/**
* Get all the RSA private key specifics from an ASN.1 encoded file
*/
int asn1_get_private_key(const uint8_t *buf, int len, RSA_CTX **rsa_ctx)
{
int offset = 7;
uint8_t *modulus = NULL, *priv_exp = NULL, *pub_exp = NULL;
int mod_len, priv_len, pub_len;
#ifdef CONFIG_BIGINT_CRT
uint8_t *p = NULL, *q = NULL, *dP = NULL, *dQ = NULL, *qInv = NULL;
int p_len, q_len, dP_len, dQ_len, qInv_len;
#endif
/* not in der format */
if (buf[0] != ASN1_SEQUENCE) /* basic sanity check */
{
#ifdef CONFIG_SSL_FULL_MODE
printf("Error: This is not a valid ASN.1 file\n");
#endif
return X509_INVALID_PRIV_KEY;
}
/* initialise the RNG */
RNG_initialize(buf, len);
mod_len = asn1_get_int(buf, &offset, &modulus);
pub_len = asn1_get_int(buf, &offset, &pub_exp);
priv_len = asn1_get_int(buf, &offset, &priv_exp);
if (mod_len <= 0 || pub_len <= 0 || priv_len <= 0)
return X509_INVALID_PRIV_KEY;
#ifdef CONFIG_BIGINT_CRT
p_len = asn1_get_int(buf, &offset, &p);
q_len = asn1_get_int(buf, &offset, &q);
dP_len = asn1_get_int(buf, &offset, &dP);
dQ_len = asn1_get_int(buf, &offset, &dQ);
qInv_len = asn1_get_int(buf, &offset, &qInv);
if (p_len <= 0 || q_len <= 0 || dP_len <= 0 || dQ_len <= 0 || qInv_len <= 0)
return X509_INVALID_PRIV_KEY;
RSA_priv_key_new(rsa_ctx,
modulus, mod_len, pub_exp, pub_len, priv_exp, priv_len,
p, p_len, q, p_len, dP, dP_len, dQ, dQ_len, qInv, qInv_len);
free(p);
free(q);
free(dP);
free(dQ);
free(qInv);
#else
RSA_priv_key_new(rsa_ctx,
modulus, mod_len, pub_exp, pub_len, priv_exp, priv_len);
#endif
free(modulus);
free(priv_exp);
free(pub_exp);
return X509_OK;
}
int Curl_axtls_random(struct SessionHandle *data,
unsigned char *entropy,
size_t length)
{
static bool ssl_seeded = FALSE;
(void)data;
if(!ssl_seeded) {
ssl_seeded = TRUE;
/* Initialize the seed if not already done. This call is not exactly thread
* safe (and neither is the ssl_seeded check), but the worst effect of a
* race condition is that some global resources will leak. */
RNG_initialize();
}
get_random((int)length, entropy);
return 0;
}
static SQRESULT sq_axtls_rng_initialize(HSQUIRRELVM v)
{
RNG_initialize();
return 0;
}