@@ -1,45 +0,0 @@ | |||
using System; | |||
using System.Collections.Generic; | |||
using System.Runtime.InteropServices; | |||
using System.Text; | |||
namespace Shadowsocks.Encrypt | |||
{ | |||
public class OpenSSL | |||
{ | |||
const string DLLNAME = "libeay32"; | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static void OpenSSL_add_all_ciphers(); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static IntPtr EVP_md5(); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static int EVP_BytesToKey(IntPtr type, IntPtr md, IntPtr salt, byte[] data, int datal, int count, byte[] key, byte[] iv); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static int RAND_bytes(byte[] buf, int num); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static IntPtr EVP_get_cipherbyname(byte[] name); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static IntPtr EVP_CIPHER_CTX_new(); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static int EVP_CipherInit_ex(IntPtr ctx, IntPtr type, IntPtr impl, byte[] key, byte[] iv, int enc); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static int EVP_CIPHER_CTX_cleanup(IntPtr a); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static int EVP_CIPHER_CTX_free(IntPtr a); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static int EVP_CipherUpdate(IntPtr ctx, byte[] outb, out int outl, byte[] inb, int inl); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static IntPtr MD5(byte[] d, long n, byte[] md); | |||
} | |||
} |
@@ -1,170 +0,0 @@ | |||
using System; | |||
using System.Collections.Generic; | |||
using System.Runtime.InteropServices; | |||
using System.Text; | |||
namespace Shadowsocks.Encrypt | |||
{ | |||
public class OpenSSLEncryptor | |||
: EncryptorBase, IDisposable | |||
{ | |||
static Dictionary<string, int[]> ciphers = new Dictionary<string, int[]> { | |||
{"aes-128-cfb", new int[]{16, 16}}, | |||
{"aes-192-cfb", new int[]{24, 16}}, | |||
{"aes-256-cfb", new int[]{32, 16}}, | |||
{"bf-cfb", new int[]{16, 8}}, | |||
{"rc4", new int[]{16, 0}}, | |||
{"rc4-md5", new int[]{16, 16}}, | |||
}; | |||
static OpenSSLEncryptor() | |||
{ | |||
OpenSSL.OpenSSL_add_all_ciphers(); | |||
} | |||
public OpenSSLEncryptor(string method, string password) | |||
: base(method, password) | |||
{ | |||
InitKey(method, password); | |||
} | |||
static byte[] tempbuf = new byte[32768]; | |||
public override void Encrypt(byte[] buf, int length, byte[] outbuf, out int outlength) | |||
{ | |||
if (_encryptCtx == IntPtr.Zero) | |||
{ | |||
OpenSSL.RAND_bytes(outbuf, ivLen); | |||
InitCipher(ref _encryptCtx, outbuf, true); | |||
outlength = length + ivLen; | |||
OpenSSL.EVP_CipherUpdate(_encryptCtx, tempbuf, out outlength, buf, length); | |||
outlength = length + ivLen; | |||
Buffer.BlockCopy(tempbuf, 0, outbuf, ivLen, length); | |||
} | |||
else | |||
{ | |||
outlength = length; | |||
OpenSSL.EVP_CipherUpdate(_encryptCtx, outbuf, out outlength, buf, length); | |||
} | |||
} | |||
public override void Decrypt(byte[] buf, int length, byte[] outbuf, out int outlength) | |||
{ | |||
if (_decryptCtx == IntPtr.Zero) | |||
{ | |||
InitCipher(ref _decryptCtx, buf, false); | |||
outlength = length - ivLen; | |||
Buffer.BlockCopy(buf, ivLen, tempbuf, 0, length - ivLen); | |||
OpenSSL.EVP_CipherUpdate(_decryptCtx, outbuf, out outlength, tempbuf, length - ivLen); | |||
} | |||
else | |||
{ | |||
outlength = length; | |||
OpenSSL.EVP_CipherUpdate(_decryptCtx, outbuf, out outlength, buf, length); | |||
} | |||
} | |||
private static readonly Dictionary<string, byte[]> CachedKeys = new Dictionary<string, byte[]>(); | |||
private byte[] _key; | |||
private IntPtr _encryptCtx; | |||
private IntPtr _decryptCtx; | |||
private IntPtr _cipher; | |||
private string _method; | |||
private int keyLen; | |||
private int ivLen; | |||
private void InitKey(string method, string password) | |||
{ | |||
method = method.ToLower(); | |||
_method = method; | |||
string k = method + ":" + password; | |||
if (method == "rc4-md5") | |||
{ | |||
method = "rc4"; | |||
} | |||
_cipher = OpenSSL.EVP_get_cipherbyname(System.Text.Encoding.UTF8.GetBytes(method)); | |||
if (_cipher == null) | |||
{ | |||
throw new Exception("method not found"); | |||
} | |||
keyLen = ciphers[_method][0]; | |||
