1 1.3 riastrad /* $NetBSD: gmac.h,v 1.3 2020/06/29 23:34:48 riastradh Exp $ */ 2 1.1 drochner /* OpenBSD: gmac.h,v 1.1 2010/09/22 11:54:23 mikeb Exp */ 3 1.1 drochner 4 1.1 drochner /* 5 1.1 drochner * Copyright (c) 2010 Mike Belopuhov <mike (at) vantronix.net> 6 1.1 drochner * 7 1.1 drochner * Permission to use, copy, modify, and distribute this software for any 8 1.1 drochner * purpose with or without fee is hereby granted, provided that the above 9 1.1 drochner * copyright notice and this permission notice appear in all copies. 10 1.1 drochner * 11 1.1 drochner * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 1.1 drochner * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 1.1 drochner * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 1.1 drochner * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 1.1 drochner * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 1.1 drochner * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 1.1 drochner * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 1.1 drochner */ 19 1.1 drochner 20 1.1 drochner #ifndef _GMAC_H_ 21 1.1 drochner #define _GMAC_H_ 22 1.1 drochner 23 1.3 riastrad #include <crypto/aes/aes.h> 24 1.1 drochner 25 1.1 drochner #define GMAC_BLOCK_LEN 16 26 1.1 drochner #define GMAC_DIGEST_LEN 16 27 1.1 drochner 28 1.2 drochner #ifdef _LP64 29 1.2 drochner #define GMAC_INT uint64_t 30 1.2 drochner #define GMAC_INTLEN 8 31 1.2 drochner #else 32 1.2 drochner #define GMAC_INT uint32_t 33 1.2 drochner #define GMAC_INTLEN 4 34 1.2 drochner #endif 35 1.2 drochner 36 1.1 drochner typedef struct _GHASH_CTX { 37 1.2 drochner GMAC_INT H[GMAC_BLOCK_LEN/GMAC_INTLEN]; /* hash subkey */ 38 1.2 drochner GMAC_INT S[GMAC_BLOCK_LEN/GMAC_INTLEN]; /* state */ 39 1.2 drochner GMAC_INT Z[GMAC_BLOCK_LEN/GMAC_INTLEN]; /* initial state */ 40 1.1 drochner } GHASH_CTX; 41 1.1 drochner 42 1.1 drochner typedef struct _AES_GMAC_CTX { 43 1.1 drochner GHASH_CTX ghash; 44 1.3 riastrad struct aesenc K; 45 1.1 drochner uint8_t J[GMAC_BLOCK_LEN]; /* counter block */ 46 1.1 drochner int rounds; 47 1.1 drochner } AES_GMAC_CTX; 48 1.1 drochner 49 1.1 drochner #include <sys/cdefs.h> 50 1.1 drochner 51 1.1 drochner __BEGIN_DECLS 52 1.1 drochner void AES_GMAC_Init(AES_GMAC_CTX *); 53 1.1 drochner void AES_GMAC_Setkey(AES_GMAC_CTX *, const uint8_t *, uint16_t); 54 1.1 drochner void AES_GMAC_Reinit(AES_GMAC_CTX *, const uint8_t *, uint16_t); 55 1.1 drochner int AES_GMAC_Update(AES_GMAC_CTX *, const uint8_t *, uint16_t); 56 1.1 drochner void AES_GMAC_Final(uint8_t [GMAC_DIGEST_LEN], AES_GMAC_CTX *); 57 1.1 drochner __END_DECLS 58 1.1 drochner 59 1.1 drochner #endif /* _GMAC_H_ */ 60
Indexes created Sat Sep 20 22:09:52 GMT 2025