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A lot of changes...

Browse source 
.. ntag simulation stuff from @marshmellows branch "ntag/sim"
.. hf mf mifare fixes from @pwpivi.
.. hw status command
.. speedtest function from @pwpivi
.. Viking Functionalities,   (not a proper DEMOD, but a start)
.. GetCountUS  better precision from @pwpivi
.. bin2hex,  hex2bin  from @holiman

...
starting with getting the T55x7 CONFIGURATION_BLOCK for different clone situations. Ripped from Adam Lauries RFidler,   nothing working or finished..
...
Started working with the T55x7 read command with password actually performs a write block...  See Issue #136  https://github.com/Proxmark/proxmark3/issues/136    Not solved yet.

...
Started add SHA256..   not working yet..
This commit is contained in:
iceman1001 2015-10-04 18:01:33 +02:00
commit 0de8e3874d
41 changed files with 2222 additions and 237 deletions
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46
common/cmd.c
View file

@ -50,30 +50,32 @@ bool cmd_receive(UsbCommand* cmd) {
}
bool cmd_send(uint32_t cmd, uint32_t arg0, uint32_t arg1, uint32_t arg2, void* data, size_t len) {
UsbCommand txcmd;
for (size_t i=0; i<sizeof(UsbCommand); i++) {
((byte_t*)&txcmd)[i] = 0x00;
}
// Compose the outgoing command frame
txcmd.cmd = cmd;
txcmd.arg[0] = arg0;
txcmd.arg[1] = arg1;
txcmd.arg[2] = arg2;
UsbCommand txcmd;
// Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
if (data && len) {
len = MIN(len,USB_CMD_DATA_SIZE);
for (size_t i=0; i<len; i++) {
txcmd.d.asBytes[i] = ((byte_t*)data)[i];
}
}
// Send frame and make sure all bytes are transmitted
if (usb_write((byte_t*)&txcmd,sizeof(UsbCommand)) != 0) return false;
return true;
// 0x00 the whole command.
for (size_t i=0; i < sizeof(UsbCommand); i++)
((byte_t*)&txcmd)[i] = 0x00;
// Compose the outgoing command frame
txcmd.cmd = cmd;
txcmd.arg[0] = arg0;
txcmd.arg[1] = arg1;
txcmd.arg[2] = arg2;
// Add the (optional) content to the frame, with a maximum size of USB_CMD_DATA_SIZE
if (data && len) {
len = MIN(len, USB_CMD_DATA_SIZE);
for (size_t i=0; i<len; i++) {
txcmd.d.asBytes[i] = ((byte_t*)data)[i];
}
}
// Send frame and make sure all bytes are transmitted
if ( usb_write( (byte_t*)&txcmd, sizeof(UsbCommand)) != 0)
return false;
return true;
}

533
common/hmac_drbg.c Normal file
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@ -0,0 +1,533 @@
/*
* HMAC_DRBG implementation (NIST SP 800-90)
*
* Copyright (C) 2014, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* The NIST SP 800-90A DRBGs are described in the following publication.
* http://csrc.nist.gov/publications/nistpubs/800-90A/SP800-90A.pdf
* References below are based on rev. 1 (January 2012).
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_HMAC_DRBG_C)
#include "mbedtls/hmac_drbg.h"
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PLATFORM_C */
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
/*
* HMAC_DRBG context initialization
*/
void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
/*
* HMAC_DRBG update, using optional additional data (10.1.2.2)
*/
void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t add_len )
{
size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
unsigned char rounds = ( additional != NULL && add_len != 0 ) ? 2 : 1;
unsigned char sep[1];
unsigned char K[MBEDTLS_MD_MAX_SIZE];
for( sep[0] = 0; sep[0] < rounds; sep[0]++ )
{
/* Step 1 or 4 */
mbedtls_md_hmac_reset( &ctx->md_ctx );
mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
mbedtls_md_hmac_update( &ctx->md_ctx, sep, 1 );
if( rounds == 2 )
mbedtls_md_hmac_update( &ctx->md_ctx, additional, add_len );
mbedtls_md_hmac_finish( &ctx->md_ctx, K );
/* Step 2 or 5 */
mbedtls_md_hmac_starts( &ctx->md_ctx, K, md_len );
mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V );
}
}
/*
* Simplified HMAC_DRBG initialisation (for use with deterministic ECDSA)
*/
int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
const unsigned char *data, size_t data_len )
{
int ret;
if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
return( ret );
/*
* Set initial working state.
