int EVP_PKEY_add1_attr_by_OBJ(EVP_PKEY *key,
const ASN1_OBJECT *obj, int type,
const unsigned char *bytes, int len)
{
if(X509at_add1_attr_by_OBJ(&key->attributes, obj,
type, bytes, len)) return 1;
return 0;
}
int CMS_signed_add1_attr_by_OBJ(CMS_SignerInfo *si,
const ASN1_OBJECT *obj, int type,
const void *bytes, int len)
{
if (X509at_add1_attr_by_OBJ(&si->signedAttrs, obj, type, bytes, len))
return 1;
return 0;
}
static TokenError saveKeys(const CertReq *reqs, const char *hostname,
const char *password, FILE *file) {
TokenError error = TokenError_Unknown;
PKCS12 *p12 = NULL;
// Add PKCS7 safes with the keys
STACK_OF(PKCS7) *authsafes = NULL;
uint32_t localKeyId = 0;
size_t error_count = 0;
while (reqs) {
STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
X509 *cert = NULL;
ASN1_OBJECT *objOwningHost = NULL;
uint32_t keyid = htonl(localKeyId++);
bool success = false;
// Add private key
PKCS12_SAFEBAG *bag = PKCS12_add_key(&bags, reqs->privkey,
opensslKeyUsages[reqs->pkcs10->keyUsage], ENC_ITER, ENC_NID, (char*)password);
if (!bag) goto loop_end;
// Add name and localKeyId to the key bag
// TODO extract name from subject DN
char *name = "names are not implemented yet";
if (!X509at_add1_attr_by_NID(&bag->attrib, NID_friendlyName, MBSTRING_UTF8,
(unsigned char*)name, strlen(name)) ||
!PKCS12_add_localkeyid(bag, (unsigned char*)&keyid, sizeof(keyid)))
goto loop_end;
// Add a certificate so we can find the key by the subject name
cert = X509_REQ_to_X509(reqs->x509, 3650, reqs->privkey);
if (!cert ||
!X509_keyid_set1(cert, (unsigned char*)&keyid, sizeof(keyid)))
goto loop_end;
if (!X509_add_ext(cert, makeKeyUsageExt(reqs->pkcs10->keyUsage), -1))
goto loop_end;
if (!PKCS12_add_cert(&bags, cert))
goto loop_end;
// Add hostname (FriBID extension) so we can do same-origin checks
// TODO maybe we should use document.domain instead of document.location.hostname?
objOwningHost = OBJ_txt2obj(OID_OWNING_HOST, 1);
if (!objOwningHost) goto loop_end;
bag = sk_PKCS12_SAFEBAG_value(bags, sk_PKCS12_SAFEBAG_num(bags)-1);
if (!X509at_add1_attr_by_OBJ(&bag->attrib, objOwningHost, MBSTRING_UTF8,
(unsigned char*)hostname, strlen(hostname)))
goto loop_end;
// Add a new authsafe
if (!PKCS12_add_safe(&authsafes, bags, -1, 0, NULL))
goto loop_end;
// Success!
success = true;
loop_end:
if (!success) {
error_count--;
certutil_updateErrorString();
}
ASN1_OBJECT_free(objOwningHost);
X509_free(cert);
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
reqs = reqs->next;
}
if (error_count != 0)
goto end;
// Create the PKCS12 wrapper
p12 = PKCS12_add_safes(authsafes, 0);
if (!p12) {
certutil_updateErrorString();
goto end;
}
PKCS12_set_mac(p12, (char*)password, -1, NULL, 0, MAC_ITER, NULL);
// Save file
if (i2d_PKCS12_fp(file, p12)) {
error = TokenError_Success;
}
end:
sk_PKCS7_pop_free(authsafes, PKCS7_free);
PKCS12_free(p12);
return error;
}