diff options
Diffstat (limited to 'crypto/rsa/rsa_chk.c')
| -rw-r--r-- | crypto/rsa/rsa_chk.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/crypto/rsa/rsa_chk.c b/crypto/rsa/rsa_chk.c index cccc2d5bac2a..c2549188f556 100644 --- a/crypto/rsa/rsa_chk.c +++ b/crypto/rsa/rsa_chk.c @@ -1,5 +1,5 @@ /* - * Copyright 1999-2022 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 1999-2023 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -124,13 +124,17 @@ static int rsa_validate_keypair_multiprime(const RSA *key, BN_GENCB *cb) ret = -1; goto err; } + if (!BN_div(m, NULL, l, m, ctx)) { /* remainder is 0 */ + ret = -1; + goto err; + } for (idx = 0; idx < ex_primes; idx++) { pinfo = sk_RSA_PRIME_INFO_value(key->prime_infos, idx); if (!BN_sub(k, pinfo->r, BN_value_one())) { ret = -1; goto err; } - if (!BN_mul(l, l, k, ctx)) { + if (!BN_mul(l, m, k, ctx)) { ret = -1; goto err; } @@ -138,12 +142,12 @@ static int rsa_validate_keypair_multiprime(const RSA *key, BN_GENCB *cb) ret = -1; goto err; } + if (!BN_div(m, NULL, l, m, ctx)) { /* remainder is 0 */ + ret = -1; + goto err; + } } - if (!BN_div(k, NULL, l, m, ctx)) { /* remainder is 0 */ - ret = -1; - goto err; - } - if (!BN_mod_mul(i, key->d, key->e, k, ctx)) { + if (!BN_mod_mul(i, key->d, key->e, m, ctx)) { ret = -1; goto err; } |