com.github.xiaoyuge5201.encryption.Sha1Utils Maven / Gradle / Ivy
package com.github.xiaoyuge5201.encryption;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
/**
* @author xiaoyuge
*/
public class Sha1Utils {
private static Logger log = LoggerFactory.getLogger(Sha1Utils.class);
@Value("${spring.application.name}")
private static String systemName;
/**
* 签名
*
* @param parameters 参数
* @return 签名
*/
public static String signature(SortedMap parameters) {
StringBuffer content = new StringBuffer();
//所有参与传参的参数按照accsii排序（升序）
Set es = parameters.entrySet();
for (Object o : es) {
Map.Entry entry = (Map.Entry) o;
String k = (String) entry.getKey();
Object v = entry.getValue();
if (null != v && !"".equals(v)) {
content.append(k + "=" + v + "&");
}
}
String str = content.toString();
str = str.substring(0, str.length()-1);
log.info(str);
MessageDigest md;
String tmpStr = null;
try {
md = MessageDigest.getInstance("SHA-1");
// 将三个参数字符串拼接成一个字符串进行sha1加密
byte[] digest = md.digest(str.getBytes());
tmpStr = byteToStr(digest);
} catch (NoSuchAlgorithmException e) {
log.error("系统名称:" + systemName + ",信息:" + e.toString(), e);
}
assert tmpStr != null;
return tmpStr.toLowerCase();
}
/**
* SHA1加密
* @param str 字符串
* @return 加密结果
*/
public static String getSha1(String str) {
if (str == null || str.length() == 0) {
return null;
}
char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f' };
try {
MessageDigest mdTemp = MessageDigest.getInstance("SHA1");
mdTemp.update(str.getBytes(StandardCharsets.UTF_8));
byte[] md = mdTemp.digest();
int j = md.length;
char[] buf = new char[j * 2];
int k = 0;
for (byte byte0 : md) {
buf[k++] = hexDigits[byte0 >>> 4 & 0xf];
buf[k++] = hexDigits[byte0 & 0xf];
}
return new String(buf);
} catch (Exception e) {
return null;
}
}
/**
* 将字节数组转换为十六进制字符串
*
* @param byteArray 字节数组
* @return 六进制字符串
*/
private static String byteToStr(byte[] byteArray) {
StringBuilder strDigest = new StringBuilder();
for (byte b : byteArray) {
strDigest.append(byteToHexStr(b));
}
return strDigest.toString();
}
/**
* 将字节转换为十六进制字符串
*
* @param mByte 字节
* @return 十六进制字符串
*/
private static String byteToHexStr(byte mByte) {
char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
char[] tempArr = new char[2];
tempArr[0] = Digit[(mByte >>> 4) & 0X0F];
tempArr[1] = Digit[mByte & 0X0F];
return new String(tempArr);
}
public static void main(String[] args){
// log.info(getSha1("csstsari107"));
// log.info(getSha1("csstsari"));
// log.info(getSha1("csstsari"));
// log.info(getSha1("wechart001oFk6wtzDMBCMb3BvWEX38pnaaHA4easemob2017"));
}
}