Implementation method for Android to obtain MD5 value of APK signature fingerprint (prevent it from being repackaged)

This article describes the implementation method of Android to obtain the MD5 value of APK signature fingerprint to prevent it from being repackaged. Share with you for your reference, as follows:

Make a record (here is only the signature verification of the Java layer. The Java layer is easy to crack. I suggest APK reinforcement)

Obtaining the MD5 value for APK signature verification can prevent APK from being repackaged.

Let me talk about how to get the MD5 value of APK signature (there are three methods)

1. Obtain MD5 value of signature fingerprint with code

2. Keytool tool

Use the keytool tool to obtain the signature MD5 information. The following key is the signature file

3. You can view the signature information in eclipse, which will not be repeated here

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I hope this article will help you in Android programming.