org.apache.shiro.biz.utils.HmacSHA256Utils Maven / Gradle / Ivy
/*
* Copyright (c) 2018, hiwepy (https://github.com/hiwepy).
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.apache.shiro.biz.utils;
import org.apache.shiro.codec.Hex;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.util.List;
import java.util.Map;
/**
* User: Zhang Kaitao
*
Date: 14-2-26
*
Version: 1.0
*/
public class HmacSHA256Utils {
public static String digest(String key, String content) {
try {
Mac mac = Mac.getInstance("HmacSHA256");
byte[] secretByte = key.getBytes("utf-8");
byte[] dataBytes = content.getBytes("utf-8");
SecretKey secret = new SecretKeySpec(secretByte, "HMACSHA256");
mac.init(secret);
byte[] doFinal = mac.doFinal(dataBytes);
char[] hexB = Hex.encode(doFinal);
return new String(hexB);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static String digest(String key, Map map) {
StringBuilder s = new StringBuilder();
for(Object values : map.values()) {
if(values instanceof String[]) {
for(String value : (String[])values) {
s.append(value);
}
} else if(values instanceof List) {
for(String value : (List)values) {
s.append(value);
}
} else {
s.append(values);
}
}
return digest(key, s.toString());
}
}