com.fastchar.utils.FastAESUtils Maven / Gradle / Ivy
/**
* 安徽创息软件科技有限公司版权所有 http://www.croshe.com
**/
package com.fastchar.utils;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.SecureRandom;
public class FastAESUtils {
/**
* 加密
* @param content
* @param password
* @return
*/
public static String encrypt(String content, String password) {
try {
KeyGenerator keygen = KeyGenerator.getInstance("AES");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
random.setSeed(password.getBytes());
keygen.init(128, random);
SecretKey original_key = keygen.generateKey();
byte[] raw = original_key.getEncoded();
SecretKey key = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] byte_encode = content.getBytes(StandardCharsets.UTF_8);
byte[] byte_AES = cipher.doFinal(byte_encode);
return new BASE64Encoder().encode(byte_AES);
} catch (Exception ignored) {
}
return null;
}
/**
* 解密
* @param content
* @param password
* @return
*/
public static String decrypt(String content, String password) {
try {
KeyGenerator keygen = KeyGenerator.getInstance("AES");
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
random.setSeed(password.getBytes());
keygen.init(128, random);
SecretKey original_key = keygen.generateKey();
byte[] raw = original_key.getEncoded();
SecretKey key = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] byte_content = new BASE64Decoder().decodeBuffer(content);
byte[] byte_decode = cipher.doFinal(byte_content);
return new String(byte_decode, StandardCharsets.UTF_8);
} catch (Exception ignored) {}
return null;
}
}