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subaddress: remove unneeded scalarmultBase

This commit is contained in:
kenshi84 2017-10-18 08:46:00 +09:00
parent 8d511f3c24
commit 00cc1fdd22
No known key found for this signature in database
GPG Key ID: 085D092F1F43D51A
1 changed files with 11 additions and 6 deletions
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17
src/cryptonote_core/cryptonote_tx_utils.cpp
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@ -174,9 +174,8 @@ namespace cryptonote
tx.unlock_time = unlock_time; tx.unlock_time = unlock_time;
tx.extra = extra; tx.extra = extra;
keypair txkey = keypair::generate(); keypair txkey;
remove_field_from_tx_extra(tx.extra, typeid(tx_extra_pub_key)); txkey.sec = rct::rct2sk(rct::skGen());
add_tx_pub_key_to_extra(tx, txkey.pub);
tx_key = txkey.sec; tx_key = txkey.sec;
// if we have a stealth payment id, find it and encrypt it with the tx key now // if we have a stealth payment id, find it and encrypt it with the tx key now
@ -323,9 +322,13 @@ namespace cryptonote
if (num_stdaddresses == 0 && num_subaddresses == 1) if (num_stdaddresses == 0 && num_subaddresses == 1)
{ {
txkey.pub = rct::rct2pk(rct::scalarmultKey(rct::pk2rct(single_dest_subaddress.m_spend_public_key), rct::sk2rct(txkey.sec))); txkey.pub = rct::rct2pk(rct::scalarmultKey(rct::pk2rct(single_dest_subaddress.m_spend_public_key), rct::sk2rct(txkey.sec)));
remove_field_from_tx_extra(tx.extra, typeid(tx_extra_pub_key));
add_tx_pub_key_to_extra(tx, txkey.pub);
} }
else
{
txkey.pub = rct::rct2pk(rct::scalarmultBase(rct::sk2rct(txkey.sec)));
}
remove_field_from_tx_extra(tx.extra, typeid(tx_extra_pub_key));
add_tx_pub_key_to_extra(tx, txkey.pub);
std::vector<crypto::public_key> additional_tx_public_keys; std::vector<crypto::public_key> additional_tx_public_keys;
additional_tx_keys.clear(); additional_tx_keys.clear();
@ -348,9 +351,11 @@ namespace cryptonote
keypair additional_txkey; keypair additional_txkey;
if (need_additional_txkeys) if (need_additional_txkeys)
{ {
additional_txkey = keypair::generate(); additional_txkey.sec = rct::rct2sk(rct::skGen());
if (dst_entr.is_subaddress) if (dst_entr.is_subaddress)
additional_txkey.pub = rct::rct2pk(rct::scalarmultKey(rct::pk2rct(dst_entr.addr.m_spend_public_key), rct::sk2rct(additional_txkey.sec))); additional_txkey.pub = rct::rct2pk(rct::scalarmultKey(rct::pk2rct(dst_entr.addr.m_spend_public_key), rct::sk2rct(additional_txkey.sec)));
else
additional_txkey.pub = rct::rct2pk(rct::scalarmultBase(rct::sk2rct(additional_txkey.sec)));
} }
bool r; bool r;