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Annotation of sys/crypto/sha2.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: sha2.h,v 1.2 2004/04/28 23:11:57 millert Exp $        */
        !             2:
        !             3: /*
        !             4:  * FILE:       sha2.h
        !             5:  * AUTHOR:     Aaron D. Gifford <me@aarongifford.com>
        !             6:  *
        !             7:  * Copyright (c) 2000-2001, Aaron D. Gifford
        !             8:  * All rights reserved.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. Neither the name of the copyright holder nor the names of contributors
        !            19:  *    may be used to endorse or promote products derived from this software
        !            20:  *    without specific prior written permission.
        !            21:  *
        !            22:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
        !            23:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            24:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            25:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
        !            26:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            27:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            28:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            29:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            30:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            31:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            32:  * SUCH DAMAGE.
        !            33:  *
        !            34:  * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
        !            35:  */
        !            36:
        !            37: #ifndef _SHA2_H
        !            38: #define _SHA2_H
        !            39:
        !            40:
        !            41: /*** SHA-256/384/512 Various Length Definitions ***********************/
        !            42: #define SHA256_BLOCK_LENGTH            64
        !            43: #define SHA256_DIGEST_LENGTH           32
        !            44: #define SHA256_DIGEST_STRING_LENGTH    (SHA256_DIGEST_LENGTH * 2 + 1)
        !            45: #define SHA384_BLOCK_LENGTH            128
        !            46: #define SHA384_DIGEST_LENGTH           48
        !            47: #define SHA384_DIGEST_STRING_LENGTH    (SHA384_DIGEST_LENGTH * 2 + 1)
        !            48: #define SHA512_BLOCK_LENGTH            128
        !            49: #define SHA512_DIGEST_LENGTH           64
        !            50: #define SHA512_DIGEST_STRING_LENGTH    (SHA512_DIGEST_LENGTH * 2 + 1)
        !            51:
        !            52:
        !            53: /*** SHA-256/384/512 Context Structures *******************************/
        !            54: typedef struct _SHA256_CTX {
        !            55:        u_int32_t       state[8];
        !            56:        u_int64_t       bitcount;
        !            57:        u_int8_t        buffer[SHA256_BLOCK_LENGTH];
        !            58: } SHA256_CTX;
        !            59: typedef struct _SHA512_CTX {
        !            60:        u_int64_t       state[8];
        !            61:        u_int64_t       bitcount[2];
        !            62:        u_int8_t        buffer[SHA512_BLOCK_LENGTH];
        !            63: } SHA512_CTX;
        !            64:
        !            65: typedef SHA512_CTX SHA384_CTX;
        !            66:
        !            67: #include <sys/cdefs.h>
        !            68:
        !            69: __BEGIN_DECLS
        !            70: void SHA256_Init(SHA256_CTX *);
        !            71: void SHA256_Update(SHA256_CTX *, const u_int8_t *, size_t)
        !            72:        __attribute__((__bounded__(__string__,2,3)));
        !            73: void SHA256_Final(u_int8_t[SHA256_DIGEST_LENGTH], SHA256_CTX *)
        !            74:        __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
        !            75:
        !            76: void SHA384_Init(SHA384_CTX *);
        !            77: void SHA384_Update(SHA384_CTX *, const u_int8_t *, size_t)
        !            78:        __attribute__((__bounded__(__string__,2,3)));
        !            79: void SHA384_Final(u_int8_t[SHA384_DIGEST_LENGTH], SHA384_CTX *)
        !            80:        __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
        !            81:
        !            82: void SHA512_Init(SHA512_CTX *);
        !            83: void SHA512_Update(SHA512_CTX *, const u_int8_t *, size_t)
        !            84:        __attribute__((__bounded__(__string__,2,3)));
        !            85: void SHA512_Final(u_int8_t[SHA512_DIGEST_LENGTH], SHA512_CTX *)
        !            86:        __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
        !            87: __END_DECLS
        !            88:
        !            89: #endif /* _SHA2_H */