static int
set_private_key(hx509_context context,
SecKeychainItemRef itemRef,
hx509_cert cert)
{
struct kc_rsa *kc;
hx509_private_key key;
RSA *rsa;
int ret;
ret = _hx509_private_key_init(&key, NULL, NULL);
if (ret)
return ret;
kc = calloc(1, sizeof(*kc));
if (kc == NULL)
_hx509_abort("out of memory");
kc->item = itemRef;
rsa = RSA_new();
if (rsa == NULL)
_hx509_abort("out of memory");
/* Argh, fake modulus since OpenSSL API is on crack */
{
SecKeychainAttributeList *attrs = NULL;
uint32_t size;
void *data;
rsa->n = BN_new();
if (rsa->n == NULL) abort();
ret = getAttribute(itemRef, kSecKeyKeySizeInBits, &attrs);
if (ret) abort();
size = *(uint32_t *)attrs->attr[0].data;
SecKeychainItemFreeAttributesAndData(attrs, NULL);
kc->keysize = (size + 7) / 8;
data = malloc(kc->keysize);
memset(data, 0xe0, kc->keysize);
BN_bin2bn(data, kc->keysize, rsa->n);
free(data);
}
rsa->e = NULL;
RSA_set_method(rsa, &kc_rsa_pkcs1_method);
ret = RSA_set_app_data(rsa, kc);
if (ret != 1)
_hx509_abort("RSA_set_app_data");
_hx509_private_key_assign_rsa(key, rsa);
_hx509_cert_assign_key(cert, key);
return 0;
}
static int
collect_private_key(hx509_context context,
struct p11_module *p, struct p11_slot *slot,
CK_SESSION_HANDLE session,
CK_OBJECT_HANDLE object,
void *ptr, CK_ATTRIBUTE *query, int num_query)
{
struct hx509_collector *collector = ptr;
hx509_private_key key;
heim_octet_string localKeyId;
int ret;
RSA *rsa;
struct p11_rsa *p11rsa;
localKeyId.data = query[0].pValue;
localKeyId.length = query[0].ulValueLen;
ret = _hx509_private_key_init(&key, NULL, NULL);
if (ret)
return ret;
rsa = RSA_new();
if (rsa == NULL)
_hx509_abort("out of memory");
/*
* The exponent and modulus should always be present according to
* the pkcs11 specification, but some smartcards leaves it out,
* let ignore any failure to fetch it.
*/
rsa->n = getattr_bn(p, slot, session, object, CKA_MODULUS);
rsa->e = getattr_bn(p, slot, session, object, CKA_PUBLIC_EXPONENT);
p11rsa = calloc(1, sizeof(*p11rsa));
if (p11rsa == NULL)
_hx509_abort("out of memory");
p11rsa->p = p;
p11rsa->slot = slot;
p11rsa->private_key = object;
p->refcount++;
if (p->refcount == 0)
_hx509_abort("pkcs11 refcount to high");
RSA_set_method(rsa, &p11_rsa_pkcs1_method);
ret = RSA_set_app_data(rsa, p11rsa);
if (ret != 1)
_hx509_abort("RSA_set_app_data");
_hx509_private_key_assign_rsa(key, rsa);
ret = _hx509_collector_private_key_add(context,
collector,
hx509_signature_rsa(),
key,
NULL,
&localKeyId);
if (ret) {
_hx509_private_key_free(&key);
return ret;
}
return 0;
}