42 lines
1.2 KiB
C#
42 lines
1.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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namespace CCS.Utility.Security
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{
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public static class SHA1Helper
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{
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/// <summary>
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/// 获得一个字符串的加密密文
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/// 此密文为单向加密，即不可逆(解密)密文
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/// </summary>
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/// <param name="plainText">待加密明文</param>
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/// <returns>已加密密文</returns>
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public static string SHA1(string plainText)
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{
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if (string.IsNullOrEmpty(plainText)) return string.Empty;
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System.Security.Cryptography.SHA1 sha1 = System.Security.Cryptography.SHA1.Create();
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byte[] buffer = sha1.ComputeHash(Encoding.Default.GetBytes(plainText));
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StringBuilder sb = new StringBuilder();
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foreach (byte var in buffer)
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{
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sb.Append(var.ToString("x2"));
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}
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return sb.ToString().ToLower();
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}
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public static string SHA1Lower(string plainText)
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{
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return SHA1(plainText).ToLower();
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}
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public static string SHA1Upper(string plainText)
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{
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return SHA1(plainText).ToUpper();
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}
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}
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}
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