ARCHIVE/rippled
1
0
Fork 0
mirror of https://github.com/XRPLF/rippled.git synced 2025-12-06 17:27:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

Class to handle ledger proposals. We need this because they're

Browse Source 
signed and so must be canonicalized.
This commit is contained in:
JoelKatz
2012-05-17 00:42:12 -07:00
parent 4b1dd5dee0
commit 058d4fd480
2 changed files with 109 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
src/LedgerProposal.cpp Normal file
View File

@@ -0,0 +1,61 @@
#include "LedgerProposal.h"
#include <boost/make_shared.hpp>
LedgerProposal::LedgerProposal(SerializerIterator& it) : mKey(boost::make_shared<CKey>())
{
if (it.get32() != sProposeMagic)
throw std::runtime_error("Not a ledger proposal");
mPreviousLedger = it.get256();
mCurrentHash = it.get256();
mPrevHash = it.get256();
mProposeSeq = it.get32();
if (mKey->SetPubKey(it.getVL()))
throw std::runtime_error("Unable to set public key");
mSignature = it.getVL();
mPeerID = Serializer::getSHA512Half(mKey->GetPubKey());
if (!mKey->Verify(getSigningHash(), mSignature))
throw std::runtime_error("Ledger proposal invalid");
}
LedgerProposal::LedgerProposal(CKey::pointer mPrivateKey, const uint256& prevLgr, const uint256& position) :
mPreviousLedger(prevLgr), mCurrentHash(position), mProposeSeq(0), mKey(mPrivateKey)
{
mPeerID = Serializer::getSHA512Half(mKey->GetPubKey());
if (!mKey->Sign(getSigningHash(), mSignature))
throw std::runtime_error("Unable to sign proposal");
}
LedgerProposal::LedgerProposal(LedgerProposal::pointer previous, const uint256& newp) :
mPeerID(previous->mPeerID), mPreviousLedger(previous->mPreviousLedger), mPrevHash(previous->mCurrentHash),
mCurrentHash(newp), mProposeSeq(previous->mProposeSeq + 1), mKey(previous->mKey)
{
if (!mKey->Sign(getSigningHash(), mSignature))
throw std::runtime_error("Unable to sign proposal");
}
void LedgerProposal::add(Serializer& s, bool for_signature) const
{
s.add32(sProposeMagic);
s.add256(mPreviousLedger);
s.add256(mCurrentHash);
s.add256(mPrevHash);
s.add32(mProposeSeq);
if (for_signature)
return;
s.addVL(mKey->GetPubKey());
s.addVL(mSignature);
}
uint256 LedgerProposal::getSigningHash() const
{
Serializer s(104);
add(s, true);
return s.getSHA512Half();
}