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//------------------------------------------------------------------------------
// <copyright file="ITlsTokenBindingInfo.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web {
using System;
// Represents token binding information for a request.
// TLS token bindings help mitigate the risk of impersonation by an
// attacker in the event an authenticated client's bearer tokens are
// somehow exfiltrated from the client's machine.
// More info: https://datatracker.ietf.org/doc/draft-popov-token-binding/
public interface ITlsTokenBindingInfo {
// Gets the 'provided' token binding identifier associated with
// the request. This method could return null if the client did
// not supply a 'provided' token binding or if the client did
// not supply a valid proof of possession for the associated
// private key.
//
// The caller should treat this token binding id as an opaque blob
// and should not try to parse it.
byte[] GetProvidedTokenBindingId();
// Gets the 'referred' token binding identifier associated with
// the request. This method could return null if the client did
// not supply a 'referred' token binding or if the client did
// not supply a valid proof of possession for the associated
// private key.
//
// The caller should treat this token binding id as an opaque blob
// and should not try to parse it.
byte[] GetReferredTokenBindingId();
}
}
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