GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 23:32:14 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

evm: crypto hash replaced by shash

Browse source 
Using shash is more efficient, because the algorithm is allocated only
once. Only the descriptor to store the hash state needs to be allocated
for every operation.

Changelog v6:
- check for crypto_shash_setkey failure

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
This commit is contained in:
Dmitry Kasatkin 2011-03-09 15:07:36 -05:00 • committed by Mimi Zohar
parent 823eb1ccd0
commit d46eb36995
3 changed files with 56 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

6
security/integrity/evm/evm_main.c
View file

@ -19,6 +19,7 @@
#include <linux/xattr.h>
#include <linux/integrity.h>
#include <linux/evm.h>
#include <crypto/hash.h>
#include "evm.h"
int evm_initialized;
@ -283,12 +284,10 @@ out:
}
EXPORT_SYMBOL_GPL(evm_inode_init_security);
static struct crypto_hash *tfm_hmac; /* preload crypto alg */
static int __init init_evm(void)
{
int error;
tfm_hmac = crypto_alloc_hash(evm_hmac, 0, CRYPTO_ALG_ASYNC);
error = evm_init_secfs();
if (error < 0) {
printk(KERN_INFO "EVM: Error registering secfs\n");
@ -301,7 +300,8 @@ err:
static void __exit cleanup_evm(void)
{
evm_cleanup_secfs();
crypto_free_hash(tfm_hmac);
if (hmac_tfm)
crypto_free_shash(hmac_tfm);
}
/*