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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
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113
shadowsocks-windows/shadowsocks-csharp/Encryption/Sodium.cs Executable 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 Sodium
{
private static Logger logger = LogManager.GetCurrentClassLogger();
private const string DLLNAME = "libsscrypto.dll";
private static bool _initialized = false;
private static readonly object _initLock = new object();
public static bool AES256GCMAvailable { get; private set; } = false;
static Sodium()
{
string dllPath = Utils.GetTempPath(DLLNAME);
try
{
FileManager.UncompressFile(dllPath, Resources.libsscrypto_dll);
}
catch (IOException)
{
}
catch (System.Exception e)
{
logger.LogUsefulException(e);
}
LoadLibrary(dllPath);
lock (_initLock)
{
if (!_initialized)
{
if (sodium_init() == -1)
{
throw new System.Exception("Failed to initialize sodium");
}
else /* 1 means already initialized; 0 means success */
{
_initialized = true;
}
AES256GCMAvailable = crypto_aead_aes256gcm_is_available() == 1;
logger.Debug($"sodium: AES256GCMAvailable is {AES256GCMAvailable}");
}
}
}
[DllImport("Kernel32.dll")]
private static extern IntPtr LoadLibrary(string path);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
private static extern int sodium_init();
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
private static extern int crypto_aead_aes256gcm_is_available();
#region AEAD
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int sodium_increment(byte[] n, int nlen);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_aead_chacha20poly1305_ietf_encrypt(byte[] c, ref ulong clen_p, byte[] m,
ulong mlen, byte[] ad, ulong adlen, byte[] nsec, byte[] npub, byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_aead_chacha20poly1305_ietf_decrypt(byte[] m, ref ulong mlen_p,
byte[] nsec, byte[] c, ulong clen, byte[] ad, ulong adlen, byte[] npub, byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_aead_xchacha20poly1305_ietf_encrypt(byte[] c, ref ulong clen_p, byte[] m, ulong mlen,
byte[] ad, ulong adlen, byte[] nsec, byte[] npub, byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_aead_xchacha20poly1305_ietf_decrypt(byte[] m, ref ulong mlen_p, byte[] nsec, byte[] c,
ulong clen, byte[] ad, ulong adlen, byte[] npub, byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_aead_aes256gcm_encrypt(byte[] c, ref ulong clen_p, byte[] m, ulong mlen,
byte[] ad, ulong adlen, byte[] nsec, byte[] npub, byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_aead_aes256gcm_decrypt(byte[] m, ref ulong mlen_p, byte[] nsec, byte[] c,
ulong clen, byte[] ad, ulong adlen, byte[] npub, byte[] k);
#endregion
#region Stream
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_stream_salsa20_xor_ic(byte[] c, byte[] m, ulong mlen, byte[] n, ulong ic,
byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_stream_chacha20_xor_ic(byte[] c, byte[] m, ulong mlen, byte[] n, ulong ic,
byte[] k);
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
public static extern int crypto_stream_chacha20_ietf_xor_ic(byte[] c, byte[] m, ulong mlen, byte[] n, uint ic,
byte[] k);
#endregion
}
}