* Use the V memory location, which is currently all 0, to initialize the
* MD context with an all-zero key. Then set V to its initial value.
*/
mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, mbedtls_md_get_size( md_info ) );
memset( ctx->V, 0x01, mbedtls_md_get_size( md_info ) );
mbedtls_hmac_drbg_update( ctx, data, data_len );
return( 0 );
}
/*
* HMAC_DRBG reseeding: 10.1.2.4 (arabic) + 9.2 (Roman)
*/
int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t len )
{
unsigned char seed[MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT];
size_t seedlen;
/* III. Check input length */
if( len > MBEDTLS_HMAC_DRBG_MAX_INPUT ||
ctx->entropy_len + len > MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT )
{
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
}
memset( seed, 0, MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT );
/* IV. Gather entropy_len bytes of entropy for the seed */
if( ctx->f_entropy( ctx->p_entropy, seed, ctx->entropy_len ) != 0 )
return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED );
seedlen = ctx->entropy_len;
/* 1. Concatenate entropy and additional data if any */
if( additional != NULL && len != 0 )
{
memcpy( seed + seedlen, additional, len );
seedlen += len;
}
/* 2. Update state */
mbedtls_hmac_drbg_update( ctx, seed, seedlen );
/* 3. Reset reseed_counter */
ctx->reseed_counter = 1;
/* 4. Done */
return( 0 );
}
/*
* HMAC_DRBG initialisation (10.1.2.3 + 9.1)
*/
int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
int (*f_entropy)(void *, unsigned char *, size_t),
void *p_entropy,
const unsigned char *custom,
size_t len )
{
int ret;
size_t entropy_len, md_size;
if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
return( ret );
md_size = mbedtls_md_get_size( md_info );
/*
* Set initial working state.
* Use the V memory location, which is currently all 0, to initialize the
* MD context with an all-zero key. Then set V to its initial value.
*/
mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, md_size );
memset( ctx->V, 0x01, md_size );
ctx->f_entropy = f_entropy;
ctx->p_entropy = p_entropy;
ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL;
/*
* See SP800-57 5.6.1 (p. 65-66) for the security strength provided by
* each hash function, then according to SP800-90A rev1 10.1 table 2,
* min_entropy_len (in bits) is security_strength.
*
* (This also matches the sizes used in the NIST test vectors.)
*/
entropy_len = md_size <= 20 ? 16 : /* 160-bits hash -> 128 bits */
md_size <= 28 ? 24 : /* 224-bits hash -> 192 bits */
32; /* better (256+) -> 256 bits */
/*
* For initialisation, use more entropy to emulate a nonce
* (Again, matches test vectors.)
*/
ctx->entropy_len = entropy_len * 3 / 2;
if( ( ret = mbedtls_hmac_drbg_reseed( ctx, custom, len ) ) != 0 )
return( ret );
ctx->entropy_len = entropy_len;
return( 0 );
}
/*
* Set prediction resistance
*/
void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx,
int resistance )
{
ctx->prediction_resistance = resistance;
}
/*
* Set entropy length grabbed for reseeds
*/
void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, size_t len )
{
ctx->entropy_len = len;
}
/*
* Set reseed interval
*/
void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, int interval )
{
ctx->reseed_interval = interval;
}
/*
* HMAC_DRBG random function with optional additional data:
* 10.1.2.5 (arabic) + 9.3 (Roman)
*/
int mbedtls_hmac_drbg_random_with_add( void *p_rng,
unsigned char *output, size_t out_len,
const unsigned char *additional, size_t add_len )
{
int ret;
mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
size_t left = out_len;
unsigned char *out = output;
/* II. Check request length */
if( out_len > MBEDTLS_HMAC_DRBG_MAX_REQUEST )
return( MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG );
/* III. Check input length */
if( add_len > MBEDTLS_HMAC_DRBG_MAX_INPUT )
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
/* 1. (aka VII and IX) Check reseed counter and PR */
if( ctx->f_entropy != NULL && /* For no-reseeding instances */
( ctx->prediction_resistance == MBEDTLS_HMAC_DRBG_PR_ON ||
ctx->reseed_counter > ctx->reseed_interval ) )
{
if( ( ret = mbedtls_hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 )
return( ret );
add_len = 0; /* VII.4 */
}
/* 2. Use additional data if any */
if( additional != NULL && add_len != 0 )
mbedtls_hmac_drbg_update( ctx, additional, add_len );
/* 3, 4, 5. Generate bytes */
while( left != 0 )
{
size_t use_len = left > md_len ? md_len : left;
mbedtls_md_hmac_reset( &ctx->md_ctx );
mbedtls_md_hmac_update( &ctx->md_ctx, ctx->V, md_len );
mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V );
memcpy( out, ctx->V, use_len );
out += use_len;
left -= use_len;
}
/* 6. Update */
mbedtls_hmac_drbg_update( ctx, additional, add_len );
/* 7. Update reseed counter */
ctx->reseed_counter++;
/* 8. Done */
return( 0 );
}
/*
* HMAC_DRBG random function
*/
int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len )
{
int ret;
mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = mbedtls_hmac_drbg_random_with_add( ctx, output, out_len, NULL, 0 );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Free an HMAC_DRBG context
*/
void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx )
{
if( ctx == NULL )
return;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_md_free( &ctx->md_ctx );
mbedtls_zeroize( ctx, sizeof( mbedtls_hmac_drbg_context ) );
}
#if defined(MBEDTLS_FS_IO)
int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
{
int ret;
FILE *f;
unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
if( ( f = fopen( path, "wb" ) ) == NULL )
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
if( ( ret = mbedtls_hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 )
goto exit;
if( fwrite( buf, 1, sizeof( buf ), f ) != sizeof( buf ) )
{
ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR;
goto exit;
}
ret = 0;
exit:
fclose( f );
return( ret );
}
int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
{
FILE *f;
size_t n;
unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
fseek( f, 0, SEEK_END );
n = (size_t) ftell( f );
fseek( f, 0, SEEK_SET );
if( n > MBEDTLS_HMAC_DRBG_MAX_INPUT )
{
fclose( f );
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
}
if( fread( buf, 1, n, f ) != n )
{
fclose( f );
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
}
fclose( f );
mbedtls_hmac_drbg_update( ctx, buf, n );
return( mbedtls_hmac_drbg_write_seed_file( ctx, path ) );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_SHA1_C)
/* Dummy checkup routine */
int mbedtls_hmac_drbg_self_test( int verbose )
{
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#else
#define OUTPUT_LEN 80
/* From a NIST PR=true test vector */
static const unsigned char entropy_pr[] = {
0xa0, 0xc9, 0xab, 0x58, 0xf1, 0xe2, 0xe5, 0xa4, 0xde, 0x3e, 0xbd, 0x4f,
0xf7, 0x3e, 0x9c, 0x5b, 0x64, 0xef, 0xd8, 0xca, 0x02, 0x8c, 0xf8, 0x11,
0x48, 0xa5, 0x84, 0xfe, 0x69, 0xab, 0x5a, 0xee, 0x42, 0xaa, 0x4d, 0x42,
0x17, 0x60, 0x99, 0xd4, 0x5e, 0x13, 0x97, 0xdc, 0x40, 0x4d, 0x86, 0xa3,
0x7b, 0xf5, 0x59, 0x54, 0x75, 0x69, 0x51, 0xe4 };
static const unsigned char result_pr[OUTPUT_LEN] = {
0x9a, 0x00, 0xa2, 0xd0, 0x0e, 0xd5, 0x9b, 0xfe, 0x31, 0xec, 0xb1, 0x39,
0x9b, 0x60, 0x81, 0x48, 0xd1, 0x96, 0x9d, 0x25, 0x0d, 0x3c, 0x1e, 0x94,
0x10, 0x10, 0x98, 0x12, 0x93, 0x25, 0xca, 0xb8, 0xfc, 0xcc, 0x2d, 0x54,
0x73, 0x19, 0x70, 0xc0, 0x10, 0x7a, 0xa4, 0x89, 0x25, 0x19, 0x95, 0x5e,
