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/*
This file is part of GNUnet.
Copyright (C) 2013 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
*/
/**
* @author Christian Grothoff
* @file revocation/revocation.h
* @brief messages for key revocation
*/
#ifndef REVOCATION_H
#define REVOCATION_H
#include "gnunet_util_lib.h"
GNUNET_NETWORK_STRUCT_BEGIN
/**
* Query key revocation status.
*/
struct QueryMessage
{
/**
* Type: #GNUNET_MESSAGE_TYPE_REVOCATION_QUERY
*/
struct GNUNET_MessageHeader header;
/**
* For alignment.
*/
uint32_t reserved GNUNET_PACKED;
/**
* Key to check.
*/
struct GNUNET_CRYPTO_EcdsaPublicKey key;
};
/**
* Key revocation response.
*/
struct QueryResponseMessage
{
/**
* Type: #GNUNET_MESSAGE_TYPE_REVOCATION_QUERY_RESPONSE
*/
struct GNUNET_MessageHeader header;
/**
* #GNUNET_NO if revoked, #GNUNET_YES if valid.
*/
uint32_t is_valid GNUNET_PACKED;
};
/**
* Revoke key. These messages are exchanged between peers (during
* flooding) but also sent by the client to the service. When the
* client sends it to the service, the message is answered by a
* #GNUNET_MESSAGE_TYPE_REVOCATION_REVOKE_RESPONSE (which is just
* in a `struct GNUNET_MessageHeader`.
*/
struct RevokeMessage
{
/**
* Type: #GNUNET_MESSAGE_TYPE_REVOCATION_REVOKE
*/
struct GNUNET_MessageHeader header;
/**
* For alignment.
*/
uint32_t reserved GNUNET_PACKED;
/**
* Number that causes a hash collision with the @e public_key.
*/
uint64_t proof_of_work GNUNET_PACKED;
/**
* Signature confirming revocation.
*/
struct GNUNET_CRYPTO_EcdsaSignature signature;
/**
* Must have purpose #GNUNET_SIGNATURE_PURPOSE_REVOCATION,
* size expands over the public key.
*/
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
/**
* Key to revoke.
*/
struct GNUNET_CRYPTO_EcdsaPublicKey public_key;
};
/**
* Key revocation response.
*/
struct RevocationResponseMessage
{
/**
* Type: #GNUNET_MESSAGE_TYPE_REVOCATION_REVOKE_RESPONSE
*/
struct GNUNET_MessageHeader header;
/**
* #GNUNET_NO if revoked, #GNUNET_YES if valid.
*/
uint32_t is_valid GNUNET_PACKED;
};
GNUNET_NETWORK_STRUCT_END
#endif
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