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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* sha1.h
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*
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* Copyright (C) 1998, 2009
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* Paul E. Jones <paulej@packetizer.com>
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* All Rights Reserved
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*
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*****************************************************************************
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* $Id: sha1.h 12 2009-06-22 19:34:25Z paulej $
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*****************************************************************************
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*
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* Description:
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* This class implements the Secure Hashing Standard as defined
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* in FIPS PUB 180-1 published April 17, 1995.
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*
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* Many of the variable names in the SHA1Context, especially the
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* single character names, were used because those were the names
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* used in the publication.
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*
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* Please read the file sha1.c for more information.
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*
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*/
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#ifndef _SHA1_H_
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#define _SHA1_H_
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/*
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* This structure will hold context information for the hashing
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* operation
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*/
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typedef struct SHA1Context
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{
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unsigned Message_Digest[5]; /* Message Digest (output) */
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unsigned Length_Low; /* Message length in bits */
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unsigned Length_High; /* Message length in bits */
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unsigned char Message_Block[64]; /* 512-bit message blocks */
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int Message_Block_Index; /* Index into message block array */
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int Computed; /* Is the digest computed? */
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int Corrupted; /* Is the message digest corruped? */
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} SHA1Context;
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/*
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* Function Prototypes
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*/
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void SHA1Reset(SHA1Context *);
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int SHA1Result(SHA1Context *);
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void SHA1Input( SHA1Context *,
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const unsigned char *,
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unsigned);
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#endif
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