/* shavs.c */
/*
This file is part of the AVR-Crypto-Lib.
- Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+ Copyright (C) 2006 2007 2008 2009 Daniel Otte (daniel.otte@rub.de)
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 <ctype.h>
#include "hashfunction_descriptor.h"
-#include "hfal-basic.h"
+#include "hfal/hfal-basic.h"
#include "shavs.h"
#include "string-extras.h"
#include "cli.h"
+
+#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;
void shavs_listalgos(void){
char option = 'a';
-
+
hfdesc_t* t;
uint8_t i=0;
cli_putstr_P(PSTR("\r\nthe following algorithms are available:\r\n"));
param = strstrip(param);
if(param[1]=='\0'){ /* single letter specified */
uint8_t i,option = param[0]-'a';
-
+
if(!shavs_algolist){
cli_putstr_P(PSTR("\r\nERROR: shavs_algolist not set!"));
return;
}
}
shavs_algo=(hfdesc_t*)pgm_read_word(&(shavs_algolist[option]));
- } else { /* name specifyed */
+ } else { /* name specifyed */
hfdesc_t* t=NULL;
uint8_t i=0;
while((t=(hfdesc_t*)pgm_read_word(&(shavs_algolist[i]))) &&
cli_putstr_P(PSTR("\r\nERROR: could not find \""));
cli_putstr(param);
cli_putstr_P(PSTR("\"!"));
- }
+ }
}
}
-static uint16_t buffer_idx=0;
-static uint8_t in_byte=0;
-static uint16_t blocks=0;
-static uint8_t* buffer;
-static uint16_t buffersize_B;
-static hfgen_ctx_t ctx;
+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;
-static
uint8_t buffer_add(char c){
uint8_t v,t;
- if(buffer_idx==buffersize_B){
- hfal_hash_nextBlock(&ctx, buffer);
- ++blocks;
- buffer_idx=0;
- in_byte=0;
+ 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;
+ shavs_ctx.in_byte=0;
+ cli_putc('.');
+ memset(shavs_ctx.buffer, 0, shavs_ctx.buffersize_B);
}
if(c>='0' && c<='9'){
v=c-'0';
}else{
- if(c>='a' && c<='f'){
- v=c-'a'+10;
+ c &= (uint8_t)~('a' ^ 'A');
+ if(c>='A' && c<='F'){
+ v=c-'A'+10;
}else{
- if(c>='A' && c<='F'){
- v=c-'A'+10;
- }else{
- return 1;
- }
- }
+ return 1;
+ }
}
-
- t=buffer[buffer_idx];
- if(in_byte){
- t = (t&0xF0) | v;
- buffer[buffer_idx]=t;
- buffer_idx++;
+ 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 = (t&0x0F) | (v<<4);
- buffer[buffer_idx]=t;
+ t |= v<<4;
+ shavs_ctx.buffer[shavs_ctx.buffer_idx]=t;
+ shavs_ctx.in_byte = 1;
}
- in_byte ^= 1;
return 0;
}
-void shavs_test1(void){
+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(*len2));
+ len=(uint32_t)strtoul(len2, NULL, 10);
+ return len;
+ }
+ } else {
+ if(!strncasecmp_P(len2, PSTR("EXIT"), 4)){
+ return -1;
+ }
+ }
+ }
+}
+
+void shavs_test1(void){ /* KAT tests */
uint32_t length=0;
- uint8_t len_set=0;
- if(!shavs_algo){
+ int32_t expect_input=0;
+
+ if(!shavs_algo){
cli_putstr_P(PSTR("\r\nERROR: select algorithm first!"));
return;
}
-
- buffersize_B=pgm_read_word(&(shavs_algo->blocksize_b))/8;
- buffer = malloc(buffersize_B);
-
+ 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;
+ cli_putstr_P(PSTR("\r\nbuffer_size = 0x"));
+ cli_hexdump_rev(&(shavs_ctx.buffersize_B), 2);
+ cli_putstr_P(PSTR(" bytes"));
for(;;){
- blocks = 0;
- do{
- cli_putstr_P(PSTR("\r\n"));
- cli_getsn(lenstr, 20);
- len2 = strstrip(lenstr);
- if(!strncasecmp_P(len2, PSTR("LEN"), 3)){
- while(*len2 && *len2!='=')
- len2++;
- if(*len2=='='){
- len2++;
