*
*/
-#include <avr/pgmspace.h>
#include <stdlib.h>
#include "blockcipher_descriptor.h"
#include "present.h"
#include "keysize_descriptor.h"
-const char present_str[] PROGMEM = "Present";
+const char present_str[] = "Present";
-const uint8_t present_keysize_desc[] PROGMEM = { KS_TYPE_LIST, 1, KS_INT(80),
- KS_TYPE_TERMINATOR };
+const uint8_t present_keysize_desc[] = { KS_TYPE_LIST, 1, KS_INT(80),
+ KS_TYPE_TERMINATOR };
-const bcdesc_t present_desc PROGMEM = {
+const bcdesc_t present_desc = {
BCDESC_TYPE_BLOCKCIPHER,
BC_INIT_TYPE_1,
present_str,
*
*/
-#include <avr/pgmspace.h>
#include "blockcipher_descriptor.h"
#include "present.h"
#include "keysize_descriptor.h"
--- /dev/null
+# Makefile for present
+ALGO_NAME := PRESENT
+
+# comment out the following line for removement of present from the build process
+BLOCK_CIPHERS += $(ALGO_NAME)
+
+$(ALGO_NAME)_DIR := present/
+$(ALGO_NAME)_OBJ := present.o
+$(ALGO_NAME)_INCDIR := bcal/
+$(ALGO_NAME)_TEST_BIN := main-present-test.o bcal_present.o $(CLI_STD) $(BCAL_STD)
+$(ALGO_NAME)_NESSIE_TEST := "nessie"
+$(ALGO_NAME)_PERFORMANCE_TEST := "performance"
+
--- /dev/null
+/* present.c */
+/*
+ This file is part of the ARM-Crypto-Lib.
+ Copyright (C) 2006-2010 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * present.c
+ * a implementation of the PRESENT block-cipher
+ * author: Daniel Otte
+ * email: daniel.otte@rub.de
+ * license: GPLv3
+ *
+ * */
+
+#include <string.h>
+#include <stdint.h>
+#include "present.h"
+
+static uint8_t sbox(uint8_t b){
+ uint8_t sb[]={0xC, 0x5, 0x6, 0xB,
+ 0x9, 0x0, 0xA, 0xD,
+ 0x3, 0xE, 0xF, 0x8,
+ 0x4, 0x7, 0x1, 0x2 };
+ return (((sb[b>>4])<<4)|(sb[b&0xf]));
+}
+
+static uint8_t sbox_inv(uint8_t b){
+ uint8_t sb[]={0x5, 0xE, 0xF, 0x8,
+ 0xC, 0x1, 0x2, 0xD,
+ 0xB, 0x4, 0x6, 0x3,
+ 0x0, 0x7, 0x9, 0xA };
+ return (((sb[b>>4])<<4)|(sb[b&0xf]));
+}
+
+#define SHR_O(a) c=(a)&1; (a)>>=1;
+#define SHR_I(a) (a)=(c?0x8000:0x0000) | ((a)>>1);
+
+static void p(uint16_t* o, uint8_t* i){
+ uint8_t c;
+ uint8_t m,n;
+ for(m=0; m<8; ++m){
+ for(n=0; n<2; ++n){
+ SHR_O(i[m]);
+ SHR_I(o[0]);
+ SHR_O(i[m]);
+ SHR_I(o[1]);
+ SHR_O(i[m]);
+ SHR_I(o[2]);
+ SHR_O(i[m]);
+ SHR_I(o[3]);
+ }
+ }
+}
+
+static void p_inv(uint8_t* o, uint8_t* i){
+ uint8_t tmp[8];
+ p((uint16_t*)tmp, i);
+ p((uint16_t*)o, tmp);
+}
+
+void present_init(const uint8_t* key, uint8_t keysize_b, present_ctx_t* ctx){
