Adding Present
このコミットが含まれているのは:
コミット
f4853b26a5
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@ -25,18 +25,17 @@
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*
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*/
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#include <avr/pgmspace.h>
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#include <stdlib.h>
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#include "blockcipher_descriptor.h"
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#include "present.h"
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#include "keysize_descriptor.h"
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const char present_str[] PROGMEM = "Present";
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const char present_str[] = "Present";
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const uint8_t present_keysize_desc[] PROGMEM = { KS_TYPE_LIST, 1, KS_INT(80),
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KS_TYPE_TERMINATOR };
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const uint8_t present_keysize_desc[] = { KS_TYPE_LIST, 1, KS_INT(80),
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KS_TYPE_TERMINATOR };
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const bcdesc_t present_desc PROGMEM = {
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const bcdesc_t present_desc = {
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BCDESC_TYPE_BLOCKCIPHER,
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BC_INIT_TYPE_1,
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present_str,
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@ -25,7 +25,6 @@
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*
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*/
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#include <avr/pgmspace.h>
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#include "blockcipher_descriptor.h"
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#include "present.h"
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#include "keysize_descriptor.h"
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@ -0,0 +1,13 @@
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# Makefile for present
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ALGO_NAME := PRESENT
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# comment out the following line for removement of present from the build process
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BLOCK_CIPHERS += $(ALGO_NAME)
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$(ALGO_NAME)_DIR := present/
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$(ALGO_NAME)_OBJ := present.o
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$(ALGO_NAME)_INCDIR := bcal/
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$(ALGO_NAME)_TEST_BIN := main-present-test.o bcal_present.o $(CLI_STD) $(BCAL_STD)
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$(ALGO_NAME)_NESSIE_TEST := "nessie"
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$(ALGO_NAME)_PERFORMANCE_TEST := "performance"
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@ -0,0 +1,123 @@
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/* present.c */
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/*
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This file is part of the ARM-Crypto-Lib.
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Copyright (C) 2006-2010 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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* present.c
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* a implementation of the PRESENT block-cipher
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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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* */
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#include <string.h>
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#include <stdint.h>
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#include "present.h"
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static uint8_t sbox(uint8_t b){
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uint8_t sb[]={0xC, 0x5, 0x6, 0xB,
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0x9, 0x0, 0xA, 0xD,
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0x3, 0xE, 0xF, 0x8,
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0x4, 0x7, 0x1, 0x2 };
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return (((sb[b>>4])<<4)|(sb[b&0xf]));
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}
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static uint8_t sbox_inv(uint8_t b){
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uint8_t sb[]={0x5, 0xE, 0xF, 0x8,
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0xC, 0x1, 0x2, 0xD,
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0xB, 0x4, 0x6, 0x3,
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0x0, 0x7, 0x9, 0xA };
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return (((sb[b>>4])<<4)|(sb[b&0xf]));
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}
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#define SHR_O(a) c=(a)&1; (a)>>=1;
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#define SHR_I(a) (a)=(c?0x8000:0x0000) | ((a)>>1);
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static void p(uint16_t* o, uint8_t* i){
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uint8_t c;
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uint8_t m,n;
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for(m=0; m<8; ++m){
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for(n=0; n<2; ++n){
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SHR_O(i[m]);
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SHR_I(o[0]);
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SHR_O(i[m]);
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SHR_I(o[1]);
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SHR_O(i[m]);
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SHR_I(o[2]);
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SHR_O(i[m]);
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SHR_I(o[3]);
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}
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}
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}
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static void p_inv(uint8_t* o, uint8_t* i){
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uint8_t tmp[8];
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p((uint16_t*)tmp, i);
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p((uint16_t*)o, tmp);
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}
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void present_init(const uint8_t* key, uint8_t keysize_b, present_ctx_t* ctx){
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uint8_t buffer[10], tmp[2];
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uint8_t i;
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memcpy(buffer, key, 10);
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memcpy(&(ctx->k[0]), buffer+2, 8);
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for(i=1; i<32; ++i){
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/* rotate buffer 19 right */
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memcpy(tmp, buffer, 2);
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memmove(buffer, buffer+2, 8);
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memcpy(buffer+8, tmp, 2);
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/* three shifts to do*/
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tmp[1]=buffer[0];
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*((uint64_t*)buffer)>>=3;
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*((uint16_t*)(buffer+8))>>=3;
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buffer[9] |= tmp[1]<<5;
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buffer[7] |= tmp[0]<<5;
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/* rotating done now substitution */
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buffer[9] = (sbox(buffer[9])&0xF0) | ((buffer[9])&0x0F);
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/* xor with round counter */
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*((uint16_t*)(buffer+1)) ^= (uint16_t)i<<7;
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memcpy(&(ctx->k[i]), buffer+2, 8);
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}
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}
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void present_enc(void* buffer, present_ctx_t* ctx){
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uint8_t i,j,tmp[8];
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for(i=0; i<31; ++i){
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*((uint64_t*)buffer) ^= ctx->k[i];
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for(j=0; j<8; ++j){
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tmp[j] = sbox(((uint8_t*)buffer)[j]);
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}
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p((uint16_t*)buffer, tmp);
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}
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*((uint64_t*)buffer) ^= ctx->k[31];
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}
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void present_dec(void* buffer, present_ctx_t* ctx){
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uint8_t j,tmp[8];
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int8_t i;
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*((uint64_t*)buffer) ^= ctx->k[31];
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for(i=30; i>=0; --i){
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p_inv(tmp, (uint8_t*)buffer);
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for(j=0; j<8; ++j){
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((uint8_t*)buffer)[j] = sbox_inv(tmp[j]);
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}
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*((uint64_t*)buffer) ^= ctx->k[i];
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}
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}
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@ -0,0 +1,34 @@
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/* present.h */
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/*
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This file is part of the ARM-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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#ifndef PRESENT_H_
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#define PRESENT_H_
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#include <stdint.h>
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typedef struct present_ctx_st{
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uint64_t k[32];
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} present_ctx_t;
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void present_init(const uint8_t* key, uint8_t keysize_b, present_ctx_t* ctx);
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void present_enc(void* buffer, present_ctx_t* ctx);
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void present_dec(void* buffer, present_ctx_t* ctx);
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#endif /*PRESENT_H_*/
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@ -20,7 +20,7 @@
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* \file seed_c.c
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* \author Daniel Otte
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* \date 2007-06-1
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* \brief SEED parts in C for AVR
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* \brief SEED parts in C for ARM
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* \par License
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* GPL
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*
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@ -62,8 +62,8 @@ void testrun_nessie_cscipher(void){
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void testrun_cscipher(void){
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uint8_t data[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
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uint8_t key[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
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0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
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uint8_t key[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
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0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
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cscipher_ctx_t ctx;
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cli_putstr("\r\n== CS-Cipher test==\r\nkey: ");
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cli_hexdump(key, 16);
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/* main-present-test.c */
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/*
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This file is part of the ARM-Crypto-Lib.
