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PKCS#7: Add OIDs for sha224, sha284 and sha512 hash algos and use them 

Add OIDs for sha224, sha284 and sha512 hash algos and use them to select
the hashing algorithm.  Without this, something like the following error
might get written to dmesg:

[   31.829322] PKCS7: Unknown OID: [32] 2.16.840.1.101.3.4.2.3
[   31.829328] PKCS7: Unknown OID: [180] 2.16.840.1.101.3.4.2.3
[   31.829330] Unsupported digest algo: 55

Where the 55 on the third line is OID__NR indicating an unknown OID.

Reported-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-By: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: James Morris <james.l.morris@oracle.com>
This commit is contained in:
David Howells 2015-08-30 16:59:57 +01:00 committed by James Morris
parent 3f1d44ae64
commit 07f081fb50
3 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
crypto/asymmetric_keys/mscode_parser.c
View File

@ -97,6 +97,15 @@ int mscode_note_digest_algo(void *context, size_t hdrlen,
case OID_sha256:
ctx->digest_algo = HASH_ALGO_SHA256;
break;
case OID_sha384:
ctx->digest_algo = HASH_ALGO_SHA384;
break;
case OID_sha512:
ctx->digest_algo = HASH_ALGO_SHA512;
break;
case OID_sha224:
ctx->digest_algo = HASH_ALGO_SHA224;
break;
case OID__NR:
sprint_oid(value, vlen, buffer, sizeof(buffer));

8
crypto/asymmetric_keys/pkcs7_parser.c
View File

@ -229,6 +229,14 @@ int pkcs7_sig_note_digest_algo(void *context, size_t hdrlen,
case OID_sha256:
ctx->sinfo->sig.pkey_hash_algo = HASH_ALGO_SHA256;
break;
case OID_sha384:
ctx->sinfo->sig.pkey_hash_algo = HASH_ALGO_SHA384;
break;
case OID_sha512:
ctx->sinfo->sig.pkey_hash_algo = HASH_ALGO_SHA512;
break;
case OID_sha224:
ctx->sinfo->sig.pkey_hash_algo = HASH_ALGO_SHA224;
default:
printk("Unsupported digest algo: %u\n", ctx->last_oid);
return -ENOPKG;

3
include/linux/oid_registry.h
View File

@ -63,6 +63,9 @@ enum OID {
OID_certAuthInfoAccess, /* 1.3.6.1.5.5.7.1.1 */
OID_sha1, /* 1.3.14.3.2.26 */
OID_sha256, /* 2.16.840.1.101.3.4.2.1 */
OID_sha384, /* 2.16.840.1.101.3.4.2.2 */
OID_sha512, /* 2.16.840.1.101.3.4.2.3 */
OID_sha224, /* 2.16.840.1.101.3.4.2.4 */
/* Distinguished Name attribute IDs [RFC 2256] */
OID_commonName, /* 2.5.4.3 */