KeyPair generateKeysFromSeed (KeyType type, RippleAddress const& seed)
{
KeyPair result;
if (! seed.isSet())
{
return result;
}
if (type == KeyType::secp256k1)
{
RippleAddress generator = RippleAddress::createGeneratorPublic (seed);
result.secretKey.setAccountPrivate (generator, seed, 0);
result.publicKey.setAccountPublic (generator, 0);
}
else if (type == KeyType::ed25519)
{
uint256 secretkey = keyFromSeed (seed.getSeed());
Blob ed25519_key (33);
ed25519_key[0] = 0xED;
assert (secretkey.size() + 1 == ed25519_key.size());
memcpy (&ed25519_key[1], secretkey.data(), secretkey.size());
result.secretKey.setAccountPrivate (ed25519_key);
ed25519_publickey (secretkey.data(), &ed25519_key[1]);
result.publicKey.setAccountPublic (ed25519_key);
secretkey.zero(); // security erase
}
else
{
assert (false); // not reached
}
return result;
}
TER AccountSetTransactor::doApply ()
{
std::uint32_t const uTxFlags = mTxn.getFlags ();
std::uint32_t const uFlagsIn = mTxnAccount->getFieldU32 (sfFlags);
std::uint32_t uFlagsOut = uFlagsIn;
std::uint32_t const uSetFlag = mTxn.getFieldU32 (sfSetFlag);
std::uint32_t const uClearFlag = mTxn.getFieldU32 (sfClearFlag);
// legacy AccountSet flags
bool bSetRequireDest = (uTxFlags & TxFlag::requireDestTag) || (uSetFlag == asfRequireDest);
bool bClearRequireDest = (uTxFlags & tfOptionalDestTag) || (uClearFlag == asfRequireDest);
bool bSetRequireAuth = (uTxFlags & tfRequireAuth) || (uSetFlag == asfRequireAuth);
bool bClearRequireAuth = (uTxFlags & tfOptionalAuth) || (uClearFlag == asfRequireAuth);
if (uTxFlags & tfAccountSetMask)
{
m_journal.trace << "Malformed transaction: Invalid flags set.";
return temINVALID_FLAG;
}
//
// RequireAuth (if this issuer needs to allow others to hold its IOUs)
//
if (bSetRequireAuth && bClearRequireAuth)
{
m_journal.trace << "Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if (bSetRequireAuth && !is_bit_set (uFlagsIn, lsfRequireAuth))
{
if (!mEngine->view().dirIsEmpty (Ledger::getOwnerDirIndex (mTxnAccountID)))
{
m_journal.trace << "Retry: Owner directory not empty.";
return is_bit_set(mParams, tapRETRY) ? terOWNERS : tecOWNERS;
}
m_journal.trace << "Set RequireAuth.";
uFlagsOut |= lsfRequireAuth;
}
if (bClearRequireAuth && is_bit_set (uFlagsIn, lsfRequireAuth))
{
m_journal.trace << "Clear RequireAuth.";
uFlagsOut &= ~lsfRequireAuth;
}
//
// RequireDestTag
//
if (bSetRequireDest && bClearRequireDest)
{
m_journal.trace << "Malformed transaction: Contradictory flags set.";
return temINVALID_FLAG;
}
if (bSetRequireDest && !is_bit_set (uFlagsIn, lsfRequireDestTag))
{
m_journal.trace << "Set lsfRequireDestTag.";
uFlagsOut |= lsfRequireDestTag;
}
if (bClearRequireDest && is_bit_set (uFlagsIn, lsfRequireDestTag))
{
m_journal.trace << "Clear lsfRequireDestTag.";
uFlagsOut &= ~lsfRequireDestTag;
}
//
// InflationDest
//
if ( mTxn.isFieldPresent(sfInflationDest) )
{
RippleAddress aInflationDest = mTxn.getFieldAccount(sfInflationDest);
if ( !aInflationDest.isSet() ){
m_journal.debug << "AccountSet: Removing inflation destination.";
mTxnAccount->makeFieldAbsent(sfInflationDest);
}
else
{
if (!mEngine->getLedger()->hasAccount(aInflationDest))
{
m_journal.debug << "AccountSet: Inflation destination account doesn't exist.";
return temDST_NEEDED;
}
m_journal.debug << "AccountSet: Set inflation destination account.";
mTxnAccount->setFieldAccount(sfInflationDest, aInflationDest);
}
}
//
// TransferRate
//
if (mTxn.isFieldPresent (sfTransferRate))
{
std::uint32_t uRate = mTxn.getFieldU32 (sfTransferRate);
if (!uRate || uRate == QUALITY_ONE)
{
m_journal.trace << "unset transfer rate";
mTxnAccount->makeFieldAbsent (sfTransferRate);
}
else if (uRate > QUALITY_ONE)
{
m_journal.trace << "set transfer rate";
mTxnAccount->setFieldU32 (sfTransferRate, uRate);
}
else
{
m_journal.trace << "bad transfer rate";
return temBAD_TRANSFER_RATE;
}
}
if (uFlagsIn != uFlagsOut)
mTxnAccount->setFieldU32 (sfFlags, uFlagsOut);
return tesSUCCESS;
}
Json::Value walletPropose (Json::Value const& params)
{
RippleAddress naSeed;
RippleAddress naAccount;
KeyType type = KeyType::secp256k1;
bool const has_key_type = params.isMember (jss::key_type);
bool const has_passphrase = params.isMember (jss::passphrase);
if (has_key_type)
{
// `key_type` must be valid if present.
type = keyTypeFromString (params[jss::key_type].asString());
if (type == KeyType::invalid)
{
return rpcError (rpcBAD_SEED);
}
naSeed = getSeedFromRPC (params);
}
else if (has_passphrase)
{
naSeed.setSeedGeneric (params[jss::passphrase].asString());
}
else
{
naSeed.setSeedRandom();
}
if (!naSeed.isSet())
{
return rpcError(rpcBAD_SEED);
}
if (type == KeyType::secp256k1)
{
RippleAddress naGenerator = RippleAddress::createGeneratorPublic (naSeed);
naAccount.setAccountPublic (naGenerator, 0);
}
else if (type == KeyType::ed25519)
{
uint256 secretkey = keyFromSeed (naSeed.getSeed());
Blob publickey (33);
publickey[0] = 0xED;
ed25519_publickey (secretkey.data(), &publickey[1]);
secretkey.zero(); // security erase
naAccount.setAccountPublic (publickey);
}
else
{
assert (false); // not reached
}
Json::Value obj (Json::objectValue);
obj[jss::master_seed] = naSeed.humanSeed ();
obj[jss::master_seed_hex] = to_string (naSeed.getSeed ());
obj[jss::master_key] = naSeed.humanSeed1751();
obj[jss::account_id] = naAccount.humanAccountID ();
obj[jss::public_key] = naAccount.humanAccountPublic();
obj[jss::key_type] = to_string (type);
auto acct = naAccount.getAccountPublic();
obj[jss::public_key_hex] = strHex(acct.begin(), acct.size());
return obj;
}