private static string Decrypt(string p_Value)
{
var target = new CipherEngine();
string decriptedValue = target.Decrypt(p_Value);
return(decriptedValue);
}
internal void DecodeAuthToken()
{
var target = new CipherEngine();
List <string> decriptedValue = target.Decrypt(this.T).Split(',').ToList();
this.SID = decriptedValue.First();
}
/// <summary>
/// Measure cipher performance in MB/s
/// </summary>
/// <param name="cipher">Cipher instance</param>
/// <returns>Speed in MB/s</returns>
public static string SpeedTest(ICipherAlgorithm cipher)
{
const int SAMPLE_SIZE_KB = 4;
const int TEST_CYCLES = 1024;
byte[] plainText = new byte[SAMPLE_SIZE_KB * 1024];
byte[] key = new byte[cipher.KeyLength];
byte[] iv = new byte[cipher.BlockSize];
Random rng = new Random();
rng.NextBytes(plainText);
rng.NextBytes(key);
rng.NextBytes(iv);
CipherEngine engine = new CipherEngine(cipher);
Stream cipherStream = engine.EncryptStream(new MemoryStream(), key, iv);
Stopwatch sw = new Stopwatch();
sw.Start();
for (int c = 0; c < TEST_CYCLES; c++)
{
using (MemoryStream plainTextStream = new MemoryStream(plainText)) {
plainTextStream.WriteTo(cipherStream);
}
}
sw.Stop();
return(String.Format("{0} = {1:0.00} KB/s", cipher.Name, (float)((1000.0 * SAMPLE_SIZE_KB * TEST_CYCLES) / (sw.ElapsedMilliseconds * 1.0))));
}
/// <summary>
/// Used to generate an X509Certificate.
/// </summary>
public X509CertificateGenerator()
{
System.Random r = new System.Random();
CipherEngine = CipherEngine.RSACryptoServiceProvider;
KeySize = 2048;
SignatureBits = 256;
SerialNumber = ((long)r.Next() << 31) ^ r.Next();
Issuer = Guid.NewGuid().ToString("N");
Subject = Issuer;
NotBefore = new DateTime(DateTime.UtcNow.Date.AddDays(-7).Year, 1, 1, 0, 0, 0, DateTimeKind.Utc);
NotAfter = NotBefore.AddYears(10);
}
private string GetAuthorizationToken(GATRequest p_Data, Guid p_Guid)
{
if (!CachingLayer.IPThrottle(p_Data.IPAddress))
{
throw new AccessViolationException("Throtteling was defined");
}
var target = new CipherEngine();
//long p_SIDRandomNumber = new Random().Next(int.MinValue, int.MaxValue);
string p_DataToEncrypt = string.Join(",", p_Guid, p_Data.CallingPage, ConfigurationManager.AppSettings["AppID"], p_Data.IPAddress, /* p_SIDRandomNumber,*/ DateTime.UtcNow.Ticks);
string SIDKey = target.Encrypt(p_DataToEncrypt);
CachingLayer.Insert(SIDKey, p_Guid.ToString());
return(SIDKey);
}
private bool Authorize(HttpActionContext actionContext)
{
try
{
var request = actionContext.Request.Content.ReadAsStreamAsync().Result;
string rawRequest;
using (var stream = new StreamReader(actionContext.Request.Content.ReadAsStreamAsync().Result))
{
stream.BaseStream.Position = 0;
rawRequest = stream.ReadToEnd();
}
dynamic header = JsonConvert.DeserializeObject(rawRequest);
/*string token = request.Params[_securityToken];*/
CipherEngine crypto = new CipherEngine();
var temp = crypto.Decrypt(header.T.Value).Split(',');
string ip = temp [3] ?? SecurityFacadeManager.GetIP(actionContext.Request);
return(SecurityFacade.IsTokenValid(header.TN.Value, ip, header.UA.Value));
}
catch (Exception)
{
return(false);
}
}
public CBCBlockCipher(int keybits, CipherEngine engine)
{
key = new byte[keybits / 8];
this.engine = engine;
}