0x4b, 0xc6, 0x00, 0x1d, 0x7f, 0x4e, 0x6a, 0x2b, 0xf8, 0xa3, 0x01, 0xab,
0x46, 0x05, 0x5c, 0x09, 0xa6, 0x71, 0x88, 0xf1, 0xa7, 0x40, 0xee, 0xf3,
0xe1, 0x5c, 0x02, 0x9b, 0x44, 0xaf, 0x03, 0x44 };
/* From a NIST PR=false test vector */
static const unsigned char entropy_nopr[] = {
0x79, 0x34, 0x9b, 0xbf, 0x7c, 0xdd, 0xa5, 0x79, 0x95, 0x57, 0x86, 0x66,
0x21, 0xc9, 0x13, 0x83, 0x11, 0x46, 0x73, 0x3a, 0xbf, 0x8c, 0x35, 0xc8,
0xc7, 0x21, 0x5b, 0x5b, 0x96, 0xc4, 0x8e, 0x9b, 0x33, 0x8c, 0x74, 0xe3,
0xe9, 0x9d, 0xfe, 0xdf };
static const unsigned char result_nopr[OUTPUT_LEN] = {
0xc6, 0xa1, 0x6a, 0xb8, 0xd4, 0x20, 0x70, 0x6f, 0x0f, 0x34, 0xab, 0x7f,
0xec, 0x5a, 0xdc, 0xa9, 0xd8, 0xca, 0x3a, 0x13, 0x3e, 0x15, 0x9c, 0xa6,
0xac, 0x43, 0xc6, 0xf8, 0xa2, 0xbe, 0x22, 0x83, 0x4a, 0x4c, 0x0a, 0x0a,
0xff, 0xb1, 0x0d, 0x71, 0x94, 0xf1, 0xc1, 0xa5, 0xcf, 0x73, 0x22, 0xec,
0x1a, 0xe0, 0x96, 0x4e, 0xd4, 0xbf, 0x12, 0x27, 0x46, 0xe0, 0x87, 0xfd,
0xb5, 0xb3, 0xe9, 0x1b, 0x34, 0x93, 0xd5, 0xbb, 0x98, 0xfa, 0xed, 0x49,
0xe8, 0x5f, 0x13, 0x0f, 0xc8, 0xa4, 0x59, 0xb7 };
/* "Entropy" from buffer */
static size_t test_offset;
static int hmac_drbg_self_test_entropy( void *data,
unsigned char *buf, size_t len )
{
const unsigned char *p = data;
memcpy( buf, p + test_offset, len );
test_offset += len;
return( 0 );
}
#define CHK( c ) if( (c) != 0 ) \
{ \
if( verbose != 0 ) \
mbedtls_printf( "failed\n" ); \
return( 1 ); \
}
/*
* Checkup routine for HMAC_DRBG with SHA-1
*/
int mbedtls_hmac_drbg_self_test( int verbose )
{
mbedtls_hmac_drbg_context ctx;
unsigned char buf[OUTPUT_LEN];
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
mbedtls_hmac_drbg_init( &ctx );
/*
* PR = True
*/
if( verbose != 0 )
mbedtls_printf( " HMAC_DRBG (PR = True) : " );
test_offset = 0;
CHK( mbedtls_hmac_drbg_seed( &ctx, md_info,
hmac_drbg_self_test_entropy, (void *) entropy_pr,
NULL, 0 ) );
mbedtls_hmac_drbg_set_prediction_resistance( &ctx, MBEDTLS_HMAC_DRBG_PR_ON );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( memcmp( buf, result_pr, OUTPUT_LEN ) );
mbedtls_hmac_drbg_free( &ctx );
mbedtls_hmac_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
/*
* PR = False
*/
if( verbose != 0 )
mbedtls_printf( " HMAC_DRBG (PR = False) : " );
mbedtls_hmac_drbg_init( &ctx );
test_offset = 0;
CHK( mbedtls_hmac_drbg_seed( &ctx, md_info,
hmac_drbg_self_test_entropy, (void *) entropy_nopr,
NULL, 0 ) );
CHK( mbedtls_hmac_drbg_reseed( &ctx, NULL, 0 ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( memcmp( buf, result_nopr, OUTPUT_LEN ) );
mbedtls_hmac_drbg_free( &ctx );
mbedtls_hmac_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_HMAC_DRBG_C */

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common/hmac_drbg.h Normal file
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/**
* \file hmac_drbg.h
*
* \brief HMAC_DRBG (NIST SP 800-90A)
*
* Copyright (C) 2014, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MBEDTLS_HMAC_DRBG_H
#define MBEDTLS_HMAC_DRBG_H
#include "md.h"
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
/*
* Error codes
*/
#define MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG -0x0003 /**< Too many random requested in single call. */
#define MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG -0x0005 /**< Input too large (Entropy + additional). */
#define MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR -0x0007 /**< Read/write error in file. */
#define MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED -0x0009 /**< The entropy source failed. */
/**
* \name SECTION: Module settings
*
* The configuration options you can set for this module are in this section.
* Either change them in config.h or define them on the compiler command line.
