import org.apache.commons.codec.binary.Base64;
import org.springframework.util.StringUtils;
import sun.misc.BASE64Decoder;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import java.math.BigInteger;
public class AESUtils {
private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
public static String binary(byte[] bytes, int radix) {
return new BigInteger(1, bytes).toString(radix);
}
public static String base64Encode(byte[] bytes) {
return Base64.encodeBase64String(bytes);
}
public static byte[] base64Decode(String base64Code) throws Exception {
return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
}
public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));
return cipher.doFinal(content.getBytes("utf-8"));
}
public static String Encrypt(String content, String encryptKey) throws Exception {
return base64Encode(aesEncryptToBytes(content, encryptKey));
}
public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
byte[] decryptBytes = cipher.doFinal(encryptBytes);
return new String(decryptBytes);
}
public static String Decrypt(String encryptStr, String decryptKey) throws Exception {
return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);
}
public static void main(String[] args) {
try {
String caibaoxitong = AESUtils.Encrypt("caibaoxitong", "1234567812345678");
System.out.println(caibaoxitong);
} catch (Exception e) {
e.printStackTrace();
}
}
}