- length=strtoul(len2, NULL, 0);
- len_set=1;
- }
- } else {
- if(!strncasecmp_P(len2, PSTR("EXIT"), 4)){
- free(buffer);
- return;
- }
- }
- }while(!len_set);
- volatile int32_t expect_input;
- char c;
-
+ shavs_ctx.blocks = 0;
+ memset(buffer, 0, shavs_ctx.buffersize_B);
+ length = getLength();
+ if(length<0){
+ return;
+ }
+
+#if DEBUG
+ cli_putstr_P(PSTR("\r\nLen == "));
+ cli_hexdump_rev(&length, 4);
+#endif
if(length==0){
expect_input=2;
}else{
- expect_input=((length+7)/8)*2;
- }
-
- buffer_idx = 0;
- in_byte=0;
- len_set = 0;
-
- hfal_hash_init(shavs_algo, &ctx);
+ expect_input=((length+7)>>2)&(~1L);
+ }
+#if DEBUG
+ cli_putstr_P(PSTR("\r\nexpected_input == "));
+ cli_hexdump_rev(&expect_input, 4);
+ if(expect_input==0)
+ cli_putstr_P(PSTR("\r\nexpected_input == 0 !!!"));
+#endif
+ shavs_ctx.buffer_idx = 0;
+ shavs_ctx.in_byte = 0;
+ shavs_ctx.blocks = 0;
+ uint8_t ret;
+#if DEBUG
+ cli_putstr_P(PSTR("\r\n HFAL init"));
+ cli_putstr_P(PSTR("\r\n (2) expected_input == "));
+ cli_hexdump_rev(&expect_input, 4);
+#endif
+ ret = hfal_hash_init(shavs_algo, &(shavs_ctx.ctx));
+ if(ret){
+ cli_putstr_P(PSTR("\r\n HFAL init returned with: "));
+ cli_hexdump(&ret, 1);
+ return;
+ }
+#if DEBUG
+ cli_putstr_P(PSTR("\r\n (3) expected_input == "));
+ cli_hexdump_rev(&expect_input, 4);
cli_putstr_P(PSTR("\r\n"));
+#endif
while((c=cli_getc_cecho())!='M' && c!='m'){
if(!isblank(c)){
cli_putstr_P(PSTR("\r\nERROR: wrong input (1) [0x"));
cli_hexdump(&c, 1);
cli_putstr_P(PSTR("]!\r\n"));
- free(buffer);
+ hfal_hash_free(&(shavs_ctx.ctx));
return;
}
}
if((c=cli_getc_cecho())!='s' && c!='S'){
cli_putstr_P(PSTR("\r\nERROR: wrong input (2)!\r\n"));
- free(buffer);
+ hfal_hash_free(&(shavs_ctx.ctx));
return;
}
if((c=cli_getc_cecho())!='g' && c!='G'){
cli_putstr_P(PSTR("\r\nERROR: wrong input (3)!\r\n"));
- free(buffer);
+ hfal_hash_free(&(shavs_ctx.ctx));
return;
}
while((c=cli_getc_cecho())!='='){
if(!isblank(c)){
cli_putstr_P(PSTR("\r\nERROR: wrong input (4)!\r\n"));
- free(buffer);
+ hfal_hash_free(&(shavs_ctx.ctx));
return;
}
}
-
- buffer_idx=0;
+#if DEBUG
+ cli_putstr_P(PSTR("\r\nparsing started"));
+#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
+ cli_putstr_P(PSTR("\r\n\t("));
+ cli_hexdump_rev(&expect_input, 4);
+ cli_putstr_P(PSTR(") "));
+ _delay_ms(500);
+#endif
if(buffer_add(c)==0){
- --expect_input;
+ --expect_input;
}else{
if(!isblank((uint16_t)c)){
cli_putstr_P(PSTR("\r\nERROR: wrong input (5) ("));
cli_putc(c);
cli_putstr_P(PSTR(")!\r\n"));
- free(buffer);
+ hfal_hash_free(&(shavs_ctx.ctx));
return;
}
}
}
- uint8_t diggest[pgm_read_word(shavs_algo->hashsize_b)/8];
- hfal_hash_lastBlock(&ctx, buffer, length-blocks*(buffersize_B*8));
- hfal_hash_ctx2hash(diggest, &ctx);
- hfal_hash_free(&ctx);
+#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
+ /* cli_putstr_P(PSTR("\r\n\t (temp) == "));
+ cli_hexdump_rev(&temp,2); */
+ hfal_hash_lastBlock( &(shavs_ctx.ctx), buffer, /* be aware of freaking compilers!!! */
+// length-(shavs_ctx.blocks)*((shavs_ctx.buffersize_B)*8));
+ 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);
+ }
}
- free(buffer);
}
+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