+ uint8_t buffer[10], tmp[2];
+ uint8_t i;
+ memcpy(buffer, key, 10);
+ memcpy(&(ctx->k[0]), buffer+2, 8);
+ for(i=1; i<32; ++i){
+ /* rotate buffer 19 right */
+ memcpy(tmp, buffer, 2);
+ memmove(buffer, buffer+2, 8);
+ memcpy(buffer+8, tmp, 2);
+ /* three shifts to do*/
+ tmp[1]=buffer[0];
+ *((uint64_t*)buffer)>>=3;
+ *((uint16_t*)(buffer+8))>>=3;
+ buffer[9] |= tmp[1]<<5;
+ buffer[7] |= tmp[0]<<5;
+ /* rotating done now substitution */
+ buffer[9] = (sbox(buffer[9])&0xF0) | ((buffer[9])&0x0F);
+ /* xor with round counter */
+ *((uint16_t*)(buffer+1)) ^= (uint16_t)i<<7;
+ memcpy(&(ctx->k[i]), buffer+2, 8);
+ }
+}
+
+void present_enc(void* buffer, present_ctx_t* ctx){
+ uint8_t i,j,tmp[8];
+ for(i=0; i<31; ++i){
+ *((uint64_t*)buffer) ^= ctx->k[i];
+ for(j=0; j<8; ++j){
+ tmp[j] = sbox(((uint8_t*)buffer)[j]);
+ }
+ p((uint16_t*)buffer, tmp);
+ }
+ *((uint64_t*)buffer) ^= ctx->k[31];
+}
+
+
+void present_dec(void* buffer, present_ctx_t* ctx){
+ uint8_t j,tmp[8];
+ int8_t i;
+ *((uint64_t*)buffer) ^= ctx->k[31];
+
+ for(i=30; i>=0; --i){
+ p_inv(tmp, (uint8_t*)buffer);
+ for(j=0; j<8; ++j){
+ ((uint8_t*)buffer)[j] = sbox_inv(tmp[j]);
+ }
+ *((uint64_t*)buffer) ^= ctx->k[i];
+ }
+}
--- /dev/null
+/* present.h */
+/*
+ This file is part of the ARM-Crypto-Lib.
+ Copyright (C) 2008 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+#ifndef PRESENT_H_
+#define PRESENT_H_
+
+#include <stdint.h>
+
+typedef struct present_ctx_st{
+ uint64_t k[32];
+} present_ctx_t;
+
+
+void present_init(const uint8_t* key, uint8_t keysize_b, present_ctx_t* ctx);
+void present_enc(void* buffer, present_ctx_t* ctx);
+void present_dec(void* buffer, present_ctx_t* ctx);
+
+
+#endif /*PRESENT_H_*/
* \file seed_c.c
* \author Daniel Otte
* \date 2007-06-1
- * \brief SEED parts in C for AVR
+ * \brief SEED parts in C for ARM
* \par License
* GPL
*
void testrun_cscipher(void){
uint8_t data[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef };
- uint8_t key[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
- 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
+ uint8_t key[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+ 0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10 };
cscipher_ctx_t ctx;
cli_putstr("\r\n== CS-Cipher test==\r\nkey: ");
cli_hexdump(key, 16);
--- /dev/null
+/* main-present-test.c */
+/*
+ This file is part of the ARM-Crypto-Lib.
