84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/**
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* Downloaded from
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*
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* http://www.esat.kuleuven.ac.be/~rijmen/rijndael/rijndael-fst-3.0.zip
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*
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* rijndael-alg-fst.h
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*
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* @version 3.0 (December 2000)
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*
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* Optimised ANSI C code for the Rijndael cipher (now AES)
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*
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* @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
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* @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
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* @author Paulo Barreto <paulo.barreto@terra.com.br>
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*
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* This code is hereby placed in the public domain.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __RIJNDAEL_ALG_FST_H
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#define __RIJNDAEL_ALG_FST_H
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#include "tunsafe_types.h"
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#define AESGCM_MAXNR 14
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struct AesContext {
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uint32 rk[(AESGCM_MAXNR + 1) * 4];
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int rounds;
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};
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typedef struct { uint64 hi, lo; } aesgcm_u128;
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struct AesGcm128StaticContext {
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void(*gmult)(uint64 Xi[2], const aesgcm_u128 Htable[16]);
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void(*ghash)(uint64 Xi[2], const aesgcm_u128 Htable[16], const uint8 *inp, size_t len);
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bool use_aesni_gcm_crypt;
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// Don't move H and Htable cause the asm code depends on them
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union { uint64 u[2]; uint32 d[4]; uint8 c[16]; size_t t[16 / sizeof(size_t)]; } H;
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aesgcm_u128 Htable[16];
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AesContext aes;
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};
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struct AesGcm128TempContext {
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AesGcm128StaticContext *sctx;
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union { uint64 u[2]; uint32 d[4]; uint8 c[16]; size_t t[16/sizeof(size_t)]; } EKi,EK0,len, Yi, Xi;
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unsigned int mres, ares;
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};
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void CRYPTO_gcm128_init(AesGcm128StaticContext *ctx, const uint8 *key, int key_size);
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void CRYPTO_gcm128_setiv(AesGcm128TempContext *ctx, AesGcm128StaticContext *sctx, const unsigned char *iv,size_t len);
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void CRYPTO_gcm128_aad(AesGcm128TempContext *ctx,const uint8 *aad,size_t len);
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void CRYPTO_gcm128_encrypt_ctr32(AesGcm128TempContext *ctx, const uint8 *in, uint8 *out, size_t len);
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void CRYPTO_gcm128_decrypt_ctr32(AesGcm128TempContext *ctx, const uint8 *in, uint8 *out, size_t len);
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void CRYPTO_gcm128_finish(AesGcm128TempContext *ctx, unsigned char *tag, size_t len);
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void aesgcm_encrypt(uint8 *dst, const uint8 *src, const size_t src_len,
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const uint8 *ad, const size_t ad_len,
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const uint64 nonce, AesGcm128StaticContext *sctx);
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void aesgcm_decrypt_get_mac(uint8 *dst, const uint8 *src, const size_t src_len,
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const uint8 *ad, const size_t ad_len,
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const uint64 nonce, AesGcm128StaticContext *sctx,
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uint8 mac[16]);
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#if defined(ARCH_CPU_X86_64)
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#define WITH_AESGCM 0
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#endif
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#endif /* __RIJNDAEL_ALG_FST_H */
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