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c86a40a361
* Add sha512_half_hasher * Move sha512Half functions to digest.h * Add explicit OpenSSL equivalents
152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <BeastConfig.h>
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#include <ripple/app/ledger/LedgerProposal.h>
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#include <ripple/protocol/digest.h>
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#include <ripple/core/Config.h>
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#include <ripple/protocol/JsonFields.h>
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#include <ripple/protocol/HashPrefix.h>
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#include <ripple/protocol/Serializer.h>
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namespace ripple {
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LedgerProposal::LedgerProposal (
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uint256 const& pLgr,
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std::uint32_t seq,
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uint256 const& tx,
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std::uint32_t closeTime,
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RippleAddress const& publicKey,
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uint256 const& suppression)
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: mPreviousLedger (pLgr)
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, mCurrentHash (tx)
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, mSuppression (suppression)
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, mCloseTime (closeTime)
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, mProposeSeq (seq)
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, mPublicKey (publicKey)
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{
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mPeerID = mPublicKey.getNodeID ();
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mTime = std::chrono::steady_clock::now ();
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}
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LedgerProposal::LedgerProposal (
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RippleAddress const& publicKey,
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uint256 const& prevLgr,
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uint256 const& position,
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std::uint32_t closeTime)
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: mPreviousLedger (prevLgr)
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, mCurrentHash (position)
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, mCloseTime (closeTime)
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, mProposeSeq (seqJoin)
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, mPublicKey (publicKey)
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{
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if (mPublicKey.isValid ())
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mPeerID = mPublicKey.getNodeID ();
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mTime = std::chrono::steady_clock::now ();
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}
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uint256 LedgerProposal::getSigningHash () const
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{
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return sha512Half(
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HashPrefix::proposal,
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std::uint32_t(mProposeSeq),
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std::uint32_t(mCloseTime),
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mPreviousLedger,
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mCurrentHash);
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}
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bool LedgerProposal::checkSign (std::string const& signature) const
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{
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return mPublicKey.verifyNodePublic (
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getSigningHash (),
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signature,
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ECDSA::not_strict);
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}
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bool LedgerProposal::changePosition (
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uint256 const& newPosition,
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std::uint32_t closeTime)
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{
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if (mProposeSeq == seqLeave)
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return false;
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mCurrentHash = newPosition;
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mCloseTime = closeTime;
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mTime = std::chrono::steady_clock::now ();
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++mProposeSeq;
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return true;
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}
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void LedgerProposal::bowOut ()
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{
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mTime = std::chrono::steady_clock::now ();
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mProposeSeq = seqLeave;
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}
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Blob LedgerProposal::sign (RippleAddress const& privateKey)
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{
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Blob ret;
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privateKey.signNodePrivate (getSigningHash (), ret);
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mSuppression = proposalUniqueId (mCurrentHash, mPreviousLedger, mProposeSeq,
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mCloseTime, mPublicKey.getNodePublic (), ret);
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return ret;
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}
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Json::Value LedgerProposal::getJson () const
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{
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Json::Value ret = Json::objectValue;
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ret[jss::previous_ledger] = to_string (mPreviousLedger);
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if (mProposeSeq != seqLeave)
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{
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ret[jss::transaction_hash] = to_string (mCurrentHash);
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ret[jss::propose_seq] = mProposeSeq;
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}
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ret[jss::close_time] = mCloseTime;
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if (mPublicKey.isValid ())
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ret[jss::peer_id] = mPublicKey.humanNodePublic ();
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return ret;
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}
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uint256 proposalUniqueId (
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uint256 const& proposeHash,
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uint256 const& previousLedger,
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std::uint32_t proposeSeq,
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std::uint32_t closeTime,
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Blob const& pubKey,
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Blob const& signature)
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{
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Serializer s (512);
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s.add256 (proposeHash);
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s.add256 (previousLedger);
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s.add32 (proposeSeq);
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s.add32 (closeTime);
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s.addVL (pubKey);
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s.addVL (signature);
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return s.getSHA512Half ();
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}
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} // ripple
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