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BN_zero fix

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This commit is contained in:
van Hauser 2020-01-29 12:24:46 +01:00
parent 13934c5b19
commit 60c76d0c64
1 changed files with 7 additions and 6 deletions
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13
hydra-mod.c
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@ -466,24 +466,25 @@ int32_t internal__hydra_connect(char *host, int32_t port, int32_t type, int32_t
#if defined(LIBOPENSSL) && !defined(LIBRESSL_VERSION_NUMBER)
RSA *ssl_temp_rsa_cb(SSL * ssl, int32_t export, int32_t keylength) {
int32_t ok = 0;
int32_t nok = 0;
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L
BIGNUM *n;
n = BN_new();
if ((n = BN_new()) == NULL)
nok = 1;
RSA_get0_key(rsa, (const struct bignum_st **)&n, NULL, NULL);
ok = BN_zero(n);
BN_zero(n);
#else
if (rsa->n == 0)
ok = 1;
nok = 1;
#endif
if(ok == 0 && RSA_size(rsa)!=(keylength/8)){ // n is not zero
if (nok == 0 && RSA_size(rsa)!=(keylength/8)){ // n is not zero
#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000L
BN_free(n);
#endif
RSA_free(rsa);
rsa = NULL;
}
if (ok != 0) { // n is zero
if (nok != 0) { // n is zero
#if defined(NO_RSA_LEGACY) || OPENSSL_VERSION_NUMBER >= 0x10100000L
RSA *rsa = RSA_new();
BIGNUM *f4 = BN_new();