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authorLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 13:40:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 13:40:17 -0700
commitbbce2ad2d711c12d93145a7bbdf086e73f414bcd (patch)
tree35432a39f68f4c5df44ed38037cbf05adadb923e /security/keys
parent0f776dc377f6c87f4e4d4a5f63602f33fb93b31e (diff)
parent0f95e2ffc58f5d32a90eb1051d17aeebc21cf91d (diff)
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "Here is the crypto update for 4.8: API: - first part of skcipher low-level conversions - add KPP (Key-agreement Protocol Primitives) interface. Algorithms: - fix IPsec/cryptd reordering issues that affects aesni - RSA no longer does explicit leading zero removal - add SHA3 - add DH - add ECDH - improve DRBG performance by not doing CTR by hand Drivers: - add x86 AVX2 multibuffer SHA256/512 - add POWER8 optimised crc32c - add xts support to vmx - add DH support to qat - add RSA support to caam - add Layerscape support to caam - add SEC1 AEAD support to talitos - improve performance by chaining requests in marvell/cesa - add support for Araneus Alea I USB RNG - add support for Broadcom BCM5301 RNG - add support for Amlogic Meson RNG - add support Broadcom NSP SoC RNG" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (180 commits) crypto: vmx - Fix aes_p8_xts_decrypt build failure crypto: vmx - Ignore generated files crypto: vmx - Adding support for XTS crypto: vmx - Adding asm subroutines for XTS crypto: skcipher - add comment for skcipher_alg->base crypto: testmgr - Print akcipher algorithm name crypto: marvell - Fix wrong flag used for GFP in mv_cesa_dma_add_iv_op crypto: nx - off by one bug in nx_of_update_msc() crypto: rsa-pkcs1pad - fix rsa-pkcs1pad request struct crypto: scatterwalk - Inline start/map/done crypto: scatterwalk - Remove unnecessary BUG in scatterwalk_start crypto: scatterwalk - Remove unnecessary advance in scatterwalk_pagedone crypto: scatterwalk - Fix test in scatterwalk_done crypto: api - Optimise away crypto_yield when hard preemption is on crypto: scatterwalk - add no-copy support to copychunks crypto: scatterwalk - Remove scatterwalk_bytes_sglen crypto: omap - Stop using crypto scatterwalk_bytes_sglen crypto: skcipher - Remove top-level givcipher interface crypto: user - Remove crypto_lookup_skcipher call crypto: cts - Convert to skcipher ...
Diffstat (limited to 'security/keys')
-rw-r--r--security/keys/big_key.c30
1 files changed, 18 insertions, 12 deletions
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 9e443fccad4c..c0b3030b5634 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -18,6 +18,7 @@
#include <keys/user-type.h>
#include <keys/big_key-type.h>
#include <crypto/rng.h>
+#include <crypto/skcipher.h>
/*
* Layout of key payload words.
@@ -74,7 +75,7 @@ static const char big_key_alg_name[] = "ecb(aes)";
* Crypto algorithms for big_key data encryption
*/
static struct crypto_rng *big_key_rng;
-static struct crypto_blkcipher *big_key_blkcipher;
+static struct crypto_skcipher *big_key_skcipher;
/*
* Generate random key to encrypt big_key data
@@ -91,22 +92,26 @@ static int big_key_crypt(enum big_key_op op, u8 *data, size_t datalen, u8 *key)
{
int ret = -EINVAL;
struct scatterlist sgio;
- struct blkcipher_desc desc;
+ SKCIPHER_REQUEST_ON_STACK(req, big_key_skcipher);
- if (crypto_blkcipher_setkey(big_key_blkcipher, key, ENC_KEY_SIZE)) {
+ if (crypto_skcipher_setkey(big_key_skcipher, key, ENC_KEY_SIZE)) {
ret = -EAGAIN;
goto error;
}
- desc.flags = 0;
- desc.tfm = big_key_blkcipher;
+ skcipher_request_set_tfm(req, big_key_skcipher);
+ skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
+ NULL, NULL);
sg_init_one(&sgio, data, datalen);
+ skcipher_request_set_crypt(req, &sgio, &sgio, datalen, NULL);
if (op == BIG_KEY_ENC)
- ret = crypto_blkcipher_encrypt(&desc, &sgio, &sgio, datalen);
+ ret = crypto_skcipher_encrypt(req);
else
- ret = crypto_blkcipher_decrypt(&desc, &sgio, &sgio, datalen);
+ ret = crypto_skcipher_decrypt(req);
+
+ skcipher_request_zero(req);
error:
return ret;
@@ -140,7 +145,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
*
* File content is stored encrypted with randomly generated key.
*/
- size_t enclen = ALIGN(datalen, crypto_blkcipher_blocksize(big_key_blkcipher));
+ size_t enclen = ALIGN(datalen, crypto_skcipher_blocksize(big_key_skcipher));
/* prepare aligned data to encrypt */
data = kmalloc(enclen, GFP_KERNEL);
@@ -288,7 +293,7 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
struct file *file;
u8 *data;
u8 *enckey = (u8 *)key->payload.data[big_key_data];
- size_t enclen = ALIGN(datalen, crypto_blkcipher_blocksize(big_key_blkcipher));
+ size_t enclen = ALIGN(datalen, crypto_skcipher_blocksize(big_key_skcipher));
data = kmalloc(enclen, GFP_KERNEL);
if (!data)
@@ -359,9 +364,10 @@ static int __init big_key_crypto_init(void)
goto error;
/* init block cipher */
- big_key_blkcipher = crypto_alloc_blkcipher(big_key_alg_name, 0, 0);
- if (IS_ERR(big_key_blkcipher)) {
- big_key_blkcipher = NULL;
+ big_key_skcipher = crypto_alloc_skcipher(big_key_alg_name,
+ 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(big_key_skcipher)) {
+ big_key_skcipher = NULL;
ret = -EFAULT;
goto error;
}