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authorLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 03:11:08 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 03:11:08 +0300
commit9eb31227cbccd3a37da0f42604f1ab5fc556bc53 (patch)
tree9aa467e620e002bf01cecdd98e3908e0cc3e7221 /crypto/xts.c
parent527cd20771888443b5d8707debe98f62c7a1f596 (diff)
parentf444ec106407d600f17fa1a4bd14f84577401dec (diff)
downloadlinux-9eb31227cbccd3a37da0f42604f1ab5fc556bc53.tar.xz
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - add AEAD support to crypto engine - allow batch registration in simd Algorithms: - add CFB mode - add speck block cipher - add sm4 block cipher - new test case for crct10dif - improve scheduling latency on ARM - scatter/gather support to gcm in aesni - convert x86 crypto algorithms to skcihper Drivers: - hmac(sha224/sha256) support in inside-secure - aes gcm/ccm support in stm32 - stm32mp1 support in stm32 - ccree driver from staging tree - gcm support over QI in caam - add ks-sa hwrng driver" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (212 commits) crypto: ccree - remove unused enums crypto: ahash - Fix early termination in hash walk crypto: brcm - explicitly cast cipher to hash type crypto: talitos - don't leak pointers to authenc keys crypto: qat - don't leak pointers to authenc keys crypto: picoxcell - don't leak pointers to authenc keys crypto: ixp4xx - don't leak pointers to authenc keys crypto: chelsio - don't leak pointers to authenc keys crypto: caam/qi - don't leak pointers to authenc keys crypto: caam - don't leak pointers to authenc keys crypto: lrw - Free rctx->ext with kzfree crypto: talitos - fix IPsec cipher in length crypto: Deduplicate le32_to_cpu_array() and cpu_to_le32_array() crypto: doc - clarify hash callbacks state machine crypto: api - Keep failed instances alive crypto: api - Make crypto_alg_lookup static crypto: api - Remove unused crypto_type lookup function crypto: chelsio - Remove declaration of static function from header crypto: inside-secure - hmac(sha224) support crypto: inside-secure - hmac(sha256) support ..
Diffstat (limited to 'crypto/xts.c')
-rw-r--r--crypto/xts.c72
1 files changed, 0 insertions, 72 deletions
diff --git a/crypto/xts.c b/crypto/xts.c
index f317c48b5e43..12284183bd20 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -357,78 +357,6 @@ static int decrypt(struct skcipher_request *req)
return do_decrypt(req, init_crypt(req, decrypt_done));
}
-int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *sdst,
- struct scatterlist *ssrc, unsigned int nbytes,
- struct xts_crypt_req *req)
-{
- const unsigned int bsize = XTS_BLOCK_SIZE;
- const unsigned int max_blks = req->tbuflen / bsize;
- struct blkcipher_walk walk;
- unsigned int nblocks;
- le128 *src, *dst, *t;
- le128 *t_buf = req->tbuf;
- int err, i;
-
- BUG_ON(max_blks < 1);
-
- blkcipher_walk_init(&walk, sdst, ssrc, nbytes);
-
- err = blkcipher_walk_virt(desc, &walk);
- nbytes = walk.nbytes;
- if (!nbytes)
- return err;
-
- nblocks = min(nbytes / bsize, max_blks);
- src = (le128 *)walk.src.virt.addr;
- dst = (le128 *)walk.dst.virt.addr;
-
- /* calculate first value of T */
- req->tweak_fn(req->tweak_ctx, (u8 *)&t_buf[0], walk.iv);
-
- i = 0;
- goto first;
-
- for (;;) {
- do {
- for (i = 0; i < nblocks; i++) {
- gf128mul_x_ble(&t_buf[i], t);
-first:
- t = &t_buf[i];
-
- /* PP <- T xor P */
- le128_xor(dst + i, t, src + i);
- }
-
- /* CC <- E(Key2,PP) */
- req->crypt_fn(req->crypt_ctx, (u8 *)dst,
- nblocks * bsize);
-
- /* C <- T xor CC */
- for (i = 0; i < nblocks; i++)
- le128_xor(dst + i, dst + i, &t_buf[i]);
-
- src += nblocks;
- dst += nblocks;
- nbytes -= nblocks * bsize;
- nblocks = min(nbytes / bsize, max_blks);
- } while (nblocks > 0);
-
- *(le128 *)walk.iv = *t;
-
- err = blkcipher_walk_done(desc, &walk, nbytes);
- nbytes = walk.nbytes;
- if (!nbytes)
- break;
-
- nblocks = min(nbytes / bsize, max_blks);
- src = (le128 *)walk.src.virt.addr;
- dst = (le128 *)walk.dst.virt.addr;
- }
-
- return err;
-}
-EXPORT_SYMBOL_GPL(xts_crypt);
-
static int init_tfm(struct crypto_skcipher *tfm)
{
struct skcipher_instance *inst = skcipher_alg_instance(tfm);