47 lines
1.2 KiB
C#
47 lines
1.2 KiB
C#
using System;
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using System.Security.Cryptography;
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using System.Text;
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namespace Infrastructure.Helpers
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{
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public class Md5
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{
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/// <summary>
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/// 计算字节流的MD5值
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/// </summary>
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public static string CalculateStreamMd5(Stream stream)
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{
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if (stream == null)
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throw new ArgumentNullException(nameof(stream));
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if (!stream.CanRead)
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throw new InvalidOperationException("流不可读");
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using var md5 = MD5.Create();
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var hashBytes = md5.ComputeHash(stream);
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return BitConverter.ToString(hashBytes).Replace("-", "").ToLower();
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}
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public static string Encrypt(string str)
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{
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string pwd = String.Empty;
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MD5 md5 = MD5.Create();
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// 编码UTF8/Unicode
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byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
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// 转换成字符串
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for (int i = 0; i < s.Length; i++)
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{
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//格式后的字符是小写的字母
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//如果使用大写（X）则格式后的字符是大写字符
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pwd = pwd + s[i].ToString("X");
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}
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return pwd;
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}
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}
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}
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