android JNI RSA 3DES BASE64 加解密实现
android JNI RSA 3DES BASE64 加解密实现
2017-08-07 更新
1、解决 部分rsa 加密失败，解密失败的问题
2、最新加入多架构支持，armeabi armeabi-v7a x86 mips
多谢网友反馈，修复bug
最新的代码连接：http://download.csdn.net/download/gao1040841994/9934340
2016-12-8 最新代码，基于Androidstudio 编译
鉴于之前c 代码用eclispe 编译，不太方便，现在已经 是 studio时代，重新写了一份demo，供大家参考。
开发工具：Android studio
库： openssl
编译环境： mac os
jni开发语言：C++
包含加密种类：RSA 3DES AES MD5 BASE64
此次基于android studio 的CmakeList 方式编译。
不会的话，可以看看这位大神的博客，写的很详细
http://blog.csdn.net/wzzfeitian/article/details/40963457/
还有不少示例，看懂了就没问题了。
gradle 配置：
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.0"
defaultConfig {
applicationId "demo.rsa.gkbn.rsademo"
minSdkVersion 15
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
externalNativeBuild {
cmake {
cppFlags "-std=c++11 -frtti -fexceptions"
abiFilters "armeabi"
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
externalNativeBuild {
cmake {
path "CMakeLists.txt"
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.0.0'
testCompile 'junit:junit:4.12'
}
CmakeList 文件配置：
cmake_minimum_required(VERSION 3.4.1)
#导入头文件路径
INCLUDE_DIRECTORIES(
src/main/cpp/openssllib/include/openssl/
)
#链接库文件路径（.a .so 文件）
LINK_DIRECTORIES(src/main/cpp/openssllib/)
#编译源代码
ADD_LIBRARY(native SHARED src/main/cpp/native-lib.cpp src/main/cpp/MyRSA.cpp src/main/cpp/MyBASE64.cpp src/main/cpp/My3DES.cpp src/main/cpp/MyMD5.cpp src/main/cpp/MyAES.cpp)
#链接Android 日志库文件
find_library( log-lib log)
#编译.so 文件
TARGET_LINK_LIBRARIES( native libcrypto.a libssl.a ${log-lib}) # 链接动态库
工程目录：
native文件：
#include
#include
#include "MyRSA.h"
#include
#include
#include "MyBASE64.h"
#include "My3DES.h"
#include "MyMD5.h"
#include "Log.h"
#include "MyAES.h"
extern "C" {
__attribute ((visibility ("default")))
JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void *reserved) //这是JNI_OnLoad的声明，必须按照这样的方式声明
{
return JNI_VERSION_1_4; //这里很重要，必须返回版本，否则加载会失败。
}
__attribute ((visibility ("default")))
JNIEXPORT void JNICALL JNI_OnUnload(JavaVM *vm, void *reserved) {
// __android_log_print(ANDROID_LOG_ERROR, "tag", "library was unload");
}
/**
* base64加密
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_encryptBase64(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string base64 = MyBASE64::base64_encodestring(msgC);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(base64.c_str());
}
/**
* base64 解密
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_decryptBase64(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string base64 = MyBASE64::base64_decodestring(msgC);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(base64.c_str());
}
/**
* MD5加密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_MD5(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string f = MyMD5::encryptMD5(msgC);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(f.c_str());
}
/**
* AES加密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_encodeAES(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string aes = MyAES::encodeAES("1234567812345678", msgC);//密码长度必须大于16 位
std::string base64 = MyBASE64::base64_encodestring(aes);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(base64.c_str());
}
/**
* AES解密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_decodeAES(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
int length;
std::string base64 = MyBASE64::base64_decodestring(msgC);
std::string aes = MyAES::decodeAES("1234567812345678", base64);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(aes.c_str());
}
/**
* DES加密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_encryptDES(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
int length;
std::string key = "12345678";
std::string des = My3DES::encryptDES(msgC, key, &length);
std::string base64 = MyBASE64::base64_encodestring(des);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(base64.c_str());
}
/**
*
* DES解密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_decryptDES(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string key = "12345678";
int length;
std::string base64 = MyBASE64::base64_decodestring(msgC);
std::string des = My3DES::decryptDES(base64, key, base64.length());
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(des.c_str());
}
/**
* RSA解密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_decryptRSA(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string base64 = MyBASE64::base64_decodestring(msgC);
std::string rsa = MyRSA::decryptRSA(base64);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(rsa.c_str());
}
/**
* RSA 加密算法
*/
__attribute ((visibility ("default")))
JNIEXPORT jstring JNICALL
Java_demo_rsa_gkbn_rsademo_JniDemo_encryptRSA(JNIEnv *env, jobject instance, jstring msg_) {
const char *msg = env->GetStringUTFChars(msg_, 0);
std::string msgC;
msgC.assign(msg);
std::string rsa = MyRSA::encryptRSA(msgC, NULL);
std::string base64 = MyBASE64::base64_encodestring(rsa);
env->ReleaseStringUTFChars(msg_, msg);
return env->NewStringUTF(base64.c_str());
}
} 此工程是楼主花了几天心血完成。其他代码太多，请下载demo自行查看，顺便送点积分吧。
工程demo 地址：
http://download.csdn.net/detail/gao1040841994/9705385
基于openssl ，实现androidRSA 3DES BASE64 jni加解密
客户端：使用公钥，加密动态生成的3DES秘钥，用3des秘钥加密报文。拼接报文
服务器：使用私钥，解密到3des秘钥后，用3des秘钥加密报文并返回，改秘钥加密的数据给客户端
java 代码
private byte[] bkey;
// java 动态层生成的 3des 秘钥的 二进制数据，
如果你的项目 3des 秘钥是写死的 ，那恭喜你，直接在c 代码里面写死
static {
System.loadLibrary("demo");
}
public native String Encrypt( byte[] deskey,String msg,);
public native int Decrypt(String src, byte[] deskey);
public ConnectionTask(byte[] bkey2){
KeyGenerator kg = KeyGenerator.getInstance("DESede");
kg.init(168);
//生成秘密密钥
SecretKey secretKey = kg.generateKey();
//获得密钥的二进制编码形式
bkey=secretKey.getEncoded();
}C 语言代码
#include 附demo代码地址：http://download.csdn.net/detail/gao1040841994/9630750