monero-project/monero
monero-project/monero
1
0
Fork 0
mirror of https://github.com/monero-project/monero.git synced 2024-12-23 12:09:54 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

ringct: always use outPk.mask to decode amounts

Browse source
This commit is contained in:
moneromooo-monero 2017-12-09 18:01:47 +00:00
parent 2b5abb8269
commit 46eaaae79b
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
1 changed files with 3 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
src/ringct/rctSigs.cpp
View file

@ -936,15 +936,7 @@ namespace rct {
xmr_amount decodeRct(const rctSig & rv, const key & sk, unsigned int i, key & mask) {
CHECK_AND_ASSERT_MES(rv.type == RCTTypeFull || rv.type == RCTTypeFullBulletproof, false, "decodeRct called on non-full rctSig");
CHECK_AND_ASSERT_THROW_MES(i < rv.ecdhInfo.size(), "Bad index");
if (rv.type == RCTTypeFullBulletproof)
{
CHECK_AND_ASSERT_THROW_MES(rv.p.bulletproofs.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.p.bulletproofs and rv.ecdhInfo");
CHECK_AND_ASSERT_THROW_MES(rv.p.bulletproofs[i].V.size() == 1, "Unexpected sizes of rv.p.bulletproofs[i].V");
}
else
{
CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo");
}
CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo");
//mask amount and mask
ecdhTuple ecdh_info = rv.ecdhInfo[i];
@ -972,22 +964,14 @@ namespace rct {
xmr_amount decodeRctSimple(const rctSig & rv, const key & sk, unsigned int i, key &mask) {
CHECK_AND_ASSERT_MES(rv.type == RCTTypeSimple || rv.type == RCTTypeSimpleBulletproof, false, "decodeRct called on non simple rctSig");
CHECK_AND_ASSERT_THROW_MES(i < rv.ecdhInfo.size(), "Bad index");
if (rv.type == RCTTypeSimpleBulletproof)
{
CHECK_AND_ASSERT_THROW_MES(rv.p.bulletproofs.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.p.bulletproofs and rv.ecdhInfo");
CHECK_AND_ASSERT_THROW_MES(rv.p.bulletproofs[i].V.size() == 1, "Unexpected sizes of rv.p.bulletproofs[i].V");
}
else
{
CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo");
}
CHECK_AND_ASSERT_THROW_MES(rv.outPk.size() == rv.ecdhInfo.size(), "Mismatched sizes of rv.outPk and rv.ecdhInfo");
//mask amount and mask
ecdhTuple ecdh_info = rv.ecdhInfo[i];
ecdhDecode(ecdh_info, sk);
mask = ecdh_info.mask;
key amount = ecdh_info.amount;
key C = (rv.type == RCTTypeSimpleBulletproof) ? rv.p.bulletproofs[i].V.front() : rv.outPk[i].mask;
key C = rv.outPk[i].mask;
DP("C");
DP(C);
key Ctmp;