diff options
Diffstat (limited to 'src/crypto/fipsmodule/ec/ec_montgomery.c')
| -rw-r--r-- | src/crypto/fipsmodule/ec/ec_montgomery.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/crypto/fipsmodule/ec/ec_montgomery.c b/src/crypto/fipsmodule/ec/ec_montgomery.c index caa19661..0cf1d910 100644 --- a/src/crypto/fipsmodule/ec/ec_montgomery.c +++ b/src/crypto/fipsmodule/ec/ec_montgomery.c @@ -282,7 +282,8 @@ void ec_GFp_mont_add(const EC_GROUP *group, EC_RAW_POINT *out, BN_ULONG yneq = ec_felem_non_zero_mask(group, &r); // This case will never occur in the constant-time |ec_GFp_mont_mul|. - if (!xneq && !yneq && z1nz && z2nz) { + BN_ULONG is_nontrivial_double = ~xneq & ~yneq & z1nz & z2nz; + if (is_nontrivial_double) { ec_GFp_mont_dbl(group, out, a); return; } @@ -470,6 +471,7 @@ DEFINE_METHOD_FUNCTION(EC_METHOD, EC_GFp_mont_method) { out->add = ec_GFp_mont_add; out->dbl = ec_GFp_mont_dbl; out->mul = ec_GFp_mont_mul; + out->mul_base = ec_GFp_mont_mul_base; out->mul_public = ec_GFp_mont_mul_public; out->felem_mul = ec_GFp_mont_felem_mul; out->felem_sqr = ec_GFp_mont_felem_sqr; |