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| author | Jussi Kivilinna <jussi.kivilinna@mbnet.fi> | 2011-11-09 11:56:06 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-11-09 11:56:06 +0800 |
| commit | ce0045561e1edb92e4a509eb433ff52d3afaa258 (patch) | |
| tree | 78c8a6fcd82d966aca6a48d17c9063de34e224e9 /include | |
| parent | f9d2691fc9a00f39b587f965c33cca012a5597bc (diff) | |
| download | linux-ce0045561e1edb92e4a509eb433ff52d3afaa258.tar.gz linux-ce0045561e1edb92e4a509eb433ff52d3afaa258.tar.bz2 linux-ce0045561e1edb92e4a509eb433ff52d3afaa258.zip | |
crypto: xts: add interface for parallelized cipher implementations
Add xts_crypt() function that can be used by cipher implementations that can
benefit from parallelized cipher operations.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/xts.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/crypto/xts.h b/include/crypto/xts.h new file mode 100644 index 000000000000..72c09eb56437 --- /dev/null +++ b/include/crypto/xts.h @@ -0,0 +1,27 @@ +#ifndef _CRYPTO_XTS_H +#define _CRYPTO_XTS_H + +#include <crypto/b128ops.h> + +struct scatterlist; +struct blkcipher_desc; + +#define XTS_BLOCK_SIZE 16 + +struct xts_crypt_req { + be128 *tbuf; + unsigned int tbuflen; + + void *tweak_ctx; + void (*tweak_fn)(void *ctx, u8* dst, const u8* src); + void *crypt_ctx; + void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes); +}; + +#define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x)) + +int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes, + struct xts_crypt_req *req); + +#endif /* _CRYPTO_XTS_H */ |