int dump_certs_keys_p12 (BIO *out, PKCS12 *p12, char *pass,
int passlen, int options, char *pempass)
{
STACK_OF(PKCS7) *asafes;
STACK_OF(PKCS12_SAFEBAG) *bags;
int i, bagnid;
PKCS7 *p7;
if (!( asafes = PKCS12_unpack_authsafes(p12))) return 0;
for (i = 0; i < sk_PKCS7_num (asafes); i++) {
p7 = sk_PKCS7_value (asafes, i);
bagnid = OBJ_obj2nid (p7->type);
if (bagnid == NID_pkcs7_data) {
bags = PKCS12_unpack_p7data(p7);
if (options & INFO) BIO_printf (bio_err, "PKCS7 Data\n");
} else if (bagnid == NID_pkcs7_encrypted) {
if (options & INFO) {
BIO_printf(bio_err, "PKCS7 Encrypted data: ");
alg_print(bio_err,
p7->d.encrypted->enc_data->algorithm);
}
bags = PKCS12_unpack_p7encdata(p7, pass, passlen);
} else continue;
if (!bags) return 0;
if (!dump_certs_pkeys_bags (out, bags, pass, passlen,
options, pempass)) {
sk_PKCS12_SAFEBAG_pop_free (bags, PKCS12_SAFEBAG_free);
return 0;
}
sk_PKCS12_SAFEBAG_pop_free (bags, PKCS12_SAFEBAG_free);
}
sk_PKCS7_pop_free (asafes, PKCS7_free);
return 1;
}
static char *find_friendly_name(PKCS12 *p12)
{
STACK_OF(PKCS7) *safes;
int n, m;
char *name = NULL;
PKCS7 *safe;
STACK_OF(PKCS12_SAFEBAG) *bags;
PKCS12_SAFEBAG *bag;
if ((safes = PKCS12_unpack_authsafes(p12)) == NULL)
return NULL;
for (n = 0; n < sk_PKCS7_num(safes) && name == NULL; n++) {
safe = sk_PKCS7_value(safes, n);
if (OBJ_obj2nid(safe->type) != NID_pkcs7_data
|| (bags = PKCS12_unpack_p7data(safe)) == NULL)
continue;
for (m = 0; m < sk_PKCS12_SAFEBAG_num(bags) && name == NULL; m++) {
bag = sk_PKCS12_SAFEBAG_value(bags, m);
name = PKCS12_get_friendlyname(bag);
}
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
}
sk_PKCS7_pop_free(safes, PKCS7_free);
return name;
}
static EVP_PKEY *getPrivateKey(PKCS12 *p12, X509 *x509, const char* pass) {
// Extract all PKCS7 safes
STACK_OF(PKCS7) *pkcs7s = PKCS12_unpack_authsafes(p12);
if (!pkcs7s) {
certutil_updateErrorString();
return NULL;
}
// For each PKCS7 safe
int nump = sk_PKCS7_num(pkcs7s);
for (int p = 0; p < nump; p++) {
PKCS7 *p7 = sk_PKCS7_value(pkcs7s, p);
if (!p7) continue;
STACK_OF(PKCS12_SAFEBAG) *safebags = PKCS12_unpack_p7data(p7);
if (!safebags) continue;
// For each PKCS12 safebag
int numb = sk_PKCS12_SAFEBAG_num(safebags);
for (int i = 0; i < numb; i++) {
PKCS12_SAFEBAG *bag = sk_PKCS12_SAFEBAG_value(safebags, i);
if (!bag) continue;
switch (M_PKCS12_bag_type(bag)) {
case NID_pkcs8ShroudedKeyBag:;
// Encrypted key
PKCS8_PRIV_KEY_INFO *p8 = PKCS12_decrypt_skey(bag, pass, strlen(pass));
if (p8) {
EVP_PKEY *pk = EVP_PKCS82PKEY(p8);
PKCS8_PRIV_KEY_INFO_free(p8);
if (!pk) break; // out of switch
if (X509_check_private_key(x509, pk) > 0) {
sk_PKCS12_SAFEBAG_pop_free(safebags, PKCS12_SAFEBAG_free);
sk_PKCS7_pop_free(pkcs7s, PKCS7_free);
return pk;
}
EVP_PKEY_free(pk);
}
break;
}
}
sk_PKCS12_SAFEBAG_pop_free(safebags, PKCS12_SAFEBAG_free);
}
sk_PKCS7_pop_free(pkcs7s, PKCS7_free);
return NULL;
}
/**
* Returns a list of all x509 certificates in a PKCS12 object.
