95 lines
2.5 KiB
C#
95 lines
2.5 KiB
C#
/*******************************************************************************
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* Copyright © 2016 HT.Cloud.Framework 版权所有
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* Author: HT.Cloud
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* Description: WaterCloud快速开发平台
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* Website：
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*********************************************************************************/
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using System;
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using System.Security.Cryptography;
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using System.Text;
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namespace HT.Cloud.Code
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{
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/// <summary>
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/// MD5加密
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/// </summary>
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public class Md5
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{
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/// <summary>
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/// MD5加密
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/// </summary>
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/// <param name="str">加密字符</param>
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/// <param name="code">加密位数16/32</param>
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/// <returns></returns>
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public static string md5(string str, int code)
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{
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string strEncrypt = string.Empty;
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if (code == 16)
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{
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var md5 = System.Security.Cryptography.MD5.Create();
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var data = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
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StringBuilder builder = new StringBuilder();
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// 循环遍历哈希数据的每一个字节并格式化为十六进制字符串
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for (int i = 0; i < data.Length; i++)
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{
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builder.Append(data[i].ToString("X2"));
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}
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strEncrypt = builder.ToString().Substring(8, 16);
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}
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if (code == 32)
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{
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var md5 = System.Security.Cryptography.MD5.Create();
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var data = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
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StringBuilder builder = new StringBuilder();
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// 循环遍历哈希数据的每一个字节并格式化为十六进制字符串
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for (int i = 0; i < data.Length; i++)
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{
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builder.Append(data[i].ToString("X2"));
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}
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strEncrypt = builder.ToString();
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}
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return strEncrypt;
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}
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public static string MD5(string str)
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{
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MD5 md5 = System.Security.Cryptography.MD5.Create();
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byte[] data = System.Text.Encoding.Default.GetBytes(str);
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byte[] md5data = md5.ComputeHash(data);
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md5.Clear();
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str = "";
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for (int i = 0; i < md5data.Length; i++)
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{
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str += md5data[i].ToString("x").PadLeft(2, '0');
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}
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return str;
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}
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public static string MD5Lower16(string str)
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{
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return MD5(str).ToLower().Substring(8, 16);
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}
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public static string MD5Lower32(string str)
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{
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return MD5(str).ToLower(); ;
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}
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/// <summary>
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/// 32位小写
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/// </summary>
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/// <returns></returns>
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public static string SHA1(string s)
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{
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SHA1 sha1 = System.Security.Cryptography.SHA1.Create();
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byte[] hash = sha1.ComputeHash(Encoding.UTF8.GetBytes(s));
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string shaStr = BitConverter.ToString(hash);
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shaStr = shaStr.Replace("-", "");
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shaStr = shaStr.ToLower();
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return s.ToLower();
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}
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}
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} |