验证
 char *digest(JNIEnv *env, const char *algorithm, jbyteArray cert_byte) {
     jclass message_digest_class = env->FindClass("java/security/MessageDigest");
     jmethodID methodId = env->GetStaticMethodID(message_digest_class, "getInstance",

app/src/main/java/cn/android/sample/MainActivity.java

@@ -32,7 +32,7 @@ public class MainActivity extends AppCompatActivity {
             public void onClick(View v) {
                 //API签名字符串
                 String aptStr="123456";
-                tv.setText("Sign:" + APISecurity.sign(aptStr));
+                tv.setText("Sign加盐:" + APISecurity.sign(aptStr));
             }
         });
 

防止二改/CheckVirtual.java

@@ -154,7 +154,7 @@ public class CheckVirtual {
     }
 
     /**
-     * Return whether device is emulator.
+     * Return whether device is emulator.模拟器
      *
      * @return {@code true}: yes<br>{@code false}: no
      */