summaryrefslogtreecommitdiff
path: root/crypto/asymmetric_keys/pkcs7_verify.c
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2016-04-06 16:13:33 +0100
committerDavid Howells <dhowells@redhat.com>2016-04-06 16:13:33 +0100
commit77d0910d153a7946df17cc15d3f423e534345f65 (patch)
tree2b32d94de42a5a2003b5bd5966e3e73f78d04934 /crypto/asymmetric_keys/pkcs7_verify.c
parenta022ec02691cf68e1fe237d5f79d54aa95446cc6 (diff)
downloadlinux-77d0910d153a7946df17cc15d3f423e534345f65.tar.gz
X.509: Retain the key verification data
Retain the key verification data (ie. the struct public_key_signature) including the digest and the key identifiers. Note that this means that we need to take a separate copy of the digest in x509_get_sig_params() rather than lumping it in with the crypto layer data. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'crypto/asymmetric_keys/pkcs7_verify.c')
-rw-r--r--crypto/asymmetric_keys/pkcs7_verify.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/crypto/asymmetric_keys/pkcs7_verify.c b/crypto/asymmetric_keys/pkcs7_verify.c
index 50be2a15e531..d8d8d234874e 100644
--- a/crypto/asymmetric_keys/pkcs7_verify.c
+++ b/crypto/asymmetric_keys/pkcs7_verify.c
@@ -174,6 +174,7 @@ static int pkcs7_find_key(struct pkcs7_message *pkcs7,
static int pkcs7_verify_sig_chain(struct pkcs7_message *pkcs7,
struct pkcs7_signed_info *sinfo)
{
+ struct public_key_signature *sig;
struct x509_certificate *x509 = sinfo->signer, *p;
struct asymmetric_key_id *auth;
int ret;
@@ -193,14 +194,15 @@ static int pkcs7_verify_sig_chain(struct pkcs7_message *pkcs7,
goto maybe_missing_crypto_in_x509;
pr_debug("- issuer %s\n", x509->issuer);
- if (x509->akid_id)
+ sig = x509->sig;
+ if (sig->auth_ids[0])
pr_debug("- authkeyid.id %*phN\n",
- x509->akid_id->len, x509->akid_id->data);
- if (x509->akid_skid)
+ sig->auth_ids[0]->len, sig->auth_ids[0]->data);
+ if (sig->auth_ids[1])
pr_debug("- authkeyid.skid %*phN\n",
- x509->akid_skid->len, x509->akid_skid->data);
+ sig->auth_ids[1]->len, sig->auth_ids[1]->data);
- if ((!x509->akid_id && !x509->akid_skid) ||
+ if ((!x509->sig->auth_ids[0] && !x509->sig->auth_ids[1]) ||
strcmp(x509->subject, x509->issuer) == 0) {
/* If there's no authority certificate specified, then
* the certificate must be self-signed and is the root
@@ -224,7 +226,7 @@ static int pkcs7_verify_sig_chain(struct pkcs7_message *pkcs7,
/* Look through the X.509 certificates in the PKCS#7 message's
* list to see if the next one is there.
*/
- auth = x509->akid_id;
+ auth = sig->auth_ids[0];
if (auth) {
pr_debug("- want %*phN\n", auth->len, auth->data);
for (p = pkcs7->certs; p; p = p->next) {
@@ -234,7 +236,7 @@ static int pkcs7_verify_sig_chain(struct pkcs7_message *pkcs7,
goto found_issuer_check_skid;
}
} else {
- auth = x509->akid_skid;
+ auth = sig->auth_ids[1];
pr_debug("- want %*phN\n", auth->len, auth->data);
for (p = pkcs7->certs; p; p = p->next) {
if (!p->skid)
@@ -254,8 +256,8 @@ static int pkcs7_verify_sig_chain(struct pkcs7_message *pkcs7,
/* We matched issuer + serialNumber, but if there's an
* authKeyId.keyId, that must match the CA subjKeyId also.
*/
- if (x509->akid_skid &&
- !asymmetric_key_id_same(p->skid, x509->akid_skid)) {
+ if (sig->auth_ids[1] &&
+ !asymmetric_key_id_same(p->skid, sig->auth_ids[1])) {
pr_warn("Sig %u: X.509 chain contains auth-skid nonmatch (%u->%u)\n",
sinfo->index, x509->index, p->index);
return -EKEYREJECTED;