From a9e4192e711de0018664346ccd33a9bbb0637572 Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Wed, 5 Sep 2018 14:33:21 +0200 Subject: [PATCH] rsa/rsa_ossl.c: fix and extend commentary [skip ci]. Reviewed-by: Richard Levitte Reviewed-by: Nicola Tuveri (Merged from https://github.com/openssl/openssl/pull/7123) (cherry picked from commit d1c008f66bad435b18aa45aa59f72bed7c682849) --- crypto/rsa/rsa_ossl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/crypto/rsa/rsa_ossl.c b/crypto/rsa/rsa_ossl.c index d581777eec..2b1b006c28 100644 --- a/crypto/rsa/rsa_ossl.c +++ b/crypto/rsa/rsa_ossl.c @@ -680,10 +680,11 @@ static int rsa_ossl_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx) */ || !bn_mod_sub_fixed_top(r1, r1, m1, rsa->p) - /* r0 = r0 * iqmp mod p */ + /* r1 = r1 * iqmp mod p */ || !bn_to_mont_fixed_top(r1, r1, rsa->_method_mod_p, ctx) || !bn_mul_mont_fixed_top(r1, r1, rsa->iqmp, rsa->_method_mod_p, ctx) + /* r0 = r1 * q + m1 */ || !bn_mul_fixed_top(r0, r1, rsa->q, ctx) || !bn_mod_add_fixed_top(r0, r0, m1, rsa->n)) goto err; -- 2.25.1