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Copyright (C) 2006-2010 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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* present test-suit
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*
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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#include "cli.h"
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#include "dump.h"
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#include "uart_lowlevel.h"
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#include "sysclock.h"
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#include "hw_gptm.h"
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#include "config.h"
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#include <present.h>
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#include "nessie_bc_test.h"
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#include "performance_test.h"
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#include "bcal-performance.h"
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#include "bcal_present.h"
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const char* algo_name = "Present";
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void uart0_putc(char byte){
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uart_putc(UART_0, byte);
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}
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char uart0_getc(void){
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return uart_getc(UART_0);
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}
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const bcdesc_t* algolist[] = {
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(bcdesc_t*)&present_desc,
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NULL
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};
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/*****************************************************************************
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* additional validation-functions *
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*****************************************************************************/
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void present_genctx_dummy(uint8_t* key, uint16_t keysize_b, present_ctx_t* ctx){
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present_init(key, keysize_b, ctx);
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}
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void testrun_nessie_present(void){
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nessie_bc_ctx.blocksize_B = 8;
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nessie_bc_ctx.keysize_b = 80;
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nessie_bc_ctx.name = algo_name;
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nessie_bc_ctx.ctx_size_B = sizeof(present_ctx_t);
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nessie_bc_ctx.cipher_enc = (nessie_bc_enc_fpt)present_enc;
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nessie_bc_ctx.cipher_dec = (nessie_bc_dec_fpt)present_dec;
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nessie_bc_ctx.cipher_genctx = (nessie_bc_gen_fpt)present_genctx_dummy;
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nessie_bc_run();
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}
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void testrun_selfenc(uint8_t* key, uint8_t* buffer){
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present_ctx_t ctx;
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cli_putstr("\r\nkey : ");
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cli_hexdump(key, 10);
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cli_putstr("\r\nplain : ");
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cli_hexdump(buffer, 8);
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present_init(key, 80, &ctx);
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present_enc(buffer, &ctx);
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cli_putstr("\r\ncipher: ");
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cli_hexdump(buffer, 8);
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present_dec(buffer, &ctx);
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cli_putstr("\r\nplain : ");
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cli_hexdump(buffer, 8);
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cli_putstr("\r\n");
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}
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void testrun_self_present(void){
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uint8_t buffer[8], key[10];
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cli_putstr("\r\n\r\n=== Testvectors from the paper ===\r\n");
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memset(buffer, 0, 8);
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memset(key, 0, 10);
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testrun_selfenc(key, buffer);
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memset(buffer, 0, 8);
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memset(key, 0xFF, 10);
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testrun_selfenc(key, buffer);
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memset(buffer, 0xFF, 8);
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memset(key, 0, 10);
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testrun_selfenc(key, buffer);
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memset(buffer, 0xFF, 8);
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memset(key, 0xFF, 10);
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testrun_selfenc(key, buffer);
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}
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void testrun_performance_present(void){
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bcal_performance_multiple(algolist);
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}
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/*****************************************************************************
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* main *
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*****************************************************************************/
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const char nessie_str[] = "nessie";
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const char test_str[] = "test";
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const char performance_str[] = "performance";
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const char echo_str[] = "echo";
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const cmdlist_entry_t cmdlist[] = {
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{ nessie_str, NULL, testrun_nessie_present},
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{ test_str, NULL, testrun_self_present},
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{ performance_str, NULL, testrun_performance_present},
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{ echo_str, (void*)1, (void_fpt)echo_ctrl},
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{ NULL, NULL, NULL}
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};
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int main (void){
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sysclk_set_freq(SYS_FREQ);
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sysclk_mosc_verify_enable();
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uart_init(UART_0, 115200, 8, UART_PARATY_NONE, UART_STOPBITS_ONE);
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gptm_set_timer_32periodic(TIMER0);
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cli_rx = uart0_getc;
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cli_tx = uart0_putc;
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for(;;){
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cli_putstr("\r\n\r\nARM-Crypto-Lib VS (");
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cli_putstr(algo_name);
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cli_putstr("; ");
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cli_putstr(__DATE__);
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cli_putc(' ');
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cli_putstr(__TIME__);
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cli_putstr(")\r\nloaded and running\r\n");
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cmd_interface(cmdlist);
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}
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}
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