/* shavs.c */
/*
This file is part of the AVR-Crypto-Lib.
- Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+ Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.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
*/
/**
* \file shavs.c
- * \author Daniel Otte
+ * \author Daniel Otte
* \date 2006-05-16
* \license GPLv3 or later
- *
+ *
*/
#include <avr/pgmspace.h>
#include <stdint.h>
#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
#include "hashfunction_descriptor.h"
+#include "hfal-basic.h"
#include "shavs.h"
#include "string-extras.h"
#include "cli.h"
-hfdesc_t* algo=NULL;
-hfdesc_t** algolist=NULL;
+
+#ifdef DEBUG
+# undef DEBUG
+#endif
+
+#define DEBUG 0
+
+#if DEBUG
+# include "config.h"
+# include <util/delay.h>
+#endif
+
+hfdesc_t* shavs_algo=NULL;
+hfdesc_t** shavs_algolist=NULL;
+
+#define shavs_out_file stdout
void shavs_listalgos(void){
char option = 'a';
-
- cli_putstr_P(PSTR("\r\nDBG: &algolist: "));
- cli_hexdump(&algolist, 2);
- cli_putstr_P(PSTR("\r\nDBG: algolist[0]: "));
- cli_hexdump(algolist, 8);
-
- hfdesc_t* t;
+
+ hfdesc_t *t;
uint8_t i=0;
- cli_putstr_P(PSTR("\r\nthe following algorithms are available:\r\n"));
- while(option<='z' && (t=(hfdesc_t*)pgm_read_word(&(algolist[i])))){
- cli_putc('\t');
- cli_putc((t==algo)?'*':' ');
- cli_putc(option++);
- cli_putstr_P(PSTR(":\t"));
- cli_putstr_P((void*)(pgm_read_word(&(t->name))));
- cli_putstr_P(PSTR("\r\n"));
+ fputs_P(PSTR("\nthe following algorithms are available:\n"), shavs_out_file);
+ while(option <= 'z' && (t = (hfdesc_t*)pgm_read_word(&(shavs_algolist[i])))){
+ fprintf_P(shavs_out_file, PSTR("\t%c%c:\t%S\n"),
+ (t == shavs_algo) ? '*' : ' ', option++, pgm_read_word(&(t->name)));
i++;
}
}
-void shavs_setalgo(char* param){
+void shavs_setalgo(char *param){
param = strstrip(param);
if(param[1]=='\0'){ /* single letter specified */
- uint8_t i,option = param[0]-'a';
-
- if(!algolist){
- cli_putstr_P(PSTR("\r\nERROR: algolist not set!"));
+ uint8_t i, option = param[0] - 'a';
+
+ if(!shavs_algolist){
+ fputs_P(PSTR("\nERROR: shavs_algolist not set!"), shavs_out_file);
return;
}
for(i=0; i<=option; ++i){
- if((void*)pgm_read_word(&(algolist[i]))==NULL){
- cli_putstr_P(PSTR("\r\nERROR: invalid selection!"));
+ if((void*)pgm_read_word(&(shavs_algolist[i]))==NULL){
+ fputs_P(PSTR("\r\nERROR: invalid selection!"), shavs_out_file);
return;
}
}
- algo=(hfdesc_t*)pgm_read_word(&(algolist[option]));
- } else { /* name specifyed */
- hfdesc_t* t=NULL;
+ shavs_algo=(hfdesc_t*)pgm_read_word(&(shavs_algolist[option]));
+ } else { /* name specifyed */
+ hfdesc_t *t=NULL;
uint8_t i=0;
- while((t=(hfdesc_t*)pgm_read_word(&(algolist[i]))) &&
+ while((t=(hfdesc_t*)pgm_read_word(&(shavs_algolist[i]))) &&
strcasecmp_P(param, (void*)pgm_read_word(&(t->name))))
++i;
if(t){
- algo=t;
+ shavs_algo=t;
}else{
+ fprintf_P(shavs_out_file, PSTR("\nERROR: could not find \"%s\"!"), param);
cli_putstr_P(PSTR("\r\nERROR: could not find \""));
cli_putstr(param);
cli_putstr_P(PSTR("\"!"));
- }
+ }
+ }
+}
+
+typedef struct {
+ uint16_t buffer_idx;
+ uint16_t buffersize_B;
+ uint32_t blocks;
