66 lines
2.0 KiB
C#
66 lines
2.0 KiB
C#
using System;
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using System.IO;
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using System.Runtime.InteropServices;
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using Shadowsocks.Controller;
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using Shadowsocks.Properties;
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using Shadowsocks.Util;
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namespace Shadowsocks.Encryption
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{
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public class MbedTLS
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{
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const string DLLNAME = "libsscrypto";
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static MbedTLS()
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{
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string dllPath = Utils.GetTempPath("libsscrypto.dll");
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try
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{
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FileManager.UncompressFile(dllPath, Resources.libsscrypto_dll);
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}
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catch (IOException)
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{
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}
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catch (Exception e)
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{
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Console.WriteLine(e.ToString());
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}
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LoadLibrary(dllPath);
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}
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[DllImport("Kernel32.dll")]
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private static extern IntPtr LoadLibrary(string path);
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public const int MD5_CTX_SIZE = 88;
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public static byte[] MD5(byte[] input)
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{
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IntPtr ctx = Marshal.AllocHGlobal(MD5_CTX_SIZE);
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byte[] output = new byte[16];
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MbedTLS.md5_init(ctx);
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MbedTLS.md5_starts(ctx);
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MbedTLS.md5_update(ctx, input, (uint)input.Length);
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MbedTLS.md5_finish(ctx, output);
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MbedTLS.md5_free(ctx);
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Marshal.FreeHGlobal(ctx);
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return output;
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}
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[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
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public extern static void md5_init(IntPtr ctx);
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[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
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public extern static void md5_free(IntPtr ctx);
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[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
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public extern static void md5_starts(IntPtr ctx);
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[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
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public extern static void md5_update(IntPtr ctx, byte[] input, uint ilen);
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[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
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public extern static void md5_finish(IntPtr ctx, byte[] output);
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}
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}
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