LXR uboot/include/u-boot/sha1.h

   1/**
   2 * \file sha1.h
   3 * based from http://xyssl.org/code/source/sha1/
   4 *  FIPS-180-1 compliant SHA-1 implementation
   5 *
   6 *  Copyright (C) 2003-2006  Christophe Devine
   7 *
   8 * SPDX-License-Identifier:     LGPL-2.1
   9 */
  10/*
  11 *  The SHA-1 standard was published by NIST in 1993.
  12 *
  13 *  http://www.itl.nist.gov/fipspubs/fip180-1.htm
  14 */
  15#ifndef _SHA1_H
  16#define _SHA1_H
  17
  18#ifdef __cplusplus
  19extern "C" {
  20#endif
  21
  22#define SHA1_SUM_POS    -0x20
  23#define SHA1_SUM_LEN    20
  24
  25/**
  26 * \brief          SHA-1 context structure
  27 */
  28typedef struct
  29{
  30    unsigned long total[2];     /*!< number of bytes processed  */
  31    unsigned long state[5];     /*!< intermediate digest state  */
  32    unsigned char buffer[64];   /*!< data block being processed */
  33}
  34sha1_context;
  35
  36/**
  37 * \brief          SHA-1 context setup
  38 *
  39 * \param ctx      SHA-1 context to be initialized
  40 */
  41void sha1_starts( sha1_context *ctx );
  42
  43/**
  44 * \brief          SHA-1 process buffer
  45 *
  46 * \param ctx      SHA-1 context
  47 * \param input    buffer holding the  data
  48 * \param ilen     length of the input data
  49 */
  50void sha1_update(sha1_context *ctx, const unsigned char *input,
  51                 unsigned int ilen);
  52
  53/**
  54 * \brief          SHA-1 final digest
  55 *
  56 * \param ctx      SHA-1 context
  57 * \param output   SHA-1 checksum result
  58 */
  59void sha1_finish( sha1_context *ctx, unsigned char output[20] );
  60
  61/**
  62 * \brief          Output = SHA-1( input buffer )
  63 *
  64 * \param input    buffer holding the  data
  65 * \param ilen     length of the input data
  66 * \param output   SHA-1 checksum result
  67 */
  68void sha1_csum(const unsigned char *input, unsigned int ilen,
  69                unsigned char *output);
  70
  71/**
  72 * \brief          Output = SHA-1( input buffer ), with watchdog triggering
  73 *
  74 * \param input    buffer holding the  data
  75 * \param ilen     length of the input data
  76 * \param output   SHA-1 checksum result
  77 * \param chunk_sz watchdog triggering period (in bytes of input processed)
  78 */
  79void sha1_csum_wd(const unsigned char *input, unsigned int ilen,
  80                unsigned char *output, unsigned int chunk_sz);
  81
  82/**
  83 * \brief          Output = HMAC-SHA-1( input buffer, hmac key )
  84 *
  85 * \param key      HMAC secret key
  86 * \param keylen   length of the HMAC key
  87 * \param input    buffer holding the  data
  88 * \param ilen     length of the input data
  89 * \param output   HMAC-SHA-1 result
  90 */
  91void sha1_hmac(const unsigned char *key, int keylen,
  92                const unsigned char *input, unsigned int ilen,
  93                unsigned char *output);
  94
  95/**
  96 * \brief          Checkup routine
  97 *
  98 * \return         0 if successful, or 1 if the test failed
  99 */
 100int sha1_self_test( void );
 101
 102#ifdef __cplusplus
 103}
 104#endif
 105
 106#endif /* sha1.h */
 107