+ hfgen_ctx_t ctx;
+ uint8_t *buffer;
+ uint8_t in_byte;
+} shavs_ctx_t;
+
+static shavs_ctx_t shavs_ctx;
+
+uint8_t buffer_add(char c){
+ uint8_t v,t;
+ if(shavs_ctx.buffer_idx==shavs_ctx.buffersize_B){
+ hfal_hash_nextBlock(&(shavs_ctx.ctx), shavs_ctx.buffer);
+ ++shavs_ctx.blocks;
+ shavs_ctx.buffer_idx=0;
+ cli_putc('.');
+ }
+ if(c>='0' && c<='9'){
+ v=c-'0';
+ }else{
+ c &= (uint8_t)~('a' ^ 'A');
+ if(c>='A' && c<='F'){
+ v=c-'A'+10;
+ }else{
+ return 1;
+ }
+ }
+ t=shavs_ctx.buffer[shavs_ctx.buffer_idx];
+ if(shavs_ctx.in_byte){
+ t |= v;
+ shavs_ctx.buffer[shavs_ctx.buffer_idx] = t;
+ shavs_ctx.buffer_idx++;
+ shavs_ctx.in_byte = 0;
+ }else{
+ t = v<<4;
+ shavs_ctx.buffer[shavs_ctx.buffer_idx] = t;
+ shavs_ctx.in_byte = 1;
+ }
+ return 0;
+}
+
+static
+uint32_t my_strtoul(const char *str){
+ uint32_t r=0;
+ while(*str && (*str<'0' || *str>'9')){
+ str++;
+ }
+ if(!*str){
+ return 0;
+ }
+ while(*str && (*str>='0' && *str<='9')){
+ r *= 10;
+ r += *str-'0';
+ str++;
+ }
+ return r;
+}
+
+int32_t getLength(void){
+ uint32_t len=0;
+ char lenstr[21];
+ char *len2;
+ for(;;){
+ memset(lenstr, 0, 21);
+ cli_getsn_cecho(lenstr, 20);
+ len2 = strstrip(lenstr);
+ if(!strncasecmp_P(len2, PSTR("LEN"), 3)){
+ while(*len2 && *len2!='=')
+ len2++;
+ if(*len2=='='){
+ do{
+ len2++;
+ }while(*len2 && !isdigit((uint8_t)*len2));
+ len = my_strtoul(len2);
+ //len=(uint32_t)strtoul(len2, NULL, 10);
+ return len;
+ }
+ } else {
+ if(!strncasecmp_P(len2, PSTR("EXIT"), 4)){
+ return -1;
+ }
+ }
}
+ return -1;
}
+void shavs_test1(void){ /* KAT tests */
+ uint32_t length=0;
+ int32_t expect_input=0;
+
+ if(!shavs_algo){
+ fputs_P(PSTR("\r\nERROR: select algorithm first!"), shavs_out_file);
+ return;
+ }
+ char c;
+ uint8_t diggest[pgm_read_word(&(shavs_algo->hashsize_b))/8];
+ shavs_ctx.buffersize_B=pgm_read_word(&(shavs_algo->blocksize_b))/8;
+ uint8_t buffer[shavs_ctx.buffersize_B+5];
+ shavs_ctx.buffer = buffer;
+ fprintf_P(shavs_out_file, PSTR("\nbuffer_size = 0x%04"PRIx16" bytes"), shavs_ctx.buffersize_B);
+ for(;;){
+ shavs_ctx.blocks = 0;
+ memset(buffer, 0, shavs_ctx.buffersize_B);
+ length = getLength();
+ if(length<0){
+ return;
+ }
+
+#if DEBUG
+ fprintf_P(shavs_out_file, PSTR("\nLen == %"PRIu32), length)
+#endif
+ if(length==0){
+ expect_input=2;
+ }else{
+ expect_input=((length + 7) >> 2) & (~1L);
+ }
+#if DEBUG
+ fprintf_P(shavs_out_file, PSTR("\r\nexpected_input == %"PRId32), expected_input);
+#endif
+ shavs_ctx.buffer_idx = 0;
+ shavs_ctx.in_byte = 0;
+ shavs_ctx.blocks = 0;
+ uint8_t ret;
+#if DEBUG
+ fprintf_P(shavs_out_file, PSTR("\n HFAL init\n (2) expected_input == "), expected_input);
+#endif
+ ret = hfal_hash_init(shavs_algo, &(shavs_ctx.ctx));
+ if(ret){
+ fprintf_P(shavs_out_file, PSTR("\r\n HFAL init returned with: %"PRIx8), ret);
+ return;
+ }
+#if DEBUG
+ fprintf_P(shavs_out_file, PSTR("\r\n (3) expected_input == %"PRId32"\n"), expected_input)
+#endif
+ while((c=cli_getc_cecho())!='M' && c!='m'){
+ if(!isblank(c)){
+ fprintf_P(shavs_out_file, PSTR("\nERROR: wrong input (1) [0x%"PRIx8"]!\n"), c);
+ hfal_hash_free(&(shavs_ctx.ctx));
