linux/include/crypto/xts.h
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   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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