117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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/* Copyright 2013 Saso Kiselkov. All rights reserved. */
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#ifndef _SYS_SHA2_H
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#define _SYS_SHA2_H
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#include <sys/types.h> /* for uint_* */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define SHA2_HMAC_MIN_KEY_LEN 1 /* SHA2-HMAC min key length in bytes */
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#define SHA2_HMAC_MAX_KEY_LEN INT_MAX /* SHA2-HMAC max key length in bytes */
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#define SHA256_DIGEST_LENGTH 32 /* SHA256 digest length in bytes */
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#define SHA256_HMAC_BLOCK_SIZE 64 /* SHA256-HMAC block size */
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#define SHA256 0
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#define SHA256_HMAC 1
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#define SHA256_HMAC_GEN 2
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/*
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* SHA2 context.
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* The contents of this structure are a private interface between the
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* Init/Update/Final calls of the functions defined below.
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* Callers must never attempt to read or write any of the fields
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* in this structure directly.
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*/
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typedef struct {
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uint32_t algotype; /* Algorithm Type */
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/* state (ABCDEFGH) */
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union {
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uint32_t s32[8]; /* for SHA256 */
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uint64_t s64[8]; /* for SHA384/512 */
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} state;
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/* number of bits */
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union {
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uint32_t c32[2]; /* for SHA256 , modulo 2^64 */
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uint64_t c64[2]; /* for SHA384/512, modulo 2^128 */
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} count;
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union {
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uint8_t buf8[128]; /* undigested input */
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uint32_t buf32[32]; /* realigned input */
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uint64_t buf64[16]; /* realigned input */
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} buf_un;
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} SHA2_CTX;
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typedef SHA2_CTX SHA256_CTX;
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typedef SHA2_CTX SHA384_CTX;
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typedef SHA2_CTX SHA512_CTX;
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extern void SHA2Init(uint64_t mech, SHA2_CTX *);
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extern void SHA2Update(SHA2_CTX *, const void *, size_t);
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extern void SHA2Final(void *, SHA2_CTX *);
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extern void SHA256Init(SHA256_CTX *);
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extern void SHA256Update(SHA256_CTX *, const void *, size_t);
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extern void SHA256Final(void *, SHA256_CTX *);
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#ifdef _SHA2_IMPL
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/*
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* The following types/functions are all private to the implementation
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* of the SHA2 functions and must not be used by consumers of the interface
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*/
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/*
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* List of support mechanisms in this module.
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*
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* It is important to note that in the module, division or modulus calculations
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* are used on the enumerated type to determine which mechanism is being used;
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* therefore, changing the order or additional mechanisms should be done
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* carefully
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*/
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typedef enum sha2_mech_type {
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SHA256_MECH_INFO_TYPE, /* SUN_CKM_SHA256 */
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SHA256_HMAC_MECH_INFO_TYPE, /* SUN_CKM_SHA256_HMAC */
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SHA256_HMAC_GEN_MECH_INFO_TYPE, /* SUN_CKM_SHA256_HMAC_GENERAL */
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} sha2_mech_type_t;
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#endif /* _SHA2_IMPL */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_SHA2_H */
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