*/
static STACK_OF(X509) *pkcs12_listCerts(PKCS12 *p12) {
STACK_OF(X509) *x509s = sk_X509_new_null();
if (!x509s) return NULL;
// Extract all PKCS7 safes
STACK_OF(PKCS7) *pkcs7s = PKCS12_unpack_authsafes(p12);
if (!pkcs7s) {
certutil_updateErrorString();
sk_X509_free(x509s);
return NULL;
}
// For each PKCS7 safe
int nump = sk_PKCS7_num(pkcs7s);
for (int p = 0; p < nump; p++) {
PKCS7 *p7 = sk_PKCS7_value(pkcs7s, p);
if (!p7) continue;
STACK_OF(PKCS12_SAFEBAG) *safebags = PKCS12_unpack_p7data(p7);
if (!safebags) {
certutil_updateErrorString();
continue;
}
// For each PKCS12 safebag
int numb = sk_PKCS12_SAFEBAG_num(safebags);
for (int i = 0; i < numb; i++) {
PKCS12_SAFEBAG *bag = sk_PKCS12_SAFEBAG_value(safebags, i);
if (!bag) continue;
if (M_PKCS12_bag_type(bag) == NID_certBag) {
// Extract x509 cert
X509 *x509 = PKCS12_certbag2x509(bag);
if (x509 == NULL) {
certutil_updateErrorString();
} else {
sk_X509_push(x509s, x509);
}
}
}
sk_PKCS12_SAFEBAG_pop_free(safebags, PKCS12_SAFEBAG_free);
}
sk_PKCS7_pop_free(pkcs7s, PKCS7_free);
return x509s;
}
static int newpass_p12(PKCS12 *p12, char *oldpass, char *newpass)
{
STACK_OF(PKCS7) *asafes, *newsafes;
STACK_OF(PKCS12_SAFEBAG) *bags;
int i, bagnid, pbe_nid = 0, pbe_iter = 0, pbe_saltlen = 0;
PKCS7 *p7, *p7new;
ASN1_OCTET_STRING *p12_data_tmp = NULL, *macnew = NULL;
unsigned char mac[EVP_MAX_MD_SIZE];
unsigned int maclen;
if (!(asafes = PKCS12_unpack_authsafes(p12))) return 0;
if(!(newsafes = sk_PKCS7_new_null())) return 0;
for (i = 0; i < sk_PKCS7_num (asafes); i++) {
p7 = sk_PKCS7_value(asafes, i);
bagnid = OBJ_obj2nid(p7->type);
if (bagnid == NID_pkcs7_data) {
bags = PKCS12_unpack_p7data(p7);
} else if (bagnid == NID_pkcs7_encrypted) {
bags = PKCS12_unpack_p7encdata(p7, oldpass, -1);
alg_get(p7->d.encrypted->enc_data->algorithm,
&pbe_nid, &pbe_iter, &pbe_saltlen);
} else continue;
if (!bags) {
sk_PKCS7_pop_free(asafes, PKCS7_free);
return 0;
}
if (!newpass_bags(bags, oldpass, newpass)) {
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
sk_PKCS7_pop_free(asafes, PKCS7_free);
return 0;
}
/* Repack bag in same form with new password */
if (bagnid == NID_pkcs7_data) p7new = PKCS12_pack_p7data(bags);
else p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1, NULL,
pbe_saltlen, pbe_iter, bags);
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
if(!p7new) {
sk_PKCS7_pop_free(asafes, PKCS7_free);
return 0;
}
sk_PKCS7_push(newsafes, p7new);
}
sk_PKCS7_pop_free(asafes, PKCS7_free);
/* Repack safe: save old safe in case of error */
p12_data_tmp = p12->authsafes->d.data;
if(!(p12->authsafes->d.data = ASN1_OCTET_STRING_new())) goto saferr;
