private static byte[] F(string password, Salt salt, int derivationIterations)
{
HMAC hmacsha512 = New <HMACSHA512>().Initialize(new SymmetricKey(new UTF8Encoding(false).GetBytes(password)));
hmacsha512.TransformBlock(salt.GetBytes(), 0, salt.Length, null, 0);
byte[] iBytes = 1.GetBigEndianBytes();
hmacsha512.TransformBlock(iBytes, 0, iBytes.Length, null, 0);
hmacsha512.TransformFinalBlock(_empty, 0, 0);
byte[] u = hmacsha512.Hash();
byte[] un = u;
for (int c = 2; c <= derivationIterations; ++c)
{
hmacsha512.Initialize();
hmacsha512.TransformBlock(u, 0, u.Length, null, 0);
hmacsha512.TransformFinalBlock(_empty, 0, 0);
u = hmacsha512.Hash();
for (int i = 0; i < u.Length; i++)
{
un[i] ^= u[i];
}
}
return(un);
}
internal static Default.Container Context()
{
string LogMsg = MethodBase.GetCurrentMethod().ReflectedType.Name + "." + MethodBase.GetCurrentMethod().ToString() + " :: ";
try
{
var container = new Default.Container(new Uri(serviceURI));
container.Timeout = serviceTimeout;
container.BuildingRequest += (sender, eventArgs) =>
{
//attach header information required to use ApiKey
var hmac = new HMAC()
{
TimeStamp = DateTime.UtcNow.ToString(),
Uri = eventArgs.RequestUri.ToString(),
Method = eventArgs.Method.ToString(),
AppID = appID,
ApiKey = apiKey
};
hmac.SetNonce();
eventArgs.Headers.Add("HMAC", hmac.BuildHeader());
eventArgs.Headers.Add("Hash", hmac.Hash());
};
return(container);
}
catch (Exception ex)
{
NLogWriter.LogMessage(LogType.Error, LogMsg + "Exception calling Flotation Device Service Application :: " + ex.ToString());
throw;
}
}