如何将Crypto ++与Jni或NDK一起用于Android应用程序

Question

I download from Crypto++ Here . I find some way to build it with visual studio. So I don't know how to use it for our Android application with jni or Ndk.

Answer 1

The Crypto++ wiki has a page with build instructions from the command line at Android (Command Line) . The steps are:

• Modify the source files to accommodate Android
• Modify the GNUmakefile to accommodate Android
• Set a cross compile environment via setenv-android.sh
• Run make

The process will create the various libraries and show you how to build cryptest.exe and verify the library on a device. But you will still need to create you wrapper project using Android's build system.

Piotr Morgwai Kotarbiński has a page on building the Crypto++ library with Android's modified build system. See Building Crypto++ with NDK toolchain . I don't believe Piotr's article verifies the library on a device.

Answer 2

First of all, and it generally goes without saying - read the manual of crypto++ on the desired subject (Android usage). Previous answers have kindly provided the links to the required documentation.

You should cross-compile the library for your desired linkage type (static/dynamic) - for that purpose you should create and Android.mk, which will describe the compilation process of the lib and then you should add that Android.mk to your main Android.mk as a module.

Alternatively you can search for a prebuilt binary and include this one in you Android.mk.

The process is not specific to crypto++, it's just the way to go with NDK.