public async Task <Auth> CreateAuthRequestAsync(AuthNonce nonce, uint keyIndex = 0)
{
if (IsLocked)
{
Log.Warning("Wallet locked");
return(null);
}
using var securePublicKey = Wallet.GetServicePublicKey(keyIndex);
using var publicKey = securePublicKey.ToUnsecuredBytes();
var auth = new Auth
{
TimeStamp = DateTime.UtcNow,
Nonce = nonce.Nonce,
ClientNonce = Guid.NewGuid().ToString(),
PublicKeyHex = publicKey.Data.ToHexString(),
Version = ApiVersion
};
var signature = await Wallet
.SignByServiceKeyAsync(auth.SignedData, keyIndex)
.ConfigureAwait(false);
auth.Signature = Convert.ToBase64String(signature);
return(auth);
}
/// <summary>
/// Stores a given nonce and timestamp.
/// </summary>
/// <param name="context">The context, or namespace, within which the
/// <paramref name="nonce"/> must be unique.
/// The context SHOULD be treated as case-sensitive.
/// The value will never be <c>null</c> but may be the empty string.</param>
/// <param name="nonce">A series of random characters.</param>
/// <param name="timestampUtc">The UTC timestamp that together with the nonce string make it unique
/// within the given <paramref name="context"/>.
/// The timestamp may also be used by the data store to clear out old nonces.</param>
/// <returns>
/// True if the context+nonce+timestamp (combination) was not previously in the database.
/// False if the nonce was stored previously with the same timestamp and context.
/// </returns>
/// <remarks>
/// The nonce must be stored for no less than the maximum time window a message may
/// be processed within before being discarded as an expired message.
/// This maximum message age can be looked up via the
/// <see cref="DotNetOpenAuth.Configuration.MessagingElement.MaximumMessageLifetime"/>
/// property, accessible via the <see cref="DotNetOpenAuth.Configuration.DotNetOpenAuthSection.Configuration"/>
/// property.
/// </remarks>
public bool StoreNonce(string context, string nonce, DateTime timestampUtc)
{
AuthNonce authNonce = new AuthNonce {
Context = context, Code = nonce, Timestamp = timestampUtc
};
Repository.Save(authNonce);
Repository.Flush();
return(true);
}
private void AuthNonceHandler(MemoryStream stream)
{
Nonce = Schemes.AuthNonce.DeserializeWithLengthPrefix(stream);
AuthNonce?.Invoke(this, EventArgs.Empty);
}
