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authormoneromooo-monero <moneromooo-monero@users.noreply.github.com>2018-11-05 14:23:00 +0000
committermoneromooo-monero <moneromooo-monero@users.noreply.github.com>2018-11-05 14:25:11 +0000
commit00907c3987af00d6eb8ff7144a184a74906a8edf (patch)
tree948f4741ef24c04762c1043c210b3e0f9fe3e1c5 /src
parentMerge pull request #4702 (diff)
downloadmonero-00907c3987af00d6eb8ff7144a184a74906a8edf.tar.xz
rct: speedup commit a little
saves a conversion, and uses a double scalarmult instead of two scalarmults
Diffstat (limited to 'src')
-rw-r--r--src/ringct/rctOps.cpp9
1 files changed, 3 insertions, 6 deletions
diff --git a/src/ringct/rctOps.cpp b/src/ringct/rctOps.cpp
index 41bbf6ca3..6c0588cf6 100644
--- a/src/ringct/rctOps.cpp
+++ b/src/ringct/rctOps.cpp
@@ -117,8 +117,7 @@ namespace rct {
//generates C =aG + bH from b, a is given..
void genC(key & C, const key & a, xmr_amount amount) {
- key bH = scalarmultH(d2h(amount));
- addKeys1(C, a, bH);
+ addKeys2(C, a, d2h(amount), rct::H);
}
//generates a <secret , public> / Pedersen commitment to the amount
@@ -149,10 +148,8 @@ namespace rct {
}
key commit(xmr_amount amount, const key &mask) {
- key c = scalarmultBase(mask);
- key am = d2h(amount);
- key bH = scalarmultH(am);
- addKeys(c, c, bH);
+ key c;
+ genC(c, mask, amount);
return c;
}