Sign.java
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package com.qcloud.Common;
import java.io.UnsupportedEncodingException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.TreeMap;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
//import sun.misc.BASE64Encoder;
//import org.apache.commons.codec.binary.Base64;
import com.qcloud.Utilities.Base64;
import com.sun.corba.se.impl.protocol.giopmsgheaders.RequestMessage;
public class Sign {
// 编码方式
private static final String CONTENT_CHARSET = "UTF-8";
// HMAC算法
private static final String HMAC_ALGORITHM = "HmacSHA1";
/**
* @brief 签名
* @author gavinyao@tencent.com
* @date 2014-08-13 21:07:27
*
* @param signStr 被加密串
* @param secret 加密密钥
*
* @return
*/
public static String sign(String signStr, String secret)
throws NoSuchAlgorithmException, UnsupportedEncodingException, InvalidKeyException
{
String sig = null;
Mac mac = Mac.getInstance(HMAC_ALGORITHM);
SecretKeySpec secretKey = new SecretKeySpec(secret.getBytes(CONTENT_CHARSET), mac.getAlgorithm());
mac.init(secretKey);
byte[] hash = mac.doFinal(signStr.getBytes(CONTENT_CHARSET));
// base64
//sig = new String(new BASE64Encoder().encode(hash).getBytes());
//sig = new String(Base64.encodeBase64(hash));
sig = new String(Base64.encode(hash));
return sig;
}
public static String makeSignPlainText(TreeMap<String, Object> requestParams, String requestMethod, String requestHost, String requestPath) {
String retStr = "";
retStr += requestMethod;
retStr += requestHost;
retStr += requestPath;
retStr += buildParamStr1(requestParams, requestMethod);
return retStr;
}
protected static String buildParamStr1(TreeMap<String, Object> requestParams, String requestMethod) {
return buildParamStr(requestParams, requestMethod);
}
protected static String buildParamStr(TreeMap<String, Object> requestParams, String requestMethod) {
String retStr = "";
for(String key: requestParams.keySet()) {
//排除上传文件的参数
if(requestMethod == "POST" && requestParams.get(key).toString().substring(0, 1).equals("@")){
continue;
}
if (retStr.length()==0) {
retStr += '?';
} else {
retStr += '&';
}
retStr += key.replace("_", ".") + '=' + requestParams.get(key).toString();
}
return retStr;
}
}