forked from len0rd/rockbox
Change HMAC-SHA1 implementation to the one taken from gnulib, which
contains a more clear copyright notice. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17054 a1c6a512-1295-4272-9138-f99709370657
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Maurus Cuelenaere
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3 changed files with 605 additions and 496 deletions
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@ -1,77 +1,123 @@
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/*
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* sha1.h
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*
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* Description:
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* This is the header file for code which implements the Secure
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* Hashing Algorithm 1 as defined in FIPS PUB 180-1 published
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* April 17, 1995.
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*
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* Many of the variable names in this code, 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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/* Taken from gnulib (http://savannah.gnu.org/projects/gnulib/) */
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/* Declarations of functions and data types used for SHA1 sum
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library functions.
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Copyright (C) 2000, 2001, 2003, 2005, 2006 Free Software Foundation, Inc.
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#ifndef _SHA1_H_
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#define _SHA1_H_
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef SHA1_H
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#define SHA1_H 1
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#include <stdio.h>
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#include <stdint.h>
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/*
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* If you do not have the ISO standard stdint.h header file, then you
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* must typdef the following:
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* name meaning
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* uint32_t unsigned 32 bit integer
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* uint8_t unsigned 8 bit integer (i.e., unsigned char)
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* int_least16_t integer of >= 16 bits
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*
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*/
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#ifndef _SHA_enum_
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#define _SHA_enum_
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enum
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/* Structure to save state of computation between the single steps. */
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struct sha1_ctx
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{
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shaSuccess = 0,
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shaNull, /* Null pointer parameter */
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shaInputTooLong, /* input data too long */
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shaStateError /* called Input after Result */
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uint32_t A;
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uint32_t B;
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uint32_t C;
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uint32_t D;
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uint32_t E;
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uint32_t total[2];
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uint32_t buflen;
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uint32_t buffer[32];
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};
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#endif
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#define SHA1HashSize 20
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/*
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* This structure will hold context information for the SHA-1
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* hashing operation
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*/
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typedef struct SHA1Context
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{
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uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest */
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uint32_t Length_Low; /* Message length in bits */
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uint32_t Length_High; /* Message length in bits */
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/* Initialize structure containing state of computation. */
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extern void sha1_init_ctx (struct sha1_ctx *ctx);
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/* Index into message block array */
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int_least16_t Message_Block_Index;
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uint8_t Message_Block[64]; /* 512-bit message blocks */
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/* Starting with the result of former calls of this function (or the
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initialization function update the context for the next LEN bytes
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starting at BUFFER.
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It is necessary that LEN is a multiple of 64!!! */
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extern void sha1_process_block (const void *buffer, size_t len,
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struct sha1_ctx *ctx);
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int Computed; /* Is the digest computed? */
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int Corrupted; /* Is the message digest corrupted? */
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} SHA1Context;
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/* Starting with the result of former calls of this function (or the
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initialization function update the context for the next LEN bytes
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starting at BUFFER.
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It is NOT required that LEN is a multiple of 64. */
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extern void sha1_process_bytes (const void *buffer, size_t len,
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struct sha1_ctx *ctx);
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/*
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* Function Prototypes
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*/
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/* Process the remaining bytes in the buffer and put result from CTX
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in first 20 bytes following RESBUF. The result is always in little
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endian byte order, so that a byte-wise output yields to the wanted
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ASCII representation of the message digest.
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int SHA1Reset( SHA1Context *);
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int SHA1Input( SHA1Context *,
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const uint8_t *,
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unsigned int);
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int SHA1Result( SHA1Context *,
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uint8_t Message_Digest[SHA1HashSize]);
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IMPORTANT: On some systems it is required that RESBUF be correctly
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aligned for a 32 bits value. */
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extern void *sha1_finish_ctx (struct sha1_ctx *ctx, void *resbuf);
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void hmac_sha(unsigned char* k, int lk,
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unsigned char* d, int ld,
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unsigned char* out, int t);
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/* Put result from CTX in first 20 bytes following RESBUF. The result is
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always in little endian byte order, so that a byte-wise output yields
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to the wanted ASCII representation of the message digest.
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IMPORTANT: On some systems it is required that RESBUF is correctly
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aligned for a 32 bits value. */
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extern void *sha1_read_ctx (const struct sha1_ctx *ctx, void *resbuf);
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/* Compute SHA1 message digest for bytes read from STREAM. The
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resulting message digest number will be written into the 20 bytes
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beginning at RESBLOCK. */
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extern int sha1_stream (FILE *stream, void *resblock);
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/* Compute SHA1 message digest for LEN bytes beginning at BUFFER. The
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result is always in little endian byte order, so that a byte-wise
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output yields to the wanted ASCII representation of the message
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digest. */
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extern void *sha1_buffer (const char *buffer, size_t len, void *resblock);
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#endif
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/* hmac.h -- hashed message authentication codes
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Copyright (C) 2005 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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/* Written by Simon Josefsson. */
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#ifndef HMAC_H
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#define HMAC_H 1
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#include <stddef.h>
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/* Compute Hashed Message Authentication Code with SHA-1, over BUFFER
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data of BUFLEN bytes using the KEY of KEYLEN bytes, writing the
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output to pre-allocated 20 byte minimum RESBUF buffer. Return 0 on
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success. */
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int
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hmac_sha1 (const void *key, size_t keylen,
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const void *in, size_t inlen, void *resbuf);
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#endif /* HMAC_H */
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