diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/rsa/rsa_chk.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/crypto/rsa/rsa_chk.c b/crypto/rsa/rsa_chk.c index f2fc89285b..73ac607da9 100644 --- a/crypto/rsa/rsa_chk.c +++ b/crypto/rsa/rsa_chk.c @@ -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; } |