* \{
*/
#if !defined(MBEDTLS_HMAC_DRBG_RESEED_INTERVAL)
#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 /**< Interval before reseed is performed by default */
#endif
#if !defined(MBEDTLS_HMAC_DRBG_MAX_INPUT)
#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 /**< Maximum number of additional input bytes */
#endif
#if !defined(MBEDTLS_HMAC_DRBG_MAX_REQUEST)
#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 /**< Maximum number of requested bytes per call */
#endif
#if !defined(MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT)
#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 /**< Maximum size of (re)seed buffer */
#endif
/* \} name SECTION: Module settings */
#define MBEDTLS_HMAC_DRBG_PR_OFF 0 /**< No prediction resistance */
#define MBEDTLS_HMAC_DRBG_PR_ON 1 /**< Prediction resistance enabled */
#ifdef __cplusplus
extern "C" {
#endif
/**
* HMAC_DRBG context.
*/
typedef struct
{
/* Working state: the key K is not stored explicitely,
* but is implied by the HMAC context */
mbedtls_md_context_t md_ctx; /*!< HMAC context (inc. K) */
unsigned char V[MBEDTLS_MD_MAX_SIZE]; /*!< V in the spec */
int reseed_counter; /*!< reseed counter */
/* Administrative state */
size_t entropy_len; /*!< entropy bytes grabbed on each (re)seed */
int prediction_resistance; /*!< enable prediction resistance (Automatic
reseed before every random generation) */
int reseed_interval; /*!< reseed interval */
/* Callbacks */
int (*f_entropy)(void *, unsigned char *, size_t); /*!< entropy function */
void *p_entropy; /*!< context for the entropy function */
#if defined(MBEDTLS_THREADING_C)
mbedtls_threading_mutex_t mutex;
#endif
} mbedtls_hmac_drbg_context;
/**
* \brief HMAC_DRBG context initialization
* Makes the context ready for mbetls_hmac_drbg_seed(),
* mbedtls_hmac_drbg_seed_buf() or
* mbedtls_hmac_drbg_free().
*
* \param ctx HMAC_DRBG context to be initialized
*/
void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx );
/**
* \brief HMAC_DRBG initial seeding
* Seed and setup entropy source for future reseeds.
*
* \param ctx HMAC_DRBG context to be seeded
* \param md_info MD algorithm to use for HMAC_DRBG
* \param f_entropy Entropy callback (p_entropy, buffer to fill, buffer
* length)
* \param p_entropy Entropy context
* \param custom Personalization data (Device specific identifiers)
* (Can be NULL)
* \param len Length of personalization data
*
* \note The "security strength" as defined by NIST is set to:
* 128 bits if md_alg is SHA-1,
* 192 bits if md_alg is SHA-224,
* 256 bits if md_alg is SHA-256 or higher.
* Note that SHA-256 is just as efficient as SHA-224.
*
* \return 0 if successful, or
* MBEDTLS_ERR_MD_BAD_INPUT_DATA, or
* MBEDTLS_ERR_MD_ALLOC_FAILED, or
* MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED.
*/
int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
int (*f_entropy)(void *, unsigned char *, size_t),
void *p_entropy,
const unsigned char *custom,
size_t len );
/**
* \brief Initilisation of simpified HMAC_DRBG (never reseeds).
* (For use with deterministic ECDSA.)
*
* \param ctx HMAC_DRBG context to be initialised
* \param md_info MD algorithm to use for HMAC_DRBG
* \param data Concatenation of entropy string and additional data
* \param data_len Length of data in bytes
*
* \return 0 if successful, or
* MBEDTLS_ERR_MD_BAD_INPUT_DATA, or
* MBEDTLS_ERR_MD_ALLOC_FAILED.
*/
int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
const unsigned char *data, size_t data_len );
/**
* \brief Enable / disable prediction resistance (Default: Off)
*
* Note: If enabled, entropy is used for ctx->entropy_len before each call!
* Only use this if you have ample supply of good entropy!
