@@ -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.Collections.Generic; | ||||
using System.IO; | |||||
using System.Runtime.InteropServices; | using System.Runtime.InteropServices; | ||||
using System.Text; | using System.Text; | ||||
@@ -13,6 +16,24 @@ namespace Shadowsocks.Encrypt | |||||
public const int AES_ENCRYPT = 1; | public const int AES_ENCRYPT = 1; | ||||
public const int AES_DECRYPT = 0; | 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)] | [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)] | ||||
public extern static void aes_init(IntPtr ctx); | public extern static void aes_init(IntPtr ctx); | ||||
@@ -4,9 +4,6 @@ using Shadowsocks.View; | |||||
using System; | using System; | ||||
using System.Collections.Generic; | using System.Collections.Generic; | ||||
using System.Diagnostics; | using System.Diagnostics; | ||||
using System.IO; | |||||
using System.Reflection; | |||||
using System.Runtime.InteropServices; | |||||
using System.Threading; | using System.Threading; | ||||
using System.Windows.Forms; | using System.Windows.Forms; | ||||
@@ -14,8 +11,6 @@ namespace Shadowsocks | |||||
{ | { | ||||
static class Program | static class Program | ||||
{ | { | ||||
[DllImport("Kernel32.dll")] | |||||
private static extern IntPtr LoadLibrary(string path); | |||||
/// <summary> | /// <summary> | ||||
/// 应用程序的主入口点。 | /// 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."); | MessageBox.Show("Shadowsocks is already running.\n\nFind Shadowsocks icon in your notify tray."); | ||||
return; | 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 | #if !DEBUG | ||||
Logging.OpenLogFile(); | Logging.OpenLogFile(); | ||||
@@ -77,8 +77,6 @@ | |||||
<Compile Include="Controller\UpdateChecker.cs" /> | <Compile Include="Controller\UpdateChecker.cs" /> | ||||
<Compile Include="Encrypt\EncryptorBase.cs" /> | <Compile Include="Encrypt\EncryptorBase.cs" /> | ||||
<Compile Include="Encrypt\EncryptorFactory.cs" /> | <Compile Include="Encrypt\EncryptorFactory.cs" /> | ||||
<Compile Include="Encrypt\OpenSSL.cs" /> | |||||
<Compile Include="Encrypt\OpenSSLEncryptor.cs" /> | |||||
<Compile Include="Encrypt\PolarSSL.cs" /> | <Compile Include="Encrypt\PolarSSL.cs" /> | ||||
<Compile Include="Encrypt\PolarSSLEncryptor.cs" /> | <Compile Include="Encrypt\PolarSSLEncryptor.cs" /> | ||||
<Compile Include="Encrypt\TableEncryptor.cs" /> | <Compile Include="Encrypt\TableEncryptor.cs" /> | ||||