php 和 java共用的加密方法

最新推荐文章于 2021-03-19 04:34:11 发布

转载最新推荐文章于 2021-03-19 04:34:11 发布 · 2.9k 阅读

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#java #php #exception #string #import #byte

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本文介绍了一种使用BouncyCastle库实现PHP与Java跨平台加密的方法，通过具体示例展示了如何利用Blowfish算法进行数据加密和解密的过程。

http://www.php.net/manual/en/ref.mcrypt.php

To have the same result in Java and PHP with the BouncyCastle library :

php

java

import java.security.*; import javax.crypto.*; import javax.crypto.spec.SecretKeySpec; public class tester { public static void crypter(String password) { try { // -- Install jar "bcprov-jdk14-135.jar" in <install_jdk>/jre/lib/ext/ // Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider()); Cipher cipher = Cipher.getInstance("Blowfish/ECB/ZeroBytePadding"); // -- Substring is used to have no problem with key length SecretKeySpec keySpec = new SecretKeySpec(password.substring(0,8).getBytes(), "Blowfish"); cipher.init(Cipher.ENCRYPT_MODE, keySpec); byte[] outText = cipher.doFinal(password.getBytes()); System.out.println(asHex(outText)); } catch (Exception e) { e.printStackTrace(); } } public static String asHex (byte buf[]) { StringBuffer strbuf = new StringBuffer(buf.length * 2); int i; for (i = 0; i < buf.length; i++) { if (((int) buf[i] & 0xff) < 0x10) strbuf.append("0"); strbuf.append(Long.toString((int) buf[i] & 0xff, 16)); } return strbuf.toString(); } public static void main(String[] args) { try { crypter("password"); } catch (Exception e) { e.printStackTrace(); } } }