AES加密、解密(linux、window加密解密效果一致,支持中文)
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2022-04-10 12:02:37
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import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.apache.axis.encoding.Base64;
public class AES {
private static int length=128;
/**
* 加密
*
* @param content
* 需要加密的内容
* @param password
* 加密密码
* @return
* @throws NoSuchAlgorithmException
* @throws NoSuchPaddingException
* @throws UnsupportedEncodingException
* @throws InvalidKeyException
* @throws BadPaddingException
* @throws IllegalBlockSizeException
*/
private static byte[] encrypt(String content, String password)
throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
secureRandom.setSeed(password.getBytes());
kgen.init(length, secureRandom);
SecretKey secretKey = kgen.generateKey();
byte[] enCodeFormat = secretKey.getEncoded();
SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
Cipher cipher = Cipher.getInstance("AES");// 创建密码器
byte[] byteContent = content.getBytes("utf-8");
cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化
byte[] result = cipher.doFinal(byteContent);
return result; // 加密
}
/**
* 解密
*
* @param content
* 待解密内容
* @param password
* 解***
* @return
*/
private static byte[] decrypt(byte[] content, String password)
throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG" );
secureRandom.setSeed(password.getBytes());
kgen.init(length, secureRandom);
SecretKey secretKey = kgen.generateKey();
byte[] enCodeFormat = secretKey.getEncoded();
SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
Cipher cipher = Cipher.getInstance("AES");// 创建密码器
cipher.init(Cipher.DECRYPT_MODE, key);// 初始化
byte[] result = cipher.doFinal(content);
return result; // 加密
}
// /**
// * 将二进制转换成16进制
// *
// * @param buf
// * @return
// */
// public static String parseByte2HexStr(byte buf[]) {
// StringBuffer sb = new StringBuffer();
// for (int i = 0; i < buf.length; i++) {
// String hex = Integer.toHexString(buf[i] & 0xFF);
// if (hex.length() == 1) {
// hex = '0' + hex;
// }
// sb.append(hex.toUpperCase());
// }
// return sb.toString();
// }
//
// /**
// * 将16进制转换为二进制
// *
// * @param hexStr
// * @return
// */
// public static byte[] parseHexStr2Byte(String hexStr) {
// if (hexStr.length() < 1)
// return null;
// byte[] result = new byte[hexStr.length() / 2];
// for (int i = 0; i < hexStr.length() / 2; i++) {
// int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);
// int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2),
// 16);
// result[i] = (byte) (high * 16 + low);
// }
// return result;
// }
/**
* 加密
*
* @param content
* 需要加密的内容
* @param password
* 加密密码
* @return
*/
public static byte[] encrypt2(String content, String password) {
try {
SecretKeySpec key = new SecretKeySpec(password.getBytes(), "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
byte[] byteContent = content.getBytes("utf-8");
cipher.init(Cipher.ENCRYPT_MODE, key);// 初始化
byte[] result = cipher.doFinal(byteContent);
return result; // 加密
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (NoSuchPaddingException e) {
e.printStackTrace();
} catch (InvalidKeyException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (IllegalBlockSizeException e) {
e.printStackTrace();
} catch (BadPaddingException e) {
e.printStackTrace();
}
return null;
}
public static String encrypt2Str(String content, String password) throws Exception {
byte[] encryptResult = encrypt(content, password);
return Base64.encode(encryptResult);
}
public static String decrypt2Str(String content, String password) throws Exception {
byte[] decryptResult = decrypt(Base64.decode(content), password);
return new String(decryptResult,"UTF-8");
}
public static void main(String[] args) throws Exception {
String content = "t太阳est地";
String password = "12345678";
// 加密
System.out.println("加密前:" + content);
String tt4 = encrypt2Str(content, password);
System.out.println(new String(tt4));
// 解密
String d = decrypt2Str(tt4, password);
System.out.println("解密后:" + d);
// 加密前:t太阳est地
// Bpf0jyJDj/pVHaRf66+OMA==
// 解密后:t太阳est地
}
}
其中的org.apache.axis.encoding.Base64,可以直接用附件中的Base64代替(直接从axis反编译而得)
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