/// <inheritdoc/>
public IObjectSigner Build(Action <ObjectSignerBuilder> configurator = null)
{
var builder = new ObjectSignerBuilder();
configurator?.Invoke(builder);
return(new ObjectSigner(builder));
}
/// <summary>
/// Setup a delegate to convert an object to a string
/// </summary>
/// <param name="source"><see cref="ObjectSignerBuilder"/> instance that the operation is applied to</param>
/// <param name="objectToStringSerialiser">Delegate to serialise an object into a string</param>
/// <returns></returns>
public static ObjectSignerBuilder WithStringBasedSerialiser(this ObjectSignerBuilder source, Func <object, string> objectToStringSerialiser)
{
source.WithBinarySerialiser(input => Encoding.UTF8.GetBytes(objectToStringSerialiser(input)));
return(source);
}
/// <summary>
/// Use the HMACSHA512 ComputeHash method for signature generation
/// </summary>
/// <param name="source"><see cref="ObjectSignerBuilder"/> instance that the operation is applied to</param>
/// <param name="secret">Secret key for the HMAC instance to use</param>
/// <returns><see cref="ObjectSignerBuilder"/> instance to fluently build with</returns>
public static ObjectSignerBuilder WithHmac512SignatureProvider(this ObjectSignerBuilder source, byte[] secret)
{
return(AddDisposableSignatureProvider(source, new HMACSHA512(secret)));
}
private static ObjectSignerBuilder AddDisposableSignatureProvider(ObjectSignerBuilder source, HashAlgorithm algorithm)
{
return(source
.WithSignatureProvider(algorithm.ComputeHash)
.OnDispose(() => algorithm.Dispose()));
}
public ObjectSigner(ObjectSignerBuilder builder)
{
_builder = builder;
}
