From 26d7fce13d469f8d1a1b42131467ed4a65f8137b Mon Sep 17 00:00:00 2001 From: Pauli Date: Thu, 1 Nov 2018 08:44:11 +1000 Subject: [PATCH] Add a constant time flag to one of the bignums to avoid a timing leak. Reviewed-by: Tim Hudson (Merged from https://github.com/openssl/openssl/pull/7549) (cherry picked from commit 00496b6423605391864fbbd1693f23631a1c5239) --- crypto/dsa/dsa_ossl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/crypto/dsa/dsa_ossl.c b/crypto/dsa/dsa_ossl.c index be58625db3..868283ac63 100644 --- a/crypto/dsa/dsa_ossl.c +++ b/crypto/dsa/dsa_ossl.c @@ -225,6 +225,7 @@ static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, } while (BN_is_zero(k)); BN_set_flags(k, BN_FLG_CONSTTIME); + BN_set_flags(l, BN_FLG_CONSTTIME); if (dsa->flags & DSA_FLAG_CACHE_MONT_P) { if (!BN_MONT_CTX_set_locked(&dsa->method_mont_p, -- 2.25.1