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using System.Security.Cryptography;
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using System.Text;
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namespace DS.Module.Core.Helpers;
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/// <summary>
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///
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/// </summary>
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public class MD5Helper
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{
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/// <summary>
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/// MD5加密字符串（32位大写）
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/// </summary>
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/// <param name="source">源字符串</param>
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/// <returns>加密后的字符串</returns>
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public static string MD5Encrypt(string source)
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{
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MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
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byte[] bytes = Encoding.UTF8.GetBytes(source);
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string result = BitConverter.ToString(md5.ComputeHash(bytes));
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return result.Replace("-", "");
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}
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/// <summary>
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/// Md5加密 32位小写
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/// </summary>
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/// <param name="input"></param>
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/// <returns></returns>
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public static string Md5EncryptLowerCase(string input)
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{
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MD5 md5 = MD5.Create();
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byte[] bytes = Encoding.Default.GetBytes(input);
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byte[] bytesMd5 = md5.ComputeHash(bytes);
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < bytesMd5.Length; i++)
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{
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sb.Append(bytesMd5[i].ToString("x2")); //32位小写
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}
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return sb.ToString();
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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="text">加密文本</param>
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/// <param name="uppercase">是否输出大写加密，默认 false</param>
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/// <param name="is16">是否输出 16 位</param>
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/// <returns></returns>
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public static string Encrypt(string text, bool uppercase = false, bool is16 = false)
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{
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byte[] bytes = Encoding.UTF8.GetBytes(text);
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var data = MD5.HashData(bytes);
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var stringBuilder = new StringBuilder();
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for (var i = 0; i < data.Length; i++)
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{
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stringBuilder.Append(data[i].ToString("x2"));
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}
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var md5String = stringBuilder.ToString();
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var hash = !is16 ? md5String : md5String.Substring(8, 16);
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return !uppercase ? hash : hash.ToUpper();
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}
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} |