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/*
This file is part of GNUnet
(C) 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file secretsharing/secretsharing_protocol.h
* @brief p2p message definitions for secretsharing
* @author Florian Dold
*/
#ifndef GNUNET_SECRETSHARING_PROTOCOL_H
#define GNUNET_SECRETSHARING_PROTOCOL_H
#include "platform.h"
#include "gnunet_common.h"
#include "gnunet_protocols.h"
/**
* Bit length used for the Paillier crypto system.
*/
#define PAILLIER_BITS 2048
/**
* Big endian representation of the prime field order used
* for ElGamal.
*/
#define ELGAMAL_Q_DATA {0x00 /* FIXME */};
GNUNET_NETWORK_STRUCT_BEGIN
/**
* Public key for the Paillier crypto system.
*/
struct PaillierPublicKey
{
/**
* Network order representation of the
* g-component.
*/
uint32_t g[PAILLIER_BITS / 8 / sizeof (uint32_t)];
/**
* Network order representation of the
* n-component.
*/
uint32_t n[PAILLIER_BITS / 8 / sizeof (uint32_t)];
};
/**
* Consensus element data used in the first round of key generation.
*/
struct GNUNET_SECRETSHARING_KeygenCommitData
{
/**
* Signature over the rest of the message.
*/
struct GNUNET_CRYPTO_EddsaSignature signature;
/**
* Signature purpose for signing the keygen commit data.
*/
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
/**
* Peer that inserts this element.
*/
struct GNUNET_PeerIdentity peer;
/**
* Ephemeral paillier public key used by 'peer' for
* this session.
*/
struct PaillierPublicKey pubkey GNUNET_PACKED;
/**
* Commitment of 'peer' to his presecret.
*/
struct GNUNET_HashCode commitment GNUNET_PACKED;
};
struct GNUNET_SECRETSHARING_KeygenRevealData
{
/**
* Signature over rest of the message.
*/
struct GNUNET_CRYPTO_EddsaSignature signature;
/*
* Signature purpose for signing the keygen commit data.
*/
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
/**
* Peer that inserts this element.
*/
struct GNUNET_PeerIdentity peer;
/* values follow */
};
GNUNET_NETWORK_STRUCT_END
#endif
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