*
* \param ctx HMAC_DRBG context
* \param resistance MBEDTLS_HMAC_DRBG_PR_ON or MBEDTLS_HMAC_DRBG_PR_OFF
*/
void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx,
int resistance );
/**
* \brief Set the amount of entropy grabbed on each reseed
* (Default: given by the security strength, which
* depends on the hash used, see \c mbedtls_hmac_drbg_init() )
*
* \param ctx HMAC_DRBG context
* \param len Amount of entropy to grab, in bytes
*/
void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx,
size_t len );
/**
* \brief Set the reseed interval
* (Default: MBEDTLS_HMAC_DRBG_RESEED_INTERVAL)
*
* \param ctx HMAC_DRBG context
* \param interval Reseed interval
*/
void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx,
int interval );
/**
* \brief HMAC_DRBG update state
*
* \param ctx HMAC_DRBG context
* \param additional Additional data to update state with, or NULL
* \param add_len Length of additional data, or 0
*
* \note Additional data is optional, pass NULL and 0 as second
* third argument if no additional data is being used.
*/
void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t add_len );
/**
* \brief HMAC_DRBG reseeding (extracts data from entropy source)
*
* \param ctx HMAC_DRBG context
* \param additional Additional data to add to state (Can be NULL)
* \param len Length of additional data
*
* \return 0 if successful, or
* MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED
*/
int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t len );
/**
* \brief HMAC_DRBG generate random with additional update input
*
* Note: Automatically reseeds if reseed_counter is reached or PR is enabled.
*
* \param p_rng HMAC_DRBG context
* \param output Buffer to fill
* \param output_len Length of the buffer
* \param additional Additional data to update with (can be NULL)
* \param add_len Length of additional data (can be 0)
*
* \return 0 if successful, or
* MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED, or
* MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG, or
* MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG.
*/
int mbedtls_hmac_drbg_random_with_add( void *p_rng,
unsigned char *output, size_t output_len,
const unsigned char *additional,
size_t add_len );
/**
* \brief HMAC_DRBG generate random
*
* Note: Automatically reseeds if reseed_counter is reached or PR is enabled.
*
* \param p_rng HMAC_DRBG context
* \param output Buffer to fill
* \param out_len Length of the buffer
*
* \return 0 if successful, or
* MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED, or
* MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG
*/
int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len );
/**
* \brief Free an HMAC_DRBG context
*
* \param ctx HMAC_DRBG context to free.
*/
void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx );
#if defined(MBEDTLS_FS_IO)
/**
* \brief Write a seed file
*
* \param ctx HMAC_DRBG context
* \param path Name of the file
*
* \return 0 if successful, 1 on file error, or
* MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED
*/
int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path );
/**
* \brief Read and update a seed file. Seed is added to this
* instance
*
* \param ctx HMAC_DRBG context
* \param path Name of the file
*
* \return 0 if successful, 1 on file error,
* MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED or
* MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG
*/
int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path );
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
/**
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*/
int mbedtls_hmac_drbg_self_test( int verbose );
#endif
#ifdef __cplusplus
}
#endif
#endif /* hmac_drbg.h */

27
common/lfdemod.c
View file

@ -1482,3 +1482,30 @@ int pskRawDemod(uint8_t dest[], size_t *size, int *clock, int *invert)
*size = numBits;
return errCnt;
}
// on successful return 1 otherwise return 0
int VikingDecode(uint8_t *BitStream,
size_t size,
size_t *startIdx,
uint8_t *id_bits,
size_t id_bits_size)
{
//no arguments needed - built this way in case we want this to be a direct call from "data " cmds in the future
// otherwise could be a void with no arguments
//set defaults
uint32_t i = 0;
uint32_t lastcheckindex = size - (id_bits_size * 2);
int found = 0;
while (i < lastcheckindex)
{
if (memcmp(BitStream + i,id_bits,id_bits_size) == 0)
{
*startIdx = i;
found = 1;
break;
}
i++;
}
return found;
}

1
common/lfdemod.h
View file

@ -49,5 +49,6 @@ int IOdemodFSK(uint8_t *dest, size_t size);
int indala26decode(uint8_t *bitStream, size_t *size, uint8_t *invert);
int PyramiddemodFSK(uint8_t *dest, size_t *size);
int ParadoxdemodFSK(uint8_t *dest, size_t *size, uint32_t *hi2, uint32_t *hi, uint32_t *lo);
int VikingDecode(uint8_t *BitStream, size_t size, size_t *startIdx,uint8_t *id_bit,size_t id_bits_size);
#endif

446
common/sha256.c Normal file
View file

@ -0,0 +1,446 @@
/*
* FIPS-180-2 compliant SHA-256 implementation
*
* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* The SHA-256 Secure Hash Standard was published by NIST in 2002.
