gnunet_revocation_service.h

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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.
 
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
     SPDX-License-Identifier: AGPL3.0-or-later
 */
 
#ifndef GNUNET_REVOCATION_SERVICE_H_
#define GNUNET_REVOCATION_SERVICE_H_
 
 
#include "gnunet_identity_service.h"
 
#ifdef __cplusplus
extern "C"
{
#if 0                           /* keep Emacsens' auto-indent happy */
}
#endif
#endif
 
#include "gnunet_util_lib.h"
 
#define GNUNET_REVOCATION_VERSION 0x00000001
 
#define GNUNET_REVOCATION_MAX_PROOF_SIZE sizeof(struct GNUNET_REVOCATION_PowP) +\
                                         sizeof(struct GNUNET_IDENTITY_PublicKey) +\
                                         1024 //FIXME max sig_len
 
#define POW_COUNT 32
 
 
GNUNET_NETWORK_STRUCT_BEGIN
 
struct GNUNET_REVOCATION_PowP
{
  struct GNUNET_TIME_AbsoluteNBO timestamp;
 
  struct GNUNET_TIME_RelativeNBO ttl;
 
  uint64_t pow[POW_COUNT] GNUNET_PACKED;
 
};
 
 
struct GNUNET_REVOCATION_SignaturePurposePS
{
  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
  struct GNUNET_TIME_AbsoluteNBO timestamp;
 
};
 
GNUNET_NETWORK_STRUCT_END
 
 
struct GNUNET_REVOCATION_PowCalculationHandle;
 
struct GNUNET_REVOCATION_Query;
 
typedef void (*GNUNET_REVOCATION_Callback) (void *cls,
                                            enum GNUNET_GenericReturnValue
                                            is_valid);
 
 
struct GNUNET_REVOCATION_Query *
GNUNET_REVOCATION_query (const struct GNUNET_CONFIGURATION_Handle *cfg,
                         const struct GNUNET_IDENTITY_PublicKey *key,
                         GNUNET_REVOCATION_Callback func, void *func_cls);
 
 
void
GNUNET_REVOCATION_query_cancel (struct GNUNET_REVOCATION_Query *q);
 
 
struct GNUNET_REVOCATION_Handle;
 
 
struct GNUNET_REVOCATION_Handle *
GNUNET_REVOCATION_revoke (const struct GNUNET_CONFIGURATION_Handle *cfg,
                          const struct GNUNET_REVOCATION_PowP *pow,
                          GNUNET_REVOCATION_Callback func, void *func_cls);
 
 
void
GNUNET_REVOCATION_revoke_cancel (struct GNUNET_REVOCATION_Handle *h);
 
 
enum GNUNET_GenericReturnValue
GNUNET_REVOCATION_check_pow (const struct GNUNET_REVOCATION_PowP *pow,
                             unsigned int matching_bits,
                             struct GNUNET_TIME_Relative epoch_duration);
 
 
void
GNUNET_REVOCATION_pow_init (const struct GNUNET_IDENTITY_PrivateKey *key,
                            struct GNUNET_REVOCATION_PowP *pow);
 
 
struct GNUNET_REVOCATION_PowCalculationHandle*
GNUNET_REVOCATION_pow_start (struct GNUNET_REVOCATION_PowP *pow,
                             int epochs,
                             unsigned int difficulty);
 
 
enum GNUNET_GenericReturnValue
GNUNET_REVOCATION_pow_round (struct GNUNET_REVOCATION_PowCalculationHandle *pc);
 
 
void
GNUNET_REVOCATION_pow_stop (struct GNUNET_REVOCATION_PowCalculationHandle *pc);
 
size_t
GNUNET_REVOCATION_proof_get_size (const struct GNUNET_REVOCATION_PowP *pow);
 
 
#if 0                           /* keep Emacsens' auto-indent happy */
{
#endif
#ifdef __cplusplus
}
#endif
 
#endif /* GNUNET_REVOCATION_SERVICE_H_ */
 /* end of group revocation */
 /* end of group addition */