package com.yeshi.fanli.util;
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import java.io.UnsupportedEncodingException;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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import javax.crypto.BadPaddingException;
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import javax.crypto.Cipher;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.KeyGenerator;
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import javax.crypto.NoSuchPaddingException;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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/**
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* AES加解密
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*
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* @author Administrator
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*
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*/
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public class AESUtil {
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private final static String KEY = "1ww52Ha192109425";
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public static String encrypt(String content) {
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try {
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
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secureRandom.setSeed(KEY.getBytes());
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kgen.init(128, secureRandom);
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SecretKeySpec key = new SecretKeySpec(KEY.getBytes(), "AES");
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Cipher cipher = Cipher.getInstance("AES");
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byte[] byteContent = content.getBytes("utf-8");
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cipher.init(Cipher.ENCRYPT_MODE, key);
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byte[] result = cipher.doFinal(byteContent);
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return (new sun.misc.BASE64Encoder()).encode(result);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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}
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return new String();
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}
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public static String encrypt(String content,String keyStr) {
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try {
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
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secureRandom.setSeed(keyStr.getBytes());
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kgen.init(128, secureRandom);
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SecretKeySpec key = new SecretKeySpec(keyStr.getBytes(), "AES");
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Cipher cipher = Cipher.getInstance("AES");
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byte[] byteContent = content.getBytes("utf-8");
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cipher.init(Cipher.ENCRYPT_MODE, key);
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byte[] result = cipher.doFinal(byteContent);
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return (new sun.misc.BASE64Encoder()).encode(result);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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}
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return new String();
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}
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public static String decrypt(String contentStr) {
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try {
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byte[] content = (new sun.misc.BASE64Decoder()).decodeBuffer(contentStr);
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
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secureRandom.setSeed(KEY.getBytes());
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kgen.init(128, secureRandom);
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SecretKeySpec key = new SecretKeySpec(KEY.getBytes(), "AES");
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Cipher cipher = Cipher.getInstance("AES");
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cipher.init(Cipher.DECRYPT_MODE, key);
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byte[] result = cipher.doFinal(content);
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return new String(result);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return new String();
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}
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public static String decrypt(String contentStr,String keyStr) {
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try {
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byte[] content = (new sun.misc.BASE64Decoder()).decodeBuffer(contentStr);
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
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secureRandom.setSeed(keyStr.getBytes());
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kgen.init(128, secureRandom);
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SecretKeySpec key = new SecretKeySpec(keyStr.getBytes(), "AES");
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Cipher cipher = Cipher.getInstance("AES");
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cipher.init(Cipher.DECRYPT_MODE, key);
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byte[] result = cipher.doFinal(content);
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return new String(result);
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return new String();
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}
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public static String decrypt(String contentStr, String keyBase64, String ivBase64) {
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try {
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byte[] content = (new sun.misc.BASE64Decoder()).decodeBuffer(contentStr);
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IvParameterSpec iv = new IvParameterSpec((new sun.misc.BASE64Decoder()).decodeBuffer(ivBase64));
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SecretKeySpec skeySpec = new SecretKeySpec((new sun.misc.BASE64Decoder()).decodeBuffer(keyBase64), "AES");
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7PADDING");
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cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
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byte[] original = cipher.doFinal(content);
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return new String(original);
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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return null;
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}
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public static String decrypt(byte[] contentStr, String k) {
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try {
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byte[] content = contentStr;
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KeyGenerator kgen = KeyGenerator.getInstance("AES");
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SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
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secureRandom.setSeed(k.getBytes());
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kgen.init(128, secureRandom);
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SecretKeySpec key = new SecretKeySpec(k.getBytes(), "AES");
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Cipher cipher = Cipher.getInstance("AES");
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cipher.init(Cipher.DECRYPT_MODE, key);
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byte[] result = cipher.doFinal(content);
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return new String(result, "utf-8");
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return new String();
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}
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}
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