169 lines
3.7 KiB
C#
169 lines
3.7 KiB
C#
using System;
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using System.Text;
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using System.IO;
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using System.Security.Cryptography;
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namespace YooAsset.Utility
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{
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public static class HashUtility
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{
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private static string ToString(byte[] hashBytes)
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{
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string result = BitConverter.ToString(hashBytes);
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result = result.Replace("-", "");
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return result.ToLower();
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}
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#region SHA1
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/// <summary>
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/// 获取字符串的Hash值
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/// </summary>
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public static string StringSHA1(string str)
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{
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byte[] buffer = Encoding.UTF8.GetBytes(str);
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return BytesSHA1(buffer);
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}
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/// <summary>
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/// 获取文件的Hash值
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/// </summary>
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public static string FileSHA1(string filePath)
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{
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try
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{
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using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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return StreamSHA1(fs);
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}
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}
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catch (Exception e)
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{
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Logger.Exception(e);
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return string.Empty;
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}
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}
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/// <summary>
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/// 获取数据流的Hash值
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/// </summary>
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public static string StreamSHA1(Stream stream)
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{
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// 说明：创建的是SHA1类的实例，生成的是160位的散列码
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HashAlgorithm hash = HashAlgorithm.Create();
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byte[] hashBytes = hash.ComputeHash(stream);
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return ToString(hashBytes);
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}
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/// <summary>
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/// 获取字节数组的Hash值
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/// </summary>
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public static string BytesSHA1(byte[] buffer)
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{
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// 说明：创建的是SHA1类的实例，生成的是160位的散列码
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HashAlgorithm hash = HashAlgorithm.Create();
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byte[] hashBytes = hash.ComputeHash(buffer);
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return ToString(hashBytes);
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}
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#endregion
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#region MD5
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/// <summary>
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/// 获取字符串的MD5
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/// </summary>
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public static string StringMD5(string str)
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{
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byte[] buffer = Encoding.UTF8.GetBytes(str);
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return BytesMD5(buffer);
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}
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/// <summary>
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/// 获取文件的MD5
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/// </summary>
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public static string FileMD5(string filePath)
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{
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try
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{
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using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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return StreamMD5(fs);
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}
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}
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catch (Exception e)
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{
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Logger.Exception(e);
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return string.Empty;
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}
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}
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/// <summary>
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/// 获取数据流的MD5
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/// </summary>
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public static string StreamMD5(Stream stream)
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{
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MD5CryptoServiceProvider provider = new MD5CryptoServiceProvider();
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byte[] hashBytes = provider.ComputeHash(stream);
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return ToString(hashBytes);
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}
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/// <summary>
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/// 获取字节数组的MD5
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/// </summary>
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public static string BytesMD5(byte[] buffer)
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{
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MD5CryptoServiceProvider provider = new MD5CryptoServiceProvider();
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byte[] hashBytes = provider.ComputeHash(buffer);
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return ToString(hashBytes);
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}
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#endregion
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#region CRC32
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/// <summary>
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/// 获取字符串的CRC32
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/// </summary>
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public static string StringCRC32(string str)
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{
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byte[] buffer = Encoding.UTF8.GetBytes(str);
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return BytesCRC32(buffer);
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}
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/// <summary>
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/// 获取文件的CRC32
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/// </summary>
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public static string FileCRC32(string filePath)
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{
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try
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{
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using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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return StreamCRC32(fs);
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}
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}
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catch (Exception e)
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{
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Logger.Exception(e);
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return string.Empty;
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}
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}
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/// <summary>
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/// 获取数据流的CRC32
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/// </summary>
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public static string StreamCRC32(Stream stream)
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{
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CRC32Algorithm hash = new CRC32Algorithm();
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byte[] hashBytes = hash.ComputeHash(stream);
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return ToString(hashBytes);
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}
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/// <summary>
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/// 获取字节数组的CRC32
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/// </summary>
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public static string BytesCRC32(byte[] buffer)
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{
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CRC32Algorithm hash = new CRC32Algorithm();
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byte[] hashBytes = hash.ComputeHash(buffer);
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return ToString(hashBytes);
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}
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#endregion
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}
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} |