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jiaqidianbo 2015-09-23 09:38:43 +08:00
/**
* 解密算法 * cryptograph:密文 */ public static String decrypt(String cryptograph) throws Exception{ /** 将文件中的私钥对象读出 */ ObjectInputStream ois = new ObjectInputStream(new FileInputStream(PRIVATE_KEY_FILE)); Key key = (Key) ois.readObject(); /** 得到 Cipher 对象对已用公钥加密的数据进行 RSA 解密 */ Cipher cipher = Cipher.getInstance(ALGORITHM); cipher.init(Cipher.DECRYPT_MODE, key); BASE64Decoder decoder = new BASE64Decoder(); byte[] b1 = decoder.decodeBuffer(cryptograph); /** 执行解密操作 */ byte[] b = cipher.doFinal(b1); return new String(b); } public static void main(String[] args) throws Exception { String source = "火车";//要加密的字符串 System.out.println("要加密的字符串:"+source); String cryptograph = encrypt(source);//生成的密文 System.out.println("生成的密文:"+cryptograph+"=================="); String target = decrypt(cryptograph);//解密密文 System.out.println("解密密文:"+target+"------------------------"); } } |