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import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
/**
* Created by wangrui on 2016/4/5.
*/
public class AESOperator {
/*
* 加密用的Key 可以用26个字母和数字组成 此处使用AES-128-CBC加密模式,key需要为16位。
*/
private static String ivParameter = "0392039203920300";
public static String encrypt(String encData, String secretKey, String vector) throws Exception {
if (secretKey == null) {
return null;
}
if (secretKey.length() != 16) {
return null;
}
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] raw = secretKey.getBytes();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
// 使用CBC模式,需要一个向量iv,可增加加密算法的强度
IvParameterSpec iv = new IvParameterSpec(vector.getBytes());
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(encData.getBytes("utf-8"));
// 此处使用BASE64做转码。
return Base64.encode(encrypted);
}
/**
* 加密算法
*
* @param sSrc
* @param key
* @return
* @throws Exception
*/
public static String encrypt(String sSrc, String key) throws Exception {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
byte[] raw = key.getBytes();
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());// 使用CBC模式,需要一个向量iv,可增加加密算法的强度
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
return Base64.encode(encrypted);// 此处使用BASE64做转码。
}
// 解密
public static String decrypt(String sSrc, String key) throws Exception {
try {
byte[] raw = key.getBytes("ASCII");
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
IvParameterSpec iv = new IvParameterSpec(ivParameter.getBytes());
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
byte[] encrypted1 = Base64.decode(sSrc);// 先用base64解密
byte[] original = cipher.doFinal(encrypted1);
String originalString = new String(original, "utf-8");
return originalString;
} catch (Exception ex) {
return null;
}
}
public String decrypt(String sSrc, String key, String ivs) throws Exception {
try {
byte[] raw = key.getBytes("ASCII");
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
IvParameterSpec iv = new IvParameterSpec(ivs.getBytes());
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
byte[] encrypted1 = Base64.decode(sSrc);// 先用base64解密
byte[] original = cipher.doFinal(encrypted1);
String originalString = new String(original, "utf-8");
return originalString;
} catch (Exception ex) {
return null;
}
}
public static String encodeBytes(byte[] bytes) {
StringBuffer strBuf = new StringBuffer();
for (int i = 0; i < bytes.length; i++) {
strBuf.append((char) (((bytes[i] >> 4) & 0xF) + ((int) 'a')));
strBuf.append((char) (((bytes[i]) & 0xF) + ((int) 'a')));
}
return strBuf.toString();
}
public static void main(String[] args) throws Exception {
// 需要加密的字串
String cSrc = "13888888888";
String key = "smkldospdosldaaa";
// 加密
long start = System.currentTimeMillis();
String enString = AESOperator.encrypt(cSrc, key);
System.out.println("加密后的字串是:" + enString + "====" + enString.length());
long end = System.currentTimeMillis();
System.out.println("耗时==" + (end - start) / 1000.0 + "秒");
// long lUseTime = System.currentTimeMillis() - lStart;
// System.out.println("加密耗时:" + lUseTime + "毫秒");
// // 解密
// enString="FPVCzNlCv8Ipy5ZgML4ERAstWXZ7kkTCELWfxTBcq2g=";
// lStart = System.currentTimeMillis();
// String DeString = AESOperator.decrypt(enString, key);
// System.out.println("解密后的字串是:" + DeString);
// lUseTime = System.currentTimeMillis() - lStart;
// System.out.println("解密耗时:" + lUseTime + "毫秒");
// System.out.println("##################");
//
// System.out.println(AESOperator.encrypt("{\"phoneno\":\"15001971052\",\"paramkey\":\"0\",\"flag\":false}", "1291587967818735"));
}
class A {
}
}
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