188 lines
5.1 KiB
C
188 lines
5.1 KiB
C
/* nessie_common.c */
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/*
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
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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 3 of the License, or
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(at your option) 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, see <http://www.gnu.org/licenses/>.
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*/
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/**
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*
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* author: Daniel Otte
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* email: daniel.otte@rub.de
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* license: GPLv3
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*
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* common function for nessie-tests
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*
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* */
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#include <string.h>
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#include <stdint.h>
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#include <avr/pgmspace.h>
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#include <stdlib.h> /* utoa() */
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#include "nessie_common.h"
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#include "hexdigit_tab.h"
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#ifdef NESSIE_ALIVE
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void nessie_send_alive(void){
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NESSIE_PUTC(NESSIE_ALIVE_CHAR);
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}
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void nessie_send_alive_a(uint16_t i){
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if((i&31)==0)
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NESSIE_PUTC(NESSIE_ALIVE_CHAR);
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}
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#endif
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void nessie_print_block(uint8_t* block, uint16_t blocksize_bit){
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uint16_t i;
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for(i=0; i<(blocksize_bit+7)/8; ++i){
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NESSIE_PUTC(pgm_read_byte(hexdigit_tab_uc_P+((block[i])>>4)));
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NESSIE_PUTC(pgm_read_byte(hexdigit_tab_uc_P+((block[i])&0xf)));
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}
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}
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#define SPACES 31
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#define BYTESPERLINE 16
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void nessie_print_item(char* name, uint8_t* buffer, uint16_t size_B){
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uint8_t name_len;
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uint8_t i;
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name_len=strlen(name);
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if(name_len>SPACES-1){
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NESSIE_PUTSTR_P(PSTR("\r\n!!! formatting error !!!\r\n"));
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return;
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}
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NESSIE_PUTSTR_P(PSTR("\r\n"));
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for(i=0; i<SPACES-name_len-1; ++i){
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NESSIE_PUTC(' ');
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}
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NESSIE_PUTSTR(name);
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NESSIE_PUTC('=');
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/* now the data printing begins */
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if(size_B<=BYTESPERLINE){
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/* one line seems sufficient */
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nessie_print_block(buffer, size_B*8);
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} else {
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/* we need more lines */
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nessie_print_block(buffer, BYTESPERLINE*8); /* first line */
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int16_t toprint = size_B - BYTESPERLINE;
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buffer += BYTESPERLINE;
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while(toprint > 0){
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NESSIE_PUTSTR_P(PSTR("\r\n"));
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for(i=0; i<SPACES; ++i){
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NESSIE_PUTC(' ');
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}
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nessie_print_block(buffer, ((toprint>BYTESPERLINE)?BYTESPERLINE:toprint)*8);
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buffer += BYTESPERLINE;
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toprint -= BYTESPERLINE;
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}
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}
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}
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void nessie_print_set_vector(uint8_t set, uint16_t vector){
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NESSIE_PUTSTR_P(PSTR("\r\n\r\nSet "));
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NESSIE_PUTC('0'+set%10);
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NESSIE_PUTSTR_P(PSTR(", vector#"));
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NESSIE_PUTC((vector<1000)?' ':'0'+vector/1000);
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NESSIE_PUTC((vector<100)?' ':'0'+(vector/100)%10);
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NESSIE_PUTC((vector<10 )?' ':'0'+(vector/10)%10);
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NESSIE_PUTC('0'+vector%10);
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NESSIE_PUTC(':');
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}
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/* example:
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Test vectors -- set 3
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=====================
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*/
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void nessie_print_setheader(uint8_t set){
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NESSIE_PUTSTR_P(PSTR("\r\n\r\nTest vectors -- set "));
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NESSIE_PUTC('0'+set%10);
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NESSIE_PUTSTR_P(PSTR("\r\n====================="));
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}
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/* example:
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********************************************************************************
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*Project NESSIE - New European Schemes for Signature, Integrity, and Encryption*
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********************************************************************************
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Primitive Name: Serpent
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=======================
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Key size: 256 bits
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Block size: 128 bits
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*/
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void nessie_print_header(char* name,
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uint16_t keysize_b,
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uint16_t blocksize_b,
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uint16_t hashsize_b,
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uint16_t macsize_b,
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uint16_t ivsize_b ){
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uint16_t i;
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NESSIE_PUTSTR_P(PSTR("\r\n\r\n"
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"********************************************************************************\r\n"
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"* AVR-Crypto-Lib - crypto primitives for AVR microcontrolles by Daniel Otte *\r\n"
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"********************************************************************************\r\n"
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"\r\n"));
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NESSIE_PUTSTR_P(PSTR("Primitive Name: "));
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NESSIE_PUTSTR(name);
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NESSIE_PUTSTR_P(PSTR("\r\n"));
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/* underline */
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for(i=0; i<16+strlen(name); ++i){
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NESSIE_PUTC('=');
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}
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char str[6]; /* must catch numbers up to 65535 + terminatin \0 */
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if(keysize_b){
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NESSIE_PUTSTR_P(PSTR("\r\nKey size: "));
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utoa(keysize_b, str, 10);
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NESSIE_PUTSTR(str);
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NESSIE_PUTSTR_P(PSTR(" bits"));
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}
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if(blocksize_b){
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NESSIE_PUTSTR_P(PSTR("\r\nBlock size: "));
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utoa(blocksize_b, str, 10);
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NESSIE_PUTSTR(str);
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NESSIE_PUTSTR_P(PSTR(" bits"));
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}
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if(hashsize_b){
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NESSIE_PUTSTR_P(PSTR("\r\nHash size: "));
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utoa(hashsize_b, str, 10);
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NESSIE_PUTSTR(str);
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NESSIE_PUTSTR_P(PSTR(" bits"));
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}
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if(macsize_b){
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NESSIE_PUTSTR_P(PSTR("\r\nMac size: "));
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utoa(macsize_b, str, 10);
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NESSIE_PUTSTR(str);
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NESSIE_PUTSTR_P(PSTR(" bits"));
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}
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if(ivsize_b){
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if(ivsize_b==(uint16_t)-1){
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NESSIE_PUTSTR_P(PSTR("\r\nNo initial value (IV) mode"));
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}
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{
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NESSIE_PUTSTR_P(PSTR("\r\nIV size: "));
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utoa(ivsize_b, str, 10);
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NESSIE_PUTSTR(str);
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NESSIE_PUTSTR_P(PSTR(" bits"));
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}
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}
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NESSIE_PUTSTR_P(PSTR("\r\n"));
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}
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void nessie_print_footer(void){
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NESSIE_PUTSTR_P(PSTR("\r\n\r\n\r\n\r\nEnd of test vectors\r\n\r\n"));
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}
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