Root/include/crypto/xts.h

1#ifndef _CRYPTO_XTS_H
2#define _CRYPTO_XTS_H
3
4#include <crypto/b128ops.h>
5
6struct scatterlist;
7struct blkcipher_desc;
8
9#define XTS_BLOCK_SIZE 16
10
11struct xts_crypt_req {
12    be128 *tbuf;
13    unsigned int tbuflen;
14
15    void *tweak_ctx;
16    void (*tweak_fn)(void *ctx, u8* dst, const u8* src);
17    void *crypt_ctx;
18    void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
19};
20
21#define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x))
22
23int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
24          struct scatterlist *src, unsigned int nbytes,
25          struct xts_crypt_req *req);
26
27#endif /* _CRYPTO_XTS_H */
28

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