55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
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#ifndef _XTS_FAST_H_
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#define _XTS_FAST_H_
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#include <memory.h>
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#include "aes_key.h"
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#include "twofish.h"
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#include "serpent.h"
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#define CF_AES 0
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#define CF_TWOFISH 1
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#define CF_SERPENT 2
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#define CF_AES_TWOFISH 3
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#define CF_TWOFISH_SERPENT 4
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#define CF_SERPENT_AES 5
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#define CF_AES_TWOFISH_SERPENT 6
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#define CF_CIPHERS_NUM 7
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#define XTS_SECTOR_SIZE 512
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#define XTS_BLOCK_SIZE 16
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#define XTS_BLOCKS_IN_SECTOR (XTS_SECTOR_SIZE / XTS_BLOCK_SIZE)
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#define XTS_KEY_SIZE 32
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#define XTS_FULL_KEY (XTS_KEY_SIZE*3*2)
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typedef void (_stdcall *xts_proc)(const unsigned char *in, unsigned char *out, size_t len, unsigned __int64 offset, void *key);
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typedef __declspec(align(16)) struct _xts_key {
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struct {
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aes256_key aes;
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twofish256_key twofish;
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serpent256_key serpent;
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} crypt_k;
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struct {
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aes256_key aes;
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twofish256_key twofish;
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serpent256_key serpent;
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} tweak_k;
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xts_proc encrypt;
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xts_proc decrypt;
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} xts_key;
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int _stdcall xts_init(int hw_crypt);
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void _stdcall xts_set_key(const unsigned char *key, int alg, xts_key *skey);
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int _stdcall xts_aes_ni_available();
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#define xts_encrypt(_in, _out, _len, _offset, _key) ( (_key)->encrypt(_in, _out, _len, _offset, _key) )
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#define xts_decrypt(_in, _out, _len, _offset, _key) ( (_key)->decrypt(_in, _out, _len, _offset, _key) )
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#ifdef _M_IX86
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extern long save_fpu_state(unsigned char state[32]);
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extern void load_fpu_state(unsigned char state[32]);
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#endif
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#endif
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