ivLen = ciphers[_method][1]; | |||
if (CachedKeys.ContainsKey(k)) | |||
{ | |||
_key = CachedKeys[k]; | |||
} | |||
else | |||
{ | |||
byte[] passbuf = Encoding.UTF8.GetBytes(password); | |||
_key = new byte[32]; | |||
byte[] iv = new byte[16]; | |||
OpenSSL.EVP_BytesToKey(_cipher, OpenSSL.EVP_md5(), IntPtr.Zero, passbuf, passbuf.Length, 1, _key, iv); | |||
CachedKeys[k] = _key; | |||
} | |||
} | |||
private void InitCipher(ref IntPtr ctx, byte[] iv, bool isCipher) | |||
{ | |||
ctx = OpenSSL.EVP_CIPHER_CTX_new(); | |||
int enc = isCipher ? 1 : 0; | |||
byte[] realkey; | |||
IntPtr r = IntPtr.Zero; | |||
if (_method == "rc4-md5") | |||
{ | |||
byte[] temp = new byte[keyLen + ivLen]; | |||
realkey = new byte[keyLen]; | |||
Array.Copy(_key, 0, temp, 0, keyLen); | |||
Array.Copy(iv, 0, temp, keyLen, ivLen); | |||
r = OpenSSL.MD5(temp, keyLen + ivLen, null); | |||
Marshal.Copy(r, realkey, 0, keyLen); | |||
} | |||
else | |||
{ | |||
realkey = _key; | |||
} | |||
OpenSSL.EVP_CipherInit_ex(ctx, _cipher, IntPtr.Zero, realkey, iv, enc); | |||
} | |||
#region IDisposable | |||
private bool _disposed; | |||
public override void Dispose() | |||
{ | |||
Dispose(true); | |||
GC.SuppressFinalize(this); | |||
} | |||
~OpenSSLEncryptor() | |||
{ | |||
Dispose(false); | |||
} | |||
protected virtual void Dispose(bool disposing) | |||
{ | |||
if (!_disposed) | |||
{ | |||
if (disposing) | |||
{ | |||
} | |||
if (_encryptCtx.ToInt64() != 0) | |||
{ | |||
OpenSSL.EVP_CIPHER_CTX_cleanup(_encryptCtx); | |||
OpenSSL.EVP_CIPHER_CTX_free(_encryptCtx); | |||
_encryptCtx = IntPtr.Zero; | |||
} | |||
if (_decryptCtx.ToInt64() != 0) | |||
{ | |||
OpenSSL.EVP_CIPHER_CTX_cleanup(_decryptCtx); | |||
OpenSSL.EVP_CIPHER_CTX_free(_decryptCtx); | |||
_decryptCtx = IntPtr.Zero; | |||
} | |||
_disposed = true; | |||
} | |||
} | |||
#endregion | |||
} | |||
} |
@@ -1,5 +1,8 @@ | |||
using System; | |||
using Shadowsocks.Controller; | |||
using Shadowsocks.Properties; | |||
using System; | |||
using System.Collections.Generic; | |||
using System.IO; | |||
using System.Runtime.InteropServices; | |||
using System.Text; | |||
@@ -13,6 +16,24 @@ namespace Shadowsocks.Encrypt | |||
public const int AES_ENCRYPT = 1; | |||
public const int AES_DECRYPT = 0; | |||
static PolarSSL() | |||
{ | |||
string tempPath = Path.GetTempPath(); | |||
string dllPath = tempPath + "/polarssl.dll"; | |||
try | |||
{ | |||
FileManager.UncompressFile(dllPath, Resources.polarssl_dll); | |||
} | |||
catch (IOException e) | |||
{ | |||
Console.WriteLine(e.ToString()); | |||
} | |||
LoadLibrary(dllPath); | |||
} | |||
[DllImport("Kernel32.dll")] | |||
private static extern IntPtr LoadLibrary(string path); | |||
[DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | |||
public extern static void aes_init(IntPtr ctx); | |||
@@ -4,9 +4,6 @@ using Shadowsocks.View; | |||
using System; | |||
using System.Collections.Generic; | |||
using System.Diagnostics; | |||
using System.IO; | |||
using System.Reflection; | |||
using System.Runtime.InteropServices; | |||
using System.Threading; | |||
using System.Windows.Forms; | |||
@@ -14,8 +11,6 @@ namespace Shadowsocks | |||
{ | |||
static class Program | |||
{ | |||
[DllImport("Kernel32.dll")] | |||
private static extern IntPtr LoadLibrary(string path); | |||
/// <summary> | |||
/// 应用程序的主入口点。 | |||
@@ -35,17 +30,6 @@ namespace Shadowsocks | |||
MessageBox.Show("Shadowsocks is already running.\n\nFind Shadowsocks icon in your notify tray."); | |||
return; | |||
} | |||
string tempPath = Path.GetTempPath(); | |||
string dllPath = tempPath + "/polarssl.dll"; | |||
try | |||
{ | |||
FileManager.UncompressFile(dllPath, Resources.polarssl_dll); | |||
} | |||
catch (IOException e) | |||
{ | |||
Console.WriteLine(e.ToString()); | |||
} | |||
LoadLibrary(dllPath); | |||
#if !DEBUG | |||
Logging.OpenLogFile(); | |||
@@ -77,8 +77,6 @@ | |||
<Compile Include="Controller\UpdateChecker.cs" /> | |||
<Compile Include="Encrypt\EncryptorBase.cs" /> | |||
<Compile Include="Encrypt\EncryptorFactory.cs" /> | |||
<Compile Include="Encrypt\OpenSSL.cs" /> | |||
<Compile Include="Encrypt\OpenSSLEncryptor.cs" /> | |||
<Compile Include="Encrypt\PolarSSL.cs" /> | |||
<Compile Include="Encrypt\PolarSSLEncryptor.cs" /> | |||
<Compile Include="Encrypt\TableEncryptor.cs" /> | |||