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Annotation of src/include/sha2.h, Revision 1.7

1.7     ! djm         1: /*     $OpenBSD: sha2.h,v 1.6 2004/06/22 01:57:30 jfb Exp $    */
1.1       millert     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:
1.7     ! djm        53: /*** SHA-256/384/512 Context Structure *******************************/
        !            54: typedef struct _SHA2_CTX {
        !            55:        union {
        !            56:                u_int32_t       st32[8];
        !            57:                u_int64_t       st64[8];
        !            58:        } state;
1.1       millert    59:        u_int64_t       bitcount[2];
                     60:        u_int8_t        buffer[SHA512_BLOCK_LENGTH];
1.7     ! djm        61: } SHA2_CTX;
1.1       millert    62:
                     63: #include <sys/cdefs.h>
                     64:
                     65: __BEGIN_DECLS
1.7     ! djm        66: void SHA256Init(SHA2_CTX *);
        !            67: void SHA256Transform(u_int32_t state[8], const u_int8_t [SHA256_BLOCK_LENGTH]);
        !            68: void SHA256Update(SHA2_CTX *, const u_int8_t *, size_t)
1.2       millert    69:        __attribute__((__bounded__(__string__,2,3)));
1.7     ! djm        70: void SHA256Pad(SHA2_CTX *);
        !            71: void SHA256Final(u_int8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *)
1.2       millert    72:        __attribute__((__bounded__(__minbytes__,1,SHA256_DIGEST_LENGTH)));
1.7     ! djm        73: char *SHA256End(SHA2_CTX *, char *)
1.2       millert    74:        __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
1.7     ! djm        75: char *SHA256File(const char *, char *)
1.2       millert    76:        __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
1.7     ! djm        77: char *SHA256FileChunk(const char *, char *, off_t, off_t)
1.4       millert    78:        __attribute__((__bounded__(__minbytes__,2,SHA256_DIGEST_STRING_LENGTH)));
1.7     ! djm        79: char *SHA256Data(const u_int8_t *, size_t, char *)
1.2       millert    80:        __attribute__((__bounded__(__string__,1,2)))
                     81:        __attribute__((__bounded__(__minbytes__,3,SHA256_DIGEST_STRING_LENGTH)));
1.1       millert    82:
1.7     ! djm        83: void SHA384Init(SHA2_CTX *);
        !            84: void SHA384Transform(u_int64_t state[8], const u_int8_t [SHA384_BLOCK_LENGTH]);
        !            85: void SHA384Update(SHA2_CTX *, const u_int8_t *, size_t)
1.2       millert    86:        __attribute__((__bounded__(__string__,2,3)));
1.7     ! djm        87: void SHA384Pad(SHA2_CTX *);
        !            88: void SHA384Final(u_int8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *)
1.2       millert    89:        __attribute__((__bounded__(__minbytes__,1,SHA384_DIGEST_LENGTH)));
1.7     ! djm        90: char *SHA384End(SHA2_CTX *, char *)
1.2       millert    91:        __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
1.7     ! djm        92: char *SHA384File(const char *, char *)
1.2       millert    93:        __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
1.7     ! djm        94: char *SHA384FileChunk(const char *, char *, off_t, off_t)
1.4       millert    95:        __attribute__((__bounded__(__minbytes__,2,SHA384_DIGEST_STRING_LENGTH)));
1.7     ! djm        96: char *SHA384Data(const u_int8_t *, size_t, char *)
1.2       millert    97:        __attribute__((__bounded__(__string__,1,2)))
                     98:        __attribute__((__bounded__(__minbytes__,3,SHA384_DIGEST_STRING_LENGTH)));
1.1       millert    99:
1.7     ! djm       100: void SHA512Init(SHA2_CTX *);
        !           101: void SHA512Transform(u_int64_t state[8], const u_int8_t [SHA512_BLOCK_LENGTH]);
        !           102: void SHA512Update(SHA2_CTX *, const u_int8_t *, size_t)
1.2       millert   103:        __attribute__((__bounded__(__string__,2,3)));
1.7     ! djm       104: void SHA512Pad(SHA2_CTX *);
        !           105: void SHA512Final(u_int8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *)
1.2       millert   106:        __attribute__((__bounded__(__minbytes__,1,SHA512_DIGEST_LENGTH)));
1.7     ! djm       107: char *SHA512End(SHA2_CTX *, char *)
1.2       millert   108:        __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
1.7     ! djm       109: char *SHA512File(const char *, char *)
1.4       millert   110:        __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
1.7     ! djm       111: char *SHA512FileChunk(const char *, char *, off_t, off_t)
1.2       millert   112:        __attribute__((__bounded__(__minbytes__,2,SHA512_DIGEST_STRING_LENGTH)));
1.7     ! djm       113: char *SHA512Data(const u_int8_t *, size_t, char *)
1.2       millert   114:        __attribute__((__bounded__(__string__,1,2)))
                    115:        __attribute__((__bounded__(__minbytes__,3,SHA512_DIGEST_STRING_LENGTH)));
1.1       millert   116: __END_DECLS
                    117:
                    118: #endif /* _SHA2_H */