168 lines
4.8 KiB
C
168 lines
4.8 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 <stdio.h>
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#include <avr/pgmspace.h>
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#include "nessie_common.h"
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#include "hexdigit_tab.h"
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#define nessie_out_file stdout
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void nessie_set_output_stream(FILE* out_stream){
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nessie_out_file = out_stream;
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}
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#ifdef NESSIE_ALIVE
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void nessie_send_alive(void){
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putc(NESSIE_ALIVE_CHAR, nessie_out_file);
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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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putc(NESSIE_ALIVE_CHAR, nessie_out_file);
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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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putc(pgm_read_byte(hexdigit_tab_uc_P + ((block[i]) >> 4)), nessie_out_file);
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putc(pgm_read_byte(hexdigit_tab_uc_P + ((block[i]) & 0xf)), nessie_out_file);
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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(const 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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fputs_P(PSTR("\n!!! formatting error !!!\n"), nessie_out_file);
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return;
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}
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putc('\n', nessie_out_file);
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for(i = 0; i < SPACES-name_len - 1; ++i){
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putc(' ', nessie_out_file);
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}
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fputs(name, stdout);
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putc('=', nessie_out_file);
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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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putc('\n', nessie_out_file);
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for(i = 0; i < SPACES; ++i){
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putc(' ', nessie_out_file);
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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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fprintf_P(nessie_out_file, PSTR("\n\nSet %"PRIu8", vector#%4"PRIu16":"), set, vector);
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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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fprintf_P(nessie_out_file, PSTR("\r\n\r\nTest vectors -- set %"PRIu8"\n====================="), set);
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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(const 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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fputs_P(PSTR("\n\n"
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"********************************************************************************\n"
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"* AVR-Crypto-Lib - crypto primitives for AVR microcontrollers by Daniel Otte *\n"
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"********************************************************************************\n\n"),
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nessie_out_file);
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fprintf_P(nessie_out_file, PSTR("Primitive Name: %s\n"), name);
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/* underline */
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for(i=0; i<16+strlen(name); ++i){
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putc('=', nessie_out_file);
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}
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if(keysize_b){
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fprintf_P(nessie_out_file, PSTR("\nKey size: %"PRIu16" bits"), keysize_b);
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}
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if(blocksize_b){
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fprintf_P(nessie_out_file, PSTR("\nBlock size: %"PRIu16" bits"), blocksize_b);
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}
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if(hashsize_b){
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fprintf_P(nessie_out_file, PSTR("\nHash size: %"PRIu16" bits"), hashsize_b);
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}
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if(macsize_b){
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fprintf_P(nessie_out_file, PSTR("\nMac size: %"PRIu16" bits"), macsize_b);
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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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fputs_P(PSTR("\nNo initial value (IV) mode"), stdout);
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}else{
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fprintf_P(nessie_out_file, PSTR("\nIV size: %"PRIu16" bits"), ivsize_b);
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}
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}
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putc('\n', nessie_out_file);
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}
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void nessie_print_footer(void){
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puts_P(PSTR("\n\n\n\nEnd of test vectors\n\n"));
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}
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