if(!PKCS12_pack_authsafes(p12, newsafes)) goto saferr;
if(!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen)) goto saferr;
if(!(macnew = ASN1_OCTET_STRING_new())) goto saferr;
if(!ASN1_OCTET_STRING_set(macnew, mac, maclen)) goto saferr;
ASN1_OCTET_STRING_free(p12->mac->dinfo->digest);
p12->mac->dinfo->digest = macnew;
ASN1_OCTET_STRING_free(p12_data_tmp);
return 1;
saferr:
/* Restore old safe */
ASN1_OCTET_STRING_free(p12->authsafes->d.data);
ASN1_OCTET_STRING_free(macnew);
p12->authsafes->d.data = p12_data_tmp;
return 0;
}
static int newpass_p12(PKCS12 *p12, const char *oldpass, const char *newpass)
{
STACK_OF(PKCS7) *asafes = NULL, *newsafes = NULL;
STACK_OF(PKCS12_SAFEBAG) *bags = NULL;
int i, bagnid, pbe_nid = 0, pbe_iter = 0, pbe_saltlen = 0;
PKCS7 *p7, *p7new;
ASN1_OCTET_STRING *p12_data_tmp = NULL, *macoct = NULL;
unsigned char mac[EVP_MAX_MD_SIZE];
unsigned int maclen;
int rv = 0;
if ((asafes = PKCS12_unpack_authsafes(p12)) == NULL)
goto err;
if ((newsafes = sk_PKCS7_new_null()) == NULL)
goto err;
for (i = 0; i < sk_PKCS7_num(asafes); i++) {
p7 = sk_PKCS7_value(asafes, i);
bagnid = OBJ_obj2nid(p7->type);
if (bagnid == NID_pkcs7_data) {
bags = PKCS12_unpack_p7data(p7);
} else if (bagnid == NID_pkcs7_encrypted) {
bags = PKCS12_unpack_p7encdata(p7, oldpass, -1);
if (!alg_get(p7->d.encrypted->enc_data->algorithm,
&pbe_nid, &pbe_iter, &pbe_saltlen))
goto err;
} else {
continue;
}
if (bags == NULL)
goto err;
if (!newpass_bags(bags, oldpass, newpass))
goto err;
/* Repack bag in same form with new password */
if (bagnid == NID_pkcs7_data)
p7new = PKCS12_pack_p7data(bags);
else
p7new = PKCS12_pack_p7encdata(pbe_nid, newpass, -1, NULL,
pbe_saltlen, pbe_iter, bags);
if (!p7new || !sk_PKCS7_push(newsafes, p7new))
goto err;
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
bags = NULL;
}
/* Repack safe: save old safe in case of error */
p12_data_tmp = p12->authsafes->d.data;
if ((p12->authsafes->d.data = ASN1_OCTET_STRING_new()) == NULL)
goto err;
if (!PKCS12_pack_authsafes(p12, newsafes))
goto err;
if (!PKCS12_gen_mac(p12, newpass, -1, mac, &maclen))
goto err;
X509_SIG_get0(NULL, &macoct, p12->mac->dinfo);
if (!ASN1_OCTET_STRING_set(macoct, mac, maclen))
goto err;
rv = 1;
err:
/* Restore old safe if necessary */
if (rv == 1) {
ASN1_OCTET_STRING_free(p12_data_tmp);
} else if (p12_data_tmp != NULL) {
ASN1_OCTET_STRING_free(p12->authsafes->d.data);
p12->authsafes->d.data = p12_data_tmp;
}
sk_PKCS12_SAFEBAG_pop_free(bags, PKCS12_SAFEBAG_free);
sk_PKCS7_pop_free(asafes, PKCS7_free);
sk_PKCS7_pop_free(newsafes, PKCS7_free);
return rv;
}