一 , 配置方法：
1、官方站点下载Bouncy Castle的JCE Provider包 bcprov-ext-jdk15-145.jar
2、把jar文件复制到 $JAVA_HOME$\jre\lib\ext 目录下面
3、修改配置文件\jre\lib\security[java.security](http://baike.baidu.com/view/637098.htm)
4, 末尾添加security.provider.7=org.bouncycastle.jce.provider.BouncyCastleProvider
二, 测试程序
public void testBouncyCastle(){
try {
System.out.print("Attempting to get a Blowfish key...");
KeyGenerator keyGenerator=KeyGenerator.getInstance("Blowfish");
keyGenerator.init(128);
SecretKey key=keyGenerator.generateKey();
System.out.println("OK");
System.out.println("Attempting to get a Cipher and encrypt...");
Cipher cipher=Cipher.getInstance("Blowfish/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE,key);
byte[] cipherText=cipher.doFinal("123".getBytes());
System.out.println("OK");
System.out.println("Test completed successfully.");
} catch (Exception e) {
LogUtils.e(TAG,"测试Bouncy Castle 失败.");
}
}
三, 在Android studio中使用之间将包拷贝到工程中, 然后
project structure --> app ---> Dependencies ---> File Denpendency
