AES暗号化と復号化
3386 ワード
詳細
これは実は私たちのプロジェクトの中のツールクラスで、みんなに分かち合います.
aesツールクラスは次のとおりです.
これは実は私たちのプロジェクトの中のツールクラスで、みんなに分かち合います.
aesツールクラスは次のとおりです.
package com.*;
import java.net.URLEncoder;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class AesUtil {
private static BASE64Encoder base64Encoder;
private static BASE64Decoder base64Decoder;
private static IvParameterSpec iv;
private static String CipherType = "AES/CBC/PKCS5Padding"; //" / /
static {
base64Decoder = new BASE64Decoder();
base64Encoder = new BASE64Encoder();
iv = new IvParameterSpec("0102030405060708".getBytes());// CBC , iv,
}
//
public static String Encrypt(String sSrc,String sKey) throws Exception {
if (sKey == null) {
System.out.print("Key null");
return null;
}
// Key 16
if (sKey.length() != 16) {
System.out.print("Key 16 ");
return null;
}
byte[] raw = sKey.getBytes("UTF-8");
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance(CipherType);
cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
byte[] encrypted = cipher.doFinal(sSrc.getBytes("UTF-8"));
return base64Encoder.encode(encrypted);// BASE64 , 2 。
}
//
public static String Decrypt(String sSrc,String sKey) throws Exception {
/*sSrc = new String(sSrc.getBytes(),"UTF-8");*/
try {
// Key
if (sKey == null) {
System.out.print("Key null");
return null;
}
// Key 16
if (sKey.length() != 16) {
System.out.print("Key 16 ");
return null;
}
byte[] raw = sKey.getBytes("UTF-8");
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance(CipherType);
cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
byte[] encrypted1 = base64Decoder.decodeBuffer(sSrc);// base64
try {
byte[] original = cipher.doFinal(encrypted1);
return new String(original,"UTF-8");
} catch (Exception e) {
System.out.println(e.toString());
return null;
}
} catch (Exception ex) {
System.out.println(ex.toString());
return null;
}
}
public static void main(String[] args) throws Exception {
System.out.println(Encrypt("hello,word","11asd11111111111"));
System.out.println(Decrypt(String.valueOf("qmesIijZCkQ8YL6GN1YEiQ=="),"11asd11111111111"));
}
}