+ Copyright (C) 2006-2010 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+ * present test-suit
+ *
+*/
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "config.h"
+#include "cli.h"
+#include "dump.h"
+#include "uart_lowlevel.h"
+#include "sysclock.h"
+#include "hw_gptm.h"
+#include "config.h"
+
+#include <present.h>
+#include "nessie_bc_test.h"
+#include "performance_test.h"
+#include "bcal-performance.h"
+#include "bcal_present.h"
+
+const char* algo_name = "Present";
+
+void uart0_putc(char byte){
+ uart_putc(UART_0, byte);
+}
+
+char uart0_getc(void){
+ return uart_getc(UART_0);
+}
+
+const bcdesc_t* algolist[] = {
+ (bcdesc_t*)&present_desc,
+ NULL
+};
+
+/*****************************************************************************
+ * additional validation-functions *
+ *****************************************************************************/
+void present_genctx_dummy(uint8_t* key, uint16_t keysize_b, present_ctx_t* ctx){
+ present_init(key, keysize_b, ctx);
+}
+
+void testrun_nessie_present(void){
+ nessie_bc_ctx.blocksize_B = 8;
+ nessie_bc_ctx.keysize_b = 80;
+ nessie_bc_ctx.name = algo_name;
+ nessie_bc_ctx.ctx_size_B = sizeof(present_ctx_t);
+ nessie_bc_ctx.cipher_enc = (nessie_bc_enc_fpt)present_enc;
+ nessie_bc_ctx.cipher_dec = (nessie_bc_dec_fpt)present_dec;
+ nessie_bc_ctx.cipher_genctx = (nessie_bc_gen_fpt)present_genctx_dummy;
+
+ nessie_bc_run();
+}
+
+void testrun_selfenc(uint8_t* key, uint8_t* buffer){
+ present_ctx_t ctx;
+ cli_putstr("\r\nkey : ");
+ cli_hexdump(key, 10);
+ cli_putstr("\r\nplain : ");
+ cli_hexdump(buffer, 8);
+ present_init(key, 80, &ctx);
+ present_enc(buffer, &ctx);
+ cli_putstr("\r\ncipher: ");
+ cli_hexdump(buffer, 8);
+ present_dec(buffer, &ctx);
+ cli_putstr("\r\nplain : ");
+ cli_hexdump(buffer, 8);
+ cli_putstr("\r\n");
+}
+
+void testrun_self_present(void){
+ uint8_t buffer[8], key[10];
+ cli_putstr("\r\n\r\n=== Testvectors from the paper ===\r\n");
+
+ memset(buffer, 0, 8);
+ memset(key, 0, 10);
+ testrun_selfenc(key, buffer);
+
+ memset(buffer, 0, 8);
+ memset(key, 0xFF, 10);
+ testrun_selfenc(key, buffer);
+
+ memset(buffer, 0xFF, 8);
+ memset(key, 0, 10);
+ testrun_selfenc(key, buffer);
+
+ memset(buffer, 0xFF, 8);
+ memset(key, 0xFF, 10);
+ testrun_selfenc(key, buffer);
+
+}
+
+void testrun_performance_present(void){
+ bcal_performance_multiple(algolist);
+}
+
+/*****************************************************************************
+ * main *
+ *****************************************************************************/
+
+const char nessie_str[] = "nessie";
+const char test_str[] = "test";
+const char performance_str[] = "performance";
+const char echo_str[] = "echo";
+
+const cmdlist_entry_t cmdlist[] = {
+ { nessie_str, NULL, testrun_nessie_present},
+ { test_str, NULL, testrun_self_present},
+ { performance_str, NULL, testrun_performance_present},
+ { echo_str, (void*)1, (void_fpt)echo_ctrl},
+ { NULL, NULL, NULL}
+};
+
+int main (void){
+ sysclk_set_freq(SYS_FREQ);
+ sysclk_mosc_verify_enable();
+ uart_init(UART_0, 115200, 8, UART_PARATY_NONE, UART_STOPBITS_ONE);
+ gptm_set_timer_32periodic(TIMER0);
+
+ cli_rx = uart0_getc;
+ cli_tx = uart0_putc;
+
+ for(;;){
+ cli_putstr("\r\n\r\nARM-Crypto-Lib VS (");
+ cli_putstr(algo_name);
+ cli_putstr("; ");
+ cli_putstr(__DATE__);
+ cli_putc(' ');
+ cli_putstr(__TIME__);
+ cli_putstr(")\r\nloaded and running\r\n");
+ cmd_interface(cmdlist);
+ }
+}
projects / arm-crypto-lib.git / commitdiff