*
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
//#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SHA256_C)
#include "mbedtls/sha256.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;
}
#if !defined(MBEDTLS_SHA256_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
do { \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
} while( 0 )
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
do { \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
} while( 0 )
#endif
void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
}
void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
}
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src )
{
*dst = *src;
}
/*
* SHA-256 context setup
*/
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is224 == 0 )
{
/* SHA-256 */
ctx->state[0] = 0x6A09E667;
ctx->state[1] = 0xBB67AE85;
ctx->state[2] = 0x3C6EF372;
ctx->state[3] = 0xA54FF53A;
ctx->state[4] = 0x510E527F;
ctx->state[5] = 0x9B05688C;
ctx->state[6] = 0x1F83D9AB;
ctx->state[7] = 0x5BE0CD19;
}
else
{
/* SHA-224 */
ctx->state[0] = 0xC1059ED8;
ctx->state[1] = 0x367CD507;
ctx->state[2] = 0x3070DD17;
ctx->state[3] = 0xF70E5939;
ctx->state[4] = 0xFFC00B31;
ctx->state[5] = 0x68581511;
ctx->state[6] = 0x64F98FA7;
ctx->state[7] = 0xBEFA4FA4;
}
ctx->is224 = is224;
}
#if !defined(MBEDTLS_SHA256_PROCESS_ALT)
static const uint32_t K[] =
{
0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2,
};
#define SHR(x,n) ((x & 0xFFFFFFFF) >> n)
#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
#define F0(x,y,z) ((x & y) | (z & (x | y)))
#define F1(x,y,z) (z ^ (x & (y ^ z)))
#define R(t) \
( \
W[t] = S1(W[t - 2]) + W[t - 7] + \
S0(W[t - 15]) + W[t - 16] \
)
#define P(a,b,c,d,e,f,g,h,x,K) \
{ \
temp1 = h + S3(e) + F1(e,f,g) + K + x; \
temp2 = S2(a) + F0(a,b,c); \
d += temp1; h = temp1 + temp2; \
}
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] )
{
uint32_t temp1, temp2, W[64];
uint32_t A[8];
unsigned int i;
for( i = 0; i < 8; i++ )
A[i] = ctx->state[i];
#if defined(MBEDTLS_SHA256_SMALLER)
for( i = 0; i < 64; i++ )
{
if( i < 16 )
GET_UINT32_BE( W[i], data, 4 * i );
else
R( i );
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] );
temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3];
A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1;
}
#else /* MBEDTLS_SHA256_SMALLER */
for( i = 0; i < 16; i++ )
GET_UINT32_BE( W[i], data, 4 * i );
for( i = 0; i < 16; i += 8 )
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i+0], K[i+0] );
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i+1], K[i+1] );
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i+2], K[i+2] );
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i+3], K[i+3] );
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i+4], K[i+4] );
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i+5], K[i+5] );
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i+6], K[i+6] );
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i+7], K[i+7] );
}
for( i = 16; i < 64; i += 8 )
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], R(i+0), K[i+0] );
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], R(i+1), K[i+1] );
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], R(i+2), K[i+2] );
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], R(i+3), K[i+3] );
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], R(i+4), K[i+4] );
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], R(i+5), K[i+5] );
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], R(i+6), K[i+6] );
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], R(i+7), K[i+7] );
}
#endif /* MBEDTLS_SHA256_SMALLER */
for( i = 0; i < 8; i++ )
ctx->state[i] += A[i];
}
#endif /* !MBEDTLS_SHA256_PROCESS_ALT */
/*
* SHA-256 process buffer
*/
void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
size_t ilen )
{
size_t fill;
uint32_t left;
if( ilen == 0 )
return;
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
mbedtls_sha256_process( ctx, ctx->buffer );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
mbedtls_sha256_process( ctx, input );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
}
static const unsigned char sha256_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/*
* SHA-256 final digest
*/
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] )
{
uint32_t last, padn;
uint32_t high, low;
unsigned char msglen[8];
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_BE( high, msglen, 0 );
PUT_UINT32_BE( low, msglen, 4 );
last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
mbedtls_sha256_update( ctx, sha256_padding, padn );
mbedtls_sha256_update( ctx, msglen, 8 );
PUT_UINT32_BE( ctx->state[0], output, 0 );
PUT_UINT32_BE( ctx->state[1], output, 4 );
PUT_UINT32_BE( ctx->state[2], output, 8 );
PUT_UINT32_BE( ctx->state[3], output, 12 );
PUT_UINT32_BE( ctx->state[4], output, 16 );
