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authorEric Biggers <ebiggers@google.com>2018-02-19 23:48:25 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-03-03 00:03:34 +0800
commit217afccf65064709fb032652ee17cc0a8f68b7b5 (patch)
treea23d950380c22371b64cddbfc5f05aef22db6756 /include/crypto
parenteb66ecd56107e563de65121866990ec07142245d (diff)
downloadlinux-217afccf65064709fb032652ee17cc0a8f68b7b5.tar.bz2
crypto: lrw - remove lrw_crypt()
Now that all users of lrw_crypt() have been removed in favor of the LRW template wrapping an ECB mode algorithm, remove lrw_crypt(). Also remove crypto/lrw.h as that is no longer needed either; and fold 'struct lrw_table_ctx' into 'struct priv', lrw_init_table() into setkey(), and lrw_free_table() into exit_tfm(). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/lrw.h44
1 files changed, 0 insertions, 44 deletions
diff --git a/include/crypto/lrw.h b/include/crypto/lrw.h
deleted file mode 100644
index a9d44c06d081..000000000000
--- a/include/crypto/lrw.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _CRYPTO_LRW_H
-#define _CRYPTO_LRW_H
-
-#include <crypto/b128ops.h>
-
-struct scatterlist;
-struct gf128mul_64k;
-struct blkcipher_desc;
-
-#define LRW_BLOCK_SIZE 16
-
-struct lrw_table_ctx {
- /* optimizes multiplying a random (non incrementing, as at the
- * start of a new sector) value with key2, we could also have
- * used 4k optimization tables or no optimization at all. In the
- * latter case we would have to store key2 here */
- struct gf128mul_64k *table;
- /* stores:
- * key2*{ 0,0,...0,0,0,0,1 }, key2*{ 0,0,...0,0,0,1,1 },
- * key2*{ 0,0,...0,0,1,1,1 }, key2*{ 0,0,...0,1,1,1,1 }
- * key2*{ 0,0,...1,1,1,1,1 }, etc
- * needed for optimized multiplication of incrementing values
- * with key2 */
- be128 mulinc[128];
-};
-
-int lrw_init_table(struct lrw_table_ctx *ctx, const u8 *tweak);
-void lrw_free_table(struct lrw_table_ctx *ctx);
-
-struct lrw_crypt_req {
- be128 *tbuf;
- unsigned int tbuflen;
-
- struct lrw_table_ctx *table_ctx;
- void *crypt_ctx;
- void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
-};
-
-int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
- struct scatterlist *src, unsigned int nbytes,
- struct lrw_crypt_req *req);
-
-#endif /* _CRYPTO_LRW_H */