cryptopp/extras/jni/README.md

Android NDK build files

Building independent library

CryptoPP library can be independently built using just one command:

cd <cryptopp-folder>
ndk-build NDK_PROJECT_PATH=`pwd`/extras

This will build shared library libcryptopp_shared.so in extras/libs/, static library libcryptopp_static.a in extras/obj/, and cryptest.exe binary.

Integrate CryptoPP into application

It is also possible to integrate CryptoPP into applications build process. For example, if application source has the following structure:

├── AndroidManifest.xml
├── java
│   ├── ...
│   └── ...
├── jni
│   ├── Android.mk
│   └── Application.mk
└── res
    ├── ...
    └── ...

• Copy CryptoPP source code (or create git submodule) in jni/cryptopp.

• In application's Android.mk add the desired version of the library.

  For shared version:

    LOCAL_PATH := $(call my-dir)
    LOCAL_PATH_SAVED := $(LOCAL_PATH)
  
    include $(CLEAR_VARS)
    LOCAL_MODULE := my-local-module
    LOCAL_SHARED_LIBRARIES := cryptopp_shared ...
    include $(BUILD_SHARED_LIBRARY)
  
    include $(LOCAL_PATH_SAVED)/cryptopp/extras/jni/cryptopp-shared.mk
  

  For static version:

    LOCAL_PATH := $(call my-dir)
    LOCAL_PATH_SAVED := $(LOCAL_PATH)
  
    include $(CLEAR_VARS)
    LOCAL_MODULE := my-local-module
    LOCAL_STATIC_LIBRARIES := cryptopp_static ...
    include $(BUILD_SHARED_LIBRARY)
  
    include $(LOCAL_PATH_SAVED)/cryptopp/extras/jni/cryptopp-static.mk