- work on secretsharing

1 files changed, 99 insertions, 0 deletions

diff --git a/src/secretsharing/secretsharing_protocol.h b/src/secretsharing/secretsharing_protocol.h
new file mode 100644
index 000000000..71e6d50a9
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+++ b/src/secretsharing/secretsharing_protocol.h
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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
+   * g-component.
+   */
+  uint32_t mu[PAILLIER_BITS / 8 / sizeof (uint32_t)];
+};
+
+
+/**
+ * Consensus element data used in the first round of key generation.
+ */
+struct GNUNET_SECRETSHARING_KeygenCommitData
+{
+  /**
+   * 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;
+  /**
+   * Signature over the previous values.
+   */
+  struct GNUNET_CRYPTO_EddsaSignature signature;
+};
+
+GNUNET_NETWORK_STRUCT_END
+
+#endif