105 lines
3.2 KiB
Java
105 lines
3.2 KiB
Java
package com.zhgd.xmgl.util;
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import lombok.extern.slf4j.Slf4j;
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import javax.crypto.Mac;
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import javax.crypto.spec.SecretKeySpec;
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import java.io.UnsupportedEncodingException;
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import java.security.InvalidKeyException;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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/**
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* Created by jim.z.hu on 2018/7/11.
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*/
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@Slf4j
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public class EncriptionHelper {
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/**
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* 利用java原生的摘要实现SHA256加密
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*
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* @param str 加密后的报文
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* @return
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*/
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public static String getSHA256StrJava(String str) {
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MessageDigest messageDigest;
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String encodeStr = "";
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try {
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messageDigest = MessageDigest.getInstance("SHA-256");
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messageDigest.update(str.getBytes("UTF-8"));
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encodeStr = byte2Hex(messageDigest.digest());
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} catch (NoSuchAlgorithmException e) {
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log.error("error：", e);
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} catch (UnsupportedEncodingException e) {
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log.error("error：", e);
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}
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return encodeStr;
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}
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public static String HMACSHA256(String data, String key) {
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String outPut = "";
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try {
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Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
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SecretKeySpec secret_key = new SecretKeySpec(key.getBytes(), "HmacSHA256");
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sha256_HMAC.init(secret_key);
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byte[] bytes = sha256_HMAC.doFinal(data.getBytes());
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outPut = byteArrayToHexString(bytes);
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} catch (NoSuchAlgorithmException e) {
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log.error("error：", e);
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} catch (InvalidKeyException e) {
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log.error("error：", e);
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}
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return outPut.toUpperCase();
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}
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public static String byteArrayToHexString(byte[] b) {
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StringBuilder sb = new StringBuilder();
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String stmp;
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for (int n = 0; b != null && n < b.length; n++) {
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stmp = Integer.toHexString(b[n] & 0XFF);
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if (stmp.length() == 1) {
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sb.append('0');
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}
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sb.append(stmp);
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}
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return sb.toString().toLowerCase();
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}
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/**
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* sha256_HMAC加密
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*
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* @param message 消息
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* @param secret 秘钥
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* @return 加密后字符串
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*/
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public static String sha256_HMAC(String message, String secret) {
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String hash = "";
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try {
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Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
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SecretKeySpec secret_key = new SecretKeySpec(secret.getBytes(), "HmacSHA256");
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sha256_HMAC.init(secret_key);
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byte[] bytes = sha256_HMAC.doFinal(message.getBytes());
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hash = byteArrayToHexString(bytes);
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} catch (Exception e) {
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log.info("Error HmacSHA256 ===========" + e.getMessage());
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}
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return hash;
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}
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private static String byte2Hex(byte[] bytes) {
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StringBuffer stringBuffer = new StringBuffer();
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String temp = null;
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for (int i = 0; i < bytes.length; i++) {
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temp = Integer.toHexString(bytes[i] & 0xFF);
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if (temp.length() == 1) {
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//1得到一位的进行补0操作
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stringBuffer.append("0");
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}
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stringBuffer.append(temp);
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}
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return stringBuffer.toString();
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}
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}
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