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@@ -0,0 +1,59 @@
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+package io.jpress.utils;
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+/**
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+ * Created by A007 on 2016/12/29.
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+ * 北京滔米科技有限公司 CloudPass项目
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+ */
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+
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+import javax.crypto.Cipher;
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+import javax.crypto.SecretKey;
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+import javax.crypto.SecretKeyFactory;
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+import javax.crypto.spec.DESKeySpec;
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+import java.security.SecureRandom;
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+
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+/**
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+ * 解密
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+ */
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+public class MyDecryptUtils {
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+ /**
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+ * 对数据进行DES加密.
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+ * @param data 待进行DES加密的数据
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+ * @return 返回经过DES加密后的数据
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+ * @throws Exception
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+ * @author <a href="mailto:xiexingxing1121@126.com" mce_href="mailto:xiexingxing1121@126.com">AmigoXie</a>
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+ * Creation date: 2007-7-31 - 下午12:06:24
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+ */
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+ public final static String decrypt(String data) throws Exception {
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+ return new String(decrypt(hex2byte(data.getBytes()),"kEHrDooxWHCWtfeSxvDvgqZq".getBytes()));
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+ }
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+
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+
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+ private static byte[] decrypt(byte[] data, byte[] key) throws Exception {
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+ // DES算法要求有一个可信任的随机数源
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+ SecureRandom sr = new SecureRandom();
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+ // 从原始密匙数据创建一个DESKeySpec对象
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+ DESKeySpec dks = new DESKeySpec(key);
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+ // 创建一个密匙工厂，然后用它把DESKeySpec对象转换成
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+ // 一个SecretKey对象
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+ SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
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+ SecretKey securekey = keyFactory.generateSecret(dks);
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+ // Cipher对象实际完成解密操作
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+ Cipher cipher = Cipher.getInstance("DES");
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+ // 用密匙初始化Cipher对象
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+ cipher.init(Cipher.DECRYPT_MODE, securekey, sr);
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+ // 现在，获取数据并解密
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+ // 正式执行解密操作
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+ return cipher.doFinal(data);
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+ }
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+ public static byte[] hex2byte(byte[] b) {
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+ if ((b.length % 2) != 0)
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+ throw new IllegalArgumentException("长度不是偶数");
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+ byte[] b2 = new byte[b.length / 2];
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+ for (int n = 0; n < b.length; n += 2) {
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+ String item = new String(b, n, 2);
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+ b2[n / 2] = (byte) Integer.parseInt(item, 16);
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+ }
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+ return b2;
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+ }
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+
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+
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+}
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huangct