+ return;
+ }
+ }
+ if((c=cli_getc_cecho())!='s' && c!='S'){
+ fputs_P(PSTR("\nERROR: wrong input (2)!\n"), shavs_out_file);
+ hfal_hash_free(&(shavs_ctx.ctx));
+ return;
+ }
+ if((c=cli_getc_cecho())!='g' && c!='G'){
+ fputs_P(PSTR("\nERROR: wrong input (3)!\n"), shavs_out_file);
+ hfal_hash_free(&(shavs_ctx.ctx));
+ return;
+ }
+ while((c=cli_getc_cecho())!='='){
+ if(!isblank(c)){
+ fputs_P(PSTR("\nERROR: wrong input (4)!\n"), shavs_out_file);
+ hfal_hash_free(&(shavs_ctx.ctx));
+ return;
+ }
+ }
+#if DEBUG
+ fputs_P(PSTR("\r\nparsing started"), shavs_out_file);
+#endif
+ shavs_ctx.buffer_idx = 0;
+ shavs_ctx.in_byte = 0;
+ shavs_ctx.blocks = 0;
+ while(expect_input>0){
+ c=cli_getc_cecho();
+#if DEBUG
+ fprintf_P(shavs_out_file, PSTR("\n\t(%"PRId32") "), expected_input);
+ _delay_ms(500);
+#endif
+ if(buffer_add(c)==0){
+ --expect_input;
+ }else{
+ if(!isblank((uint16_t)c)){
+ fprintf_P(shavs_out_file, PSTR("\nERROR: wrong input (5) (%c)!\n"), c);
+ hfal_hash_free(&(shavs_ctx.ctx));
+ return;
+ }
+ }
+ }
+#if DEBUG
+ cli_putstr_P(PSTR("\r\nBuffer-A:"));
+ cli_hexdump_block(buffer, shavs_ctx.buffersize_B, 5, 8);
+
+ cli_putstr_P(PSTR("\r\n starting finalisation"));
+ cli_putstr_P(PSTR("\r\n\tblocks == "));
+ cli_hexdump_rev(&(shavs_ctx.blocks),4);
+ cli_putstr_P(PSTR("\r\n\tbuffer_idx == "));
+ cli_hexdump_rev(&(shavs_ctx.buffer_idx),2);
+ cli_putstr_P(PSTR("\r\n\tin_byte == "));
+ cli_hexdump_rev(&(shavs_ctx.in_byte),1);
+ _delay_ms(500);
+
+ cli_putstr_P(PSTR("\r\n starting last block"));
+ cli_putstr_P(PSTR("\r\n\tlength == "));
+ cli_hexdump_rev(&length,4);
+ cli_putstr_P(PSTR("\r\n\tbuffersize_B == "));
+ cli_hexdump_rev(&(shavs_ctx.buffersize_B),2);
+ uint16_t temp=length-(shavs_ctx.blocks)*((shavs_ctx.buffersize_B)*8);
+ cli_putstr_P(PSTR("\r\n\t (temp) == "));
+ cli_hexdump_rev(&temp,2);
+ _delay_ms(500);
+ temp=length-(shavs_ctx.blocks)*((shavs_ctx.buffersize_B)*8);
+#else
+ uint16_t temp=length-(shavs_ctx.blocks)*((shavs_ctx.buffersize_B)*8);
+#endif
+ hfal_hash_lastBlock( &(shavs_ctx.ctx), buffer, /* be aware of freaking compilers!!! */
+ temp );
+#if DEBUG
+ cli_putstr_P(PSTR("\r\n starting ctx2hash"));
+ _delay_ms(500);
+#endif
+ hfal_hash_ctx2hash(diggest, &(shavs_ctx.ctx));
+#if DEBUG
+ cli_putstr_P(PSTR("\r\n starting hash free"));
+#endif
+ hfal_hash_free(&(shavs_ctx.ctx));
+ cli_putstr_P(PSTR("\r\n MD = "));
+ cli_hexdump(diggest, pgm_read_word(&(shavs_algo->hashsize_b))/8);
+
+ }
+}
+
+void shavs_test2(void){ /* Monte Carlo tests for SHA-1 & SHA-2 */
+ uint16_t expected_input;
+ uint16_t count;
+ uint8_t v;
+ uint8_t index=0;
+ char c;
+ if(!shavs_algo){
+ cli_putstr_P(PSTR("\r\nERROR: select algorithm first!"));
+ return;
+ }
+ uint8_t ml=pgm_read_word(&(shavs_algo->hashsize_b))/8;
+ uint8_t m[ml*4+8];
+ for(;;){
+ while((c=cli_getc_cecho())!='S' && c!='s'){
+ if(!isblank(c)){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (1) [0x"));
+ cli_hexdump(&c, 1);
+ cli_putstr_P(PSTR("]!\r\n"));
+ return;
+ }
+ }
+ if((c=cli_getc_cecho())!='e' && c!='e'){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (2)!\r\n"));
