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Update On Tue Dec 31 19:31:58 CET 2024

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2024-12-31 19:31:59 +01:00
parent 24d7dba717
commit a3e7f86215
576 changed files with 22919 additions and 15080 deletions
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109
shadowsocks-windows/shadowsocks-csharp/Encryption/MbedTLS.cs Normal file
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using System;
using System.IO;
using System.Runtime.InteropServices;
using NLog;
using Shadowsocks.Controller;
using Shadowsocks.Properties;
using Shadowsocks.Util;
namespace Shadowsocks.Encryption
{
public static class MbedTLS
{
private static Logger logger = LogManager.GetCurrentClassLogger();
private const string DLLNAME = "libsscrypto.dll";
public const int MBEDTLS_ENCRYPT = 1;
public const int MBEDTLS_DECRYPT = 0;
static MbedTLS()
{
string dllPath = Utils.GetTempPath(DLLNAME);
try
{
FileManager.UncompressFile(dllPath, Resources.libsscrypto_dll);
}
catch (IOException)
{
}
catch (System.Exception e)
{
logger.LogUsefulException(e);
}
LoadLibrary(dllPath);
}
public static byte[] MD5(byte[] input)
{
byte[] output = new byte[16];
if (md5_ret(input, (uint) input.Length, output) != 0)
throw new System.Exception("mbedtls: MD5 failure");
return output;
}
[DllImport("Kernel32.dll")]
private static extern IntPtr LoadLibrary(string path);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int md5_ret(byte[] input, uint ilen, byte[] output);
/// <summary>
/// Get cipher ctx size for unmanaged memory allocation
/// </summary>
/// <returns></returns>
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_get_size_ex();
#region Cipher layer wrappers
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr cipher_info_from_string(string cipher_name);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern void cipher_init(IntPtr ctx);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_setup(IntPtr ctx, IntPtr cipher_info);
// XXX: Check operation before using it
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_setkey(IntPtr ctx, byte[] key, int key_bitlen, int operation);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_set_iv(IntPtr ctx, byte[] iv, int iv_len);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_reset(IntPtr ctx);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_update(IntPtr ctx, byte[] input, int ilen, byte[] output, ref int olen);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern void cipher_free(IntPtr ctx);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_auth_encrypt(IntPtr ctx,
byte[] iv, uint iv_len,
IntPtr ad, uint ad_len,
byte[] input, uint ilen,
byte[] output, ref uint olen,
byte[] tag, uint tag_len);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int cipher_auth_decrypt(IntPtr ctx,
byte[] iv, uint iv_len,
IntPtr ad, uint ad_len,
byte[] input, uint ilen,
byte[] output, ref uint olen,
byte[] tag, uint tag_len);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int hkdf(byte[] salt,
int salt_len, byte[] ikm, int ikm_len,
byte[] info, int info_len, byte[] okm,
int okm_len);
#endregion
}
}