deon/gnuk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

bug fix for mod.c change

Browse Source
This commit is contained in:
NIIBE Yutaka
2014-01-21 21:02:03 +09:00
parent f21a89588c
commit 9f0e2eabd1
1 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/mod.c
View File

@@ -184,20 +184,20 @@ mod_inv (bn256 *C, const bn256 *X, const bn256 *N)
if (bn256_is_ge (u, v)) if (bn256_is_ge (u, v))
{ {
bn256_sub (u, u, v); bn256_sub (u, u, v);
borrow = bn256_sub (tmp, A, C); borrow = bn256_sub (A, A, C);
if (borrow) if (borrow)
memcpy (tmp, A, sizeof (bn256)); bn256_add (A, A, N);
else else
memcpy (A, tmp, sizeof (bn256)); bn256_add (tmp, A, N);
} }
else else
{ {
bn256_sub (v, v, u); bn256_sub (v, v, u);
borrow = bn256_sub (tmp, C, A); borrow = bn256_sub (C, C, A);
if (borrow) if (borrow)
memcpy (tmp, C, sizeof (bn256)); bn256_add (C, C, N);
else else
memcpy (C, tmp, sizeof (bn256)); bn256_add (tmp, C, N);
} }
} }
} }