53 lines
1.4 KiB
C#
53 lines
1.4 KiB
C#
using System.Security.Cryptography;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace EncryptTool;
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/*
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* 作者：菻蔃
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* 注意：MD5 加密会被机器容易的破解，请勿用于机密数据
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* 版本时间：2024年1月21日
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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 static class Md5Encrypt
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{
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/// <summary>
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/// 魔改版加密，用于加密密码，无法破解，本人也无法知道原密码
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/// </summary>
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/// <param name="password">需要加密的字符串</param>
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/// <param name="length">加密后返回的长度</param>
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/// <returns></returns>
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public static string EncryptPassword(string? password, int length = 255)
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{
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if (string.IsNullOrEmpty(password)) { return string.Empty; }
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var result = string.Empty;
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var i = 0;
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while (result.Length < length)
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{
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var bytes = MD5.HashData(Encoding.UTF8.GetBytes(password));
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var tempStr = Convert.ToBase64String(bytes);
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tempStr = Regex.Replace(tempStr, "\\W", "").ToUpper();
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if (i % 2 == 0)
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{
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result += Regex.Replace(tempStr, "[0-9]", "");
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}
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else
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{
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result += Regex.Replace(tempStr, "[A-Z]|[a-z]", "");
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}
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password = tempStr;
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i++;
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}
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return result[..length];
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}
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}
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