PUT_UINT32_BE( ctx->state[5], output, 20 );
PUT_UINT32_BE( ctx->state[6], output, 24 );
if( ctx->is224 == 0 )
PUT_UINT32_BE( ctx->state[7], output, 28 );
}
#endif /* !MBEDTLS_SHA256_ALT */
/*
* output = SHA-256( input buffer )
*/
void mbedtls_sha256( const unsigned char *input, size_t ilen,
unsigned char output[32], int is224 )
{
mbedtls_sha256_context ctx;
mbedtls_sha256_init( &ctx );
mbedtls_sha256_starts( &ctx, is224 );
mbedtls_sha256_update( &ctx, input, ilen );
mbedtls_sha256_finish( &ctx, output );
mbedtls_sha256_free( &ctx );
}
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-2 test vectors
*/
static const unsigned char sha256_test_buf[3][57] =
{
{ "abc" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "" }
};
static const int sha256_test_buflen[3] =
{
3, 56, 1000
};
static const unsigned char sha256_test_sum[6][32] =
{
/*
* SHA-224 test vectors
*/
{ 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22,
0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3,
0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7,
0xE3, 0x6C, 0x9D, 0xA7 },
{ 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC,
0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50,
0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19,
0x52, 0x52, 0x25, 0x25 },
{ 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8,
0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B,
0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE,
0x4E, 0xE7, 0xAD, 0x67 },
/*
* SHA-256 test vectors
*/
{ 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
{ 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
{ 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
};
/*
* Checkup routine
*/
int mbedtls_sha256_self_test( int verbose )
{
int i, j, k, buflen, ret = 0;
unsigned char buf[1024];
unsigned char sha256sum[32];
mbedtls_sha256_context ctx;
mbedtls_sha256_init( &ctx );
for( i = 0; i < 6; i++ )
{
j = i % 3;
k = i < 3;
if( verbose != 0 )
mbedtls_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 );
mbedtls_sha256_starts( &ctx, k );
if( j == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
mbedtls_sha256_update( &ctx, buf, buflen );
}
else
mbedtls_sha256_update( &ctx, sha256_test_buf[j],
sha256_test_buflen[j] );
mbedtls_sha256_finish( &ctx, sha256sum );
if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_sha256_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA256_C */

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/**
* \file mbedtls_sha256.h
*
* \brief SHA-224 and SHA-256 cryptographic hash function
*
* Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MBEDTLS_SHA256_H
#define MBEDTLS_SHA256_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include <stddef.h>
#include <stdint.h>
#if !defined(MBEDTLS_SHA256_ALT)
// Regular implementation
//
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief SHA-256 context structure
*/
typedef struct
{
uint32_t total[2]; /*!< number of bytes processed */
uint32_t state[8]; /*!< intermediate digest state */
unsigned char buffer[64]; /*!< data block being processed */
int is224; /*!< 0 => SHA-256, else SHA-224 */
}
mbedtls_sha256_context;
/**
* \brief Initialize SHA-256 context
*
* \param ctx SHA-256 context to be initialized
*/
void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
/**
* \brief Clear SHA-256 context
*
* \param ctx SHA-256 context to be cleared
*/
void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
/**
* \brief Clone (the state of) a SHA-256 context
*
* \param dst The destination context
* \param src The context to be cloned
*/
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src );
/**
* \brief SHA-256 context setup
*
* \param ctx context to be initialized
* \param is224 0 = use SHA256, 1 = use SHA224
*/
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
/**
* \brief SHA-256 process buffer
*
* \param ctx SHA-256 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
size_t ilen );
/**
* \brief SHA-256 final digest
*
* \param ctx SHA-256 context
* \param output SHA-224/256 checksum result
*/
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );
/* Internal use */
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
#ifdef __cplusplus
}
#endif
#else /* MBEDTLS_SHA256_ALT */
#include "sha256_alt.h"
#endif /* MBEDTLS_SHA256_ALT */
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief Output = SHA-256( input buffer )
*
* \param input buffer holding the data
* \param ilen length of the input data
* \param output SHA-224/256 checksum result
* \param is224 0 = use SHA256, 1 = use SHA224
*/
void mbedtls_sha256( const unsigned char *input, size_t ilen,
unsigned char output[32], int is224 );
/**
* \brief Checkup routine
*
* \return 0 if successful, or 1 if the test failed
*/
int mbedtls_sha256_self_test( int verbose );
#ifdef __cplusplus
}
#endif
#endif /* mbedtls_sha256.h */