include/sys/sha2.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or https://opensource.org/licenses/CDDL-1.0.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (c) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
  24  */
  25
  26 #ifndef _SYS_SHA2_H
  27 #define _SYS_SHA2_H
  28
  29 #ifdef  _KERNEL
  30 #include <sys/types.h>
  31 #else
  32 #include <stdint.h>
  33 #include <stdlib.h>
  34 #endif
  35
  36 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 #define SHA224_BLOCK_LENGTH             64
  41 #define SHA256_BLOCK_LENGTH             64
  42 #define SHA384_BLOCK_LENGTH             128
  43 #define SHA512_BLOCK_LENGTH             128
  44
  45 #define SHA224_DIGEST_LENGTH            28
  46 #define SHA256_DIGEST_LENGTH            32
  47 #define SHA384_DIGEST_LENGTH            48
  48 #define SHA512_DIGEST_LENGTH            64
  49
  50 #define SHA512_224_DIGEST_LENGTH        28
  51 #define SHA512_256_DIGEST_LENGTH        32
  52
  53 #define SHA256_HMAC_BLOCK_SIZE          64
  54 #define SHA512_HMAC_BLOCK_SIZE          128
  55
  56 /* sha256 context */
  57 typedef struct {
  58         uint32_t state[8];
  59         uint64_t count[2];
  60         uint8_t wbuf[64];
  61
  62         /* const sha256_ops_t *ops */
  63         const void *ops;
  64 } sha256_ctx;
  65
  66 /* sha512 context */
  67 typedef struct {
  68         uint64_t state[8];
  69         uint64_t count[2];
  70         uint8_t wbuf[128];
  71
  72         /* const sha256_ops_t *ops */
  73         const void *ops;
  74 } sha512_ctx;
  75
  76 /* SHA2 context */
  77 typedef struct {
  78         union {
  79                 sha256_ctx sha256;
  80                 sha512_ctx sha512;
  81         };
  82
  83         /* algorithm type */
  84         int algotype;
  85 } SHA2_CTX;
  86
  87 /* SHA2 algorithm types */
  88 typedef enum sha2_mech_type {
  89         SHA512_HMAC_MECH_INFO_TYPE,     /* SUN_CKM_SHA512_HMAC */
  90
  91         /* Not true KCF mech types; used by direct callers to SHA2Init */
  92         SHA256,
  93         SHA512,
  94         SHA512_256,
  95 } sha2_mech_type_t;
  96
  97 /* SHA2 Init function */
  98 extern void SHA2Init(int algotype, SHA2_CTX *ctx);
  99
 100 /* SHA2 Update function */
 101 extern void SHA2Update(SHA2_CTX *ctx, const void *data, size_t len);
 102
 103 /* SHA2 Final function */
 104 extern void SHA2Final(void *digest, SHA2_CTX *ctx);
 105
 106 #ifdef __cplusplus
 107 }
 108 #endif
 109
 110 #endif  /* SYS_SHA2_H */