+ return;
+ }
+ if((c=cli_getc_cecho())!='e' && c!='e'){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (3)!\r\n"));
+ return;
+ }
+ if((c=cli_getc_cecho())!='d' && c!='D'){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (4)!\r\n"));
+ return;
+ }
+ while((c=cli_getc_cecho())!='='){
+ if(!isblank(c)){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (5)!\r\n"));
+ return;
+ }
+ }
+ expected_input = ml*2;
+ memset(m+2*ml, 0, ml);
+ do{
+ v=0xff;
+ c=cli_getc_cecho();
+ if(c>='0' && c<='9'){
+ v = c - '0';
+ }else{
+ c |= 'A'^'a';
+ if(c>='a' && c<='f'){
+ v = c - 'a' +10;
+ }
+ }
+ if(v<0x10){
+ c=m[ml*2+index/2];
+ if(index&1){
+ c |= v;
+ }else{
+ c |=v<<4;
+ }
+ m[ml*2+index/2]=c;
+ index++;
+ expected_input--;
+ }
+ }while(expected_input);
+ /* so we have the seed */
+ cli_putstr_P(PSTR("\r\nstarting processing"));
+ uint16_t j;
+ for(count=0; count<100; ++count){
+ memcpy(m, m+ml*2, ml);
+ memcpy(m+ml, m+ml*2, ml);
+ for(j=0; j<1000; ++j){
+ hfal_hash_mem(shavs_algo, m+ml*3, m, ml*3*8);
+ memmove(m, m+ml, 3*ml);
+ }
+ cli_putstr_P(PSTR("\r\n\r\nCOUNT = "));
+ if(count>=10){
+ cli_putc(count/10+'0');
+ }
+ cli_putc(count%10+'0');
+ cli_putstr_P(PSTR("\r\nMD = "));
+ cli_hexdump(m+ml*2, ml);
+ }
+ }
+}
+
+void shavs_test3(void){ /* Monte Carlo tests for SHA-3 */
+ uint16_t expected_input;
+ uint16_t count;
+ uint8_t v;
+ uint8_t index=0;
+ char c;
+ if(!shavs_algo){
+ cli_putstr_P(PSTR("\r\nERROR: select algorithm first!"));
+ return;
+ }
+ uint8_t ml=pgm_read_word(&(shavs_algo->hashsize_b))/8;
+ uint8_t m[ml+128];
+ for(;;){
+ while((c=cli_getc_cecho())!='S' && c!='s'){
+ if(!isblank(c)){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (1) [0x"));
+ cli_hexdump(&c, 1);
+ cli_putstr_P(PSTR("]!\r\n"));
+ return;
+ }
+ }
+ if((c=cli_getc_cecho())!='e' && c!='e'){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (2)!\r\n"));
+ return;
+ }
+ if((c=cli_getc_cecho())!='e' && c!='e'){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (3)!\r\n"));
+ return;
+ }
+ if((c=cli_getc_cecho())!='d' && c!='D'){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (4)!\r\n"));
+ return;
+ }
+ while((c=cli_getc_cecho())!='='){
+ if(!isblank(c)){
+ cli_putstr_P(PSTR("\r\nERROR: wrong input (5)!\r\n"));
+ return;
+ }
+ }
+ expected_input = 1024/4;
+ memset(m+ml, 0, 1024/8);
+ do{
+ v=0xff;
+ c=cli_getc_cecho();
+ if(c>='0' && c<='9'){
+ v = c - '0';
+ }else{
+ c |= 'A'^'a';
+ if(c>='a' && c<='f'){
+ v = c - 'a' +10;
+ }
+ }
+ if(v<0x10){
+ c=m[ml+index/2];
+ if(index&1){
+ c |= v;
+ }else{
+ c |=v<<4;
+ }
+ m[ml+index/2]=c;
+ index++;
+ expected_input--;
+ }
+ }while(expected_input);
+ /* so we have the seed */
+ cli_putstr_P(PSTR("\r\nstarting processing"));
+ uint16_t j;
+ for(count=0; count<100; ++count){
+ for(j=0; j<1000; ++j){
+ hfal_hash_mem(shavs_algo, m, m+ml, 1024);
+ memmove(m+ml, m, 1024/8);
+ }
+ cli_putstr_P(PSTR("\r\n\r\nj = "));
+ if(count>=10){
+ cli_putc(count/10+'0');
+ }
+ cli_putc(count%10+'0');
+ cli_putstr_P(PSTR("\r\nMD = "));
+ cli_hexdump(m+ml, ml);
+
+ }
+ }
+}
projects / avr-crypto-lib.git / blobdiff