加密mac算法

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.codec.digest.HmacAlgorithms;
import org.apache.commons.codec.digest.HmacUtils;

import javax.crypto.KeyGenerator;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.Objects;

public /**
 * MAC 算法测试
 */
class MacTest {
    public static void main(String[] args) throws NoSuchAlgorithmException, DecoderException, InvalidKeyException {
        // 待加密字符
        String originalStr = "yaochunhui123456";
        System.out.println(String.format("待加密字符: %s", originalStr));

        // 已加密字符
        String alreadyDigestStr = "7720C2EEFE4F1037B006025ECECBEF49";
        System.out.println(String.format("已加密字符: %s", alreadyDigestStr));

        /* jdk 实现 */
        // 初始化 KeyGenerator, jdk 提供 HmacMD5、HmacSHA1、HmacSHA256、HmacSHA384和 HmacSHA512 四种算法
//        KeyGenerator keyGenerator = KeyGenerator.getInstance("HmacMD5");
        // 产生密钥
//        SecretKey secretKey = keyGenerator.generateKey();
        // 默认密钥
        // byte[] defaultKey = secretKey.getEncoded();
        // 自定义密钥
        byte[] myKey = Hex.decodeHex(new char[]{'b','b','b','b','b','b','b','b','b','b'});
        // 还原密钥
        SecretKey restoreSecretKey = new SecretKeySpec(myKey, "HmacMD5");
        // 实例化 MAC
        Mac mac = Mac.getInstance(restoreSecretKey.getAlgorithm());
        // 初始化 MAC
        mac.init(restoreSecretKey);
        //执行摘要
        byte[] hmacMD5Bytes = mac.doFinal(originalStr.getBytes());
        String encodeHexString = Hex.encodeHexString(hmacMD5Bytes).toUpperCase();
        System.out.println(String.format("%s 加密结果：%s", originalStr, encodeHexString));
        System.out.println(String.format("验证结果：%b", Objects.equals(encodeHexString, alreadyDigestStr)));


        /* apache 实现 */
        // HmacMD5
        HmacUtils hmacMd5 = new HmacUtils(HmacAlgorithms.HMAC_MD5, myKey);
        String apacheHmacMd5 = hmacMd5.hmacHex(originalStr.getBytes()).toUpperCase();
        System.out.println(String.format("%s 加密结果：%s", originalStr, apacheHmacMd5));
        System.out.println(String.format("验证结果：%b", Objects.equals(apacheHmacMd5, alreadyDigestStr)));

        // HmacSHA1
        HmacUtils hmacSha1 = new HmacUtils(HmacAlgorithms.HMAC_SHA_1, KeyGenerator.getInstance(HmacAlgorithms.HMAC_SHA_1.getName()).generateKey().getEncoded());
        String apacheHmacHex1 = hmacSha1.hmacHex(originalStr.getBytes()).toUpperCase();
        System.out.println(String.format("%s 加密结果：%s", originalStr, apacheHmacHex1));

        // HmacSHA256
        HmacUtils hmacSha256 = new HmacUtils(HmacAlgorithms.HMAC_SHA_256, KeyGenerator.getInstance(HmacAlgorithms.HMAC_SHA_256.getName()).generateKey().getEncoded());
        String apacheHmacSha256 = hmacSha256.hmacHex(originalStr.getBytes()).toUpperCase();
        System.out.println(String.format("%s 加密结果：%s", originalStr, apacheHmacSha256));

        // HmacSHA384 , 类似上面

        // HmacSHA512， 类似上面
    }
}