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[crypto/rsa] Set the constant-time flag in multi-prime RSA too

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Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9779)
This commit is contained in:
Cesar Pereida Garcia 2019-09-06 10:48:00 +03:00 • committed by Matt Caswell
parent 311e903d84
commit d2baf88c43
1 changed files with 6 additions and 3 deletions
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9
crypto/rsa/rsa_lib.c
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@ -409,12 +409,15 @@ int RSA_set0_multi_prime_params(RSA *r, BIGNUM *primes[], BIGNUM *exps[],
if (pinfo == NULL) if (pinfo == NULL)
goto err; goto err;
if (primes[i] != NULL && exps[i] != NULL && coeffs[i] != NULL) { if (primes[i] != NULL && exps[i] != NULL && coeffs[i] != NULL) {
BN_free(pinfo->r); BN_clear_free(pinfo->r);
BN_free(pinfo->d); BN_clear_free(pinfo->d);
BN_free(pinfo->t); BN_clear_free(pinfo->t);
pinfo->r = primes[i]; pinfo->r = primes[i];
pinfo->d = exps[i]; pinfo->d = exps[i];
pinfo->t = coeffs[i]; pinfo->t = coeffs[i];
BN_set_flags(pinfo->r, BN_FLG_CONSTTIME);
BN_set_flags(pinfo->d, BN_FLG_CONSTTIME);
BN_set_flags(pinfo->t, BN_FLG_CONSTTIME);
} else { } else {
rsa_multip_info_free(pinfo); rsa_multip_info_free(pinfo);
goto err; goto err;