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coap_sha1_internal.h
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/*
* coap_sha1_internal.h
*
* Full Copyright Statement RFC3174
*
* =======================================================================
*
* Copyright (C) The Internet Society (2001). All Rights Reserved.
*
* This document and translations of it may be copied and furnished to
* others, and derivative works that comment on or otherwise explain it
* or assist in its implementation may be prepared, copied, published
* and distributed, in whole or in part, without restriction of any
* kind, provided that the above copyright notice and this paragraph are
* included on all such copies and derivative works. However, this
* document itself may not be modified in any way, such as by removing
* the copyright notice or references to the Internet Society or other
* Internet organizations, except as needed for the purpose of
* developing Internet standards in which case the procedures for
* copyrights defined in the Internet Standards process must be
* followed, or as required to translate it into languages other than
* English.
*
* The limited permissions granted above are perpetual and will not be
* revoked by the Internet Society or its successors or assigns.
*
* This document and the information contained herein is provided on an
* "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
* TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
* HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* =======================================================================
*
* Description:
* 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.
*
* Taken from https://datatracker.ietf.org/doc/html/rfc3174#section-7.1
* Reformatted as appropriate.
*
*/
#ifndef COAP_SHA1_INTERNAL_H_
#define COAP_SHA1_INTERNAL_H_
#include <stdint.h>
/*
* If you do not have the ISO standard stdint.h header file, then you
* must typdef the following:
* name meaning
* uint32_t unsigned 32 bit integer
* uint8_t unsigned 8 bit integer (i.e., unsigned char)
* int_least16_t integer of >= 16 bits
*
*/
#ifndef _SHA_enum_
#define _SHA_enum_
enum {
shaSuccess = 0,
shaNull, /* Null pointer parameter */
shaInputTooLong, /* input data too long */
shaStateError /* called Input after Result */
};
#endif
#define SHA1HashSize 20
/*
* This structure will hold context information for the SHA-1
* hashing operation
*/
typedef struct SHA1Context {
uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest */
uint32_t Length_Low; /* Message length in bits */
uint32_t Length_High; /* Message length in bits */
/* Index into message block array */
int_least16_t Message_Block_Index;
uint8_t Message_Block[64]; /* 512-bit message blocks */
int Computed; /* Is the digest computed? */
int Corrupted; /* Is the message digest corrupted? */
} SHA1Context;
/*
* Function Prototypes
*/
int SHA1Reset(SHA1Context *);
int SHA1Input(SHA1Context *,
const uint8_t *,
unsigned int);
int SHA1Result(SHA1Context *,
uint8_t Message_Digest[SHA1HashSize]);
#endif /* COAP_SHA1_INTERNAL_H_ */
SHA1Result
int SHA1Result(SHA1Context *, uint8_t Message_Digest[SHA1HashSize])
shaInputTooLong
@ shaInputTooLong
Definition coap_sha1_internal.h:76
shaSuccess
@ shaSuccess
Definition coap_sha1_internal.h:74
shaNull
@ shaNull
Definition coap_sha1_internal.h:75
shaStateError
@ shaStateError
Definition coap_sha1_internal.h:77
SHA1Reset
int SHA1Reset(SHA1Context *)
SHA1Input
int SHA1Input(SHA1Context *, const uint8_t *, unsigned int)
SHA1HashSize
#define SHA1HashSize
Definition coap_sha1_internal.h:80
SHA1Context
Definition coap_sha1_internal.h:86
SHA1Context::Length_High
uint32_t Length_High
Definition coap_sha1_internal.h:90
SHA1Context::Computed
int Computed
Definition coap_sha1_internal.h:96
SHA1Context::Intermediate_Hash
uint32_t Intermediate_Hash[SHA1HashSize/4]
Definition coap_sha1_internal.h:87
SHA1Context::Message_Block
uint8_t Message_Block[64]
Definition coap_sha1_internal.h:94
SHA1Context::Length_Low
uint32_t Length_Low
Definition coap_sha1_internal.h:89
SHA1Context::Corrupted
int Corrupted
Definition coap_sha1_internal.h:97
SHA1Context::Message_Block_Index
int_least16_t Message_Block_Index
Definition coap_sha1_internal.h:93