/// <summary>
/// Initialises a new instance of the <see cref="MacStream" /> class.
/// </summary>
/// <param name="binding">Stream to write to or read from.</param>
/// <param name="writing">If set to <c>true</c>, writing; otherwise, reading.</param>
/// <param name="function">MAC function to instantiate.</param>
/// <param name="key">Cryptographic key to use in the MAC operation.</param>
/// <param name="salt">Cryptographic salt to use in the MAC operation, if any.</param>
/// <param name="nonce"></param>
/// <param name="closeOnDispose">If set to <c>true</c>, bound stream will be closed on dispose/close.</param>
/// <param name="config"></param>
public MacStream(Stream binding, bool writing, MacFunction function, byte[] key, byte[] salt = null,
byte[] config = null, byte[] nonce = null, bool closeOnDispose = true)
{
Contract.Requires <ArgumentNullException>(binding != null);
Contract.Requires <ArgumentNullException>(key != null);
_streamBinding = binding;
Writing = writing;
_closeOnDispose = closeOnDispose;
_mac = AuthenticatorFactory.CreateMacPrimitive(function, key, salt, config, nonce);
_output = new byte[_mac.OutputSize];
_buffer = new byte[BufferSize];
}
/// <summary>
/// Initializes a new instance of the <see cref="HashStream" /> class.
/// </summary>
/// <param name="binding">Stream to write to or read from.</param>
/// <param name="writing">If set to <c>true</c>, writing; otherwise, reading.</param>
/// <param name="function">Hash/digest function to instantiate.</param>
/// <param name="output">Byte array where the finished hash will be output to.</param>
/// <param name="closeOnDispose">If set to <c>true</c>, bound stream will be closed on dispose/close.</param>
public HashStream(Stream binding, bool writing, HashFunction function, out byte[] output,
bool closeOnDispose = true)
{
Contract.Requires <ArgumentNullException>(binding != null);
_streamBinding = binding;
Writing = writing;
_closeOnDispose = closeOnDispose;
_digest = AuthenticatorFactory.CreateHashPrimitive(function);
_buffer = new byte[BufferSize];
_output = new byte[_digest.OutputSize];
output = _output;
}
public HashStream(Stream binding, bool writing, IAuthenticationConfiguration config,
bool closeOnDispose = true)
{
Contract.Requires(binding != null);
_streamBinding = binding;
Writing = writing;
_closeOnDispose = closeOnDispose;
if (config.FunctionType != AuthenticationFunctionType.Mac)
{
throw new ConfigurationInvalidException("Configuration specifies function type other than MAC.");
}
_digest = AuthenticatorFactory.CreateHashPrimitive(config.FunctionName.ToEnum <HashFunction>());
_buffer = new byte[BufferSize];
_output = new byte[_digest.OutputSize];
}
public MacStream(Stream binding, bool writing, IAuthenticationConfiguration config, byte[] key,
bool closeOnDispose = true)
{
Contract.Requires <ArgumentNullException>(binding != null);
Contract.Requires <ArgumentNullException>(key != null);
_streamBinding = binding;
Writing = writing;
_closeOnDispose = closeOnDispose;
if (config.FunctionType != AuthenticationFunctionType.Mac)
{
throw new ConfigurationInvalidException("Configuration specifies function type other than MAC.");
}
_mac = AuthenticatorFactory.CreateMacPrimitive(config.FunctionName.ToEnum <MacFunction>(), key, config.Salt,
config.FunctionConfiguration, config.Nonce);
_output = new byte[_mac.OutputSize];
}
