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authorDmitry Kasatkin <d.kasatkin@samsung.com>2013-04-25 10:43:56 +0300
committerMimi Zohar <zohar@linux.vnet.ibm.com>2013-10-25 17:16:58 -0400
commitc7c8bb237fdbff932b5e431aebee5ce862ea07d1 (patch)
tree4cdbc7c250dd4418b47ab45dd1108848b50f8cff /crypto
parent3fe78ca2fb1d61ea598e63fcbf38aec76b36b3a8 (diff)
ima: provide support for arbitrary hash algorithms
In preparation of supporting more hash algorithms with larger hash sizes needed for signature verification, this patch replaces the 20 byte sized digest, with a more flexible structure. The new structure includes the hash algorithm, digest size, and digest. Changelog: - recalculate filedata hash for the measurement list, if the signature hash digest size is greater than 20 bytes. - use generic HASH_ALGO_ - make ima_calc_file_hash static - scripts lindent and checkpatch fixes Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/asymmetric_keys/x509_parser.h2
-rw-r--r--crypto/asymmetric_keys/x509_public_key.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
index 04c81bd0f3f2..87d9cc26f630 100644
--- a/crypto/asymmetric_keys/x509_parser.h
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -21,8 +21,6 @@ struct x509_certificate {
char *authority; /* Authority key fingerprint as hex */
struct tm valid_from;
struct tm valid_to;
- enum pkey_algo pkey_algo : 8; /* Public key algorithm */
- enum hash_algo sig_hash_algo : 8; /* Signature hash algorithm */
const void *tbs; /* Signed data */
unsigned tbs_size; /* Size of signed data */
unsigned raw_sig_size; /* Size of sigature */
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 0a6bfad54916..f83300b6e8c1 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -213,7 +213,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
cert->valid_to.tm_year + 1900, cert->valid_to.tm_mon + 1,
cert->valid_to.tm_mday, cert->valid_to.tm_hour,
cert->valid_to.tm_min, cert->valid_to.tm_sec);
- pr_devel("Cert Signature: %s\n",
+ pr_devel("Cert Signature: %s + %s\n",
+ pkey_algo_name[cert->sig.pkey_algo],
hash_algo_name[cert->sig.pkey_hash_algo]);
if (!cert->fingerprint) {

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