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

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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
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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 */