sha1.h
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上传日期:2022-05-23
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- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- /*
- This is the header file for code which implements the Secure
- Hashing Algorithm 1 as defined in FIPS PUB 180-1 published
- April 17, 1995.
- Many of the variable names in this code, especially the
- single character names, were used because those were the names
- used in the publication.
- Please read the file sha1.c for more information.
- Modified 2002 by Peter Zaitsev to better follow MySQL standards
- */
- enum sha_result_codes
- {
- SHA_SUCCESS = 0,
- SHA_NULL, /* Null pointer parameter */
- SHA_INPUT_TOO_LONG, /* input data too long */
- SHA_STATE_ERROR /* called Input after Result */
- };
- #define SHA1_HASH_SIZE 20 /* Hash size in bytes */
- /*
- This structure will hold context information for the SHA-1
- hashing operation
- */
- typedef struct SHA1_CONTEXT
- {
- ulonglong Length; /* Message length in bits */
- uint32 Intermediate_Hash[SHA1_HASH_SIZE/4]; /* Message Digest */
- int Computed; /* Is the digest computed? */
- int Corrupted; /* Is the message digest corrupted? */
- int16 Message_Block_Index; /* Index into message block array */
- uint8 Message_Block[64]; /* 512-bit message blocks */
- } SHA1_CONTEXT;
- /*
- Function Prototypes
- */
- C_MODE_START
- int sha1_reset( SHA1_CONTEXT* );
- int sha1_input( SHA1_CONTEXT*, const uint8 *, unsigned int );
- int sha1_result( SHA1_CONTEXT* , uint8 Message_Digest[SHA1_HASH_SIZE] );
- C_MODE_END