--- /dev/null
+/* bcal-performance.c */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 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/>.
+*/
+
+/*
+ * \file bcal-performance.c
+ * \author Daniel Otte
+ * \email daniel.otte@rub.de
+ * \date 2010-02-16
+ * \license GPLv3 or later
+ *
+ */
+
+#include "bcal-performance.h"
+#include "keysize_descriptor.h"
+#include "blockcipher_descriptor.h"
+#include "performance_test.h"
+#include "stack_measuring.h"
+#include "cli.h"
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <avr/pgmspace.h>
+
+#define PATTERN_A 0xAA
+#define PATTERN_B 0x55
+
+
+static
+void printvalue(unsigned long v){
+ char str[20];
+ int i;
+ ultoa(v, str, 10);
+ for(i=0; i<10-strlen(str); ++i){
+ cli_putc(' ');
+ }
+ cli_putstr(str);
+}
+
+void bcal_performance(const bcdesc_t* bcd){
+ bcdesc_t bc;
+ memcpy_P(&bc, bcd, sizeof(bcdesc_t));
+ uint8_t ctx[bc.ctxsize_B];
+ uint8_t data[(bc.blocksize_b+7)/8];
+ uint16_t keysize = get_keysize(bc.valid_keysize_desc);
+ uint8_t key[(keysize+7)/8];
+ uint64_t t;
+ uint8_t i;
+
+ if(bc.type!=BCDESC_TYPE_BLOCKCIPHER)
+ return;
+ calibrateTimer();
+ print_overhead();
+ cli_putstr_P(PSTR("\r\n\r\n === "));
+ cli_putstr_P(bc.name);
+ cli_putstr_P(PSTR(" performance === "
+ "\r\n type: blockcipher"
+ "\r\n keysize (bits): "));
+ printvalue(keysize);
+
+ cli_putstr_P(PSTR("\r\n ctxsize (bytes): "));
+ printvalue(bc.ctxsize_B);
+
+ cli_putstr_P(PSTR("\r\n blocksize (bits): "));
+ printvalue(bc.blocksize_b);
+
+
+
+ t=0;
+ if(bc.init.init1){
+ if((bc.flags&BC_INIT_TYPE)==BC_INIT_TYPE_1){
+ for(i=0; i<32; ++i){
+ startTimer(0);
+ START_TIMER;
+ (bc.init.init1)(key, &ctx);
+ STOP_TIMER;
+ t += stopTimer();
+ if(i!=31 && bc.free){
+ bc.free(&ctx);
+ }
+ }
+ } else {
+ for(i=0; i<32; ++i){
+ startTimer(0);
+ START_TIMER;
+ (bc.init.init2)(key, keysize, &ctx);
+ STOP_TIMER;
+ t += stopTimer();
+ if(i!=31 && bc.free){
+ bc.free(&ctx);
+ }
+ }
+ }
+ t>>=5;
+ cli_putstr_P(PSTR("\r\n init (cycles): "));
+ printvalue(t);
+ }
+ t=0;
+ for(i=0; i<32; ++i){
+ startTimer(0);
+ START_TIMER;
+ bc.enc.enc1(data, &ctx);
+ STOP_TIMER;
+ t += stopTimer();
+ }
+ t>>=5;
+ cli_putstr_P(PSTR("\r\n encrypt (cycles): "));
+ printvalue(t);
+
+ t=0;
+ for(i=0; i<32; ++i){
+ startTimer(0);
+ START_TIMER;
+ bc.dec.dec1(data, &ctx);
+ STOP_TIMER;
+ t += stopTimer();
+ }
+ t>>=5;
+ cli_putstr_P(PSTR("\r\n decrypt (cycles): "));
+ printvalue(t);
+
+ if(bc.free){
+ bc.free(&ctx);
+ }
+}
+
+void bcal_stacksize(const bcdesc_t* bcd){
+ bcdesc_t bc;
+ stack_measuring_ctx_t smctx;
+ memcpy_P(&bc, bcd, sizeof(bcdesc_t));
+ uint8_t ctx[bc.ctxsize_B];
+ uint8_t data[(bc.blocksize_b+7)/8];
+ uint16_t keysize = get_keysize(bc.valid_keysize_desc);
+ uint8_t key[(keysize+7)/8];
+ uint16_t t1, t2;
+
+ if(bc.type!=BCDESC_TYPE_BLOCKCIPHER)
+ return;
+ cli_putstr_P(PSTR("\r\n\r\n === "));
+ cli_putstr_P(bc.name);
+ cli_putstr_P(PSTR(" stack-usage === "));
+
+ if(bc.init.init1){
+ if((bc.flags&BC_INIT_TYPE)==BC_INIT_TYPE_1){
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.init.init1(&ctx, key);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.init.init1(&ctx, key);
+ t2 = stack_measure_final(&smctx);
+ sei();
+ } else {
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.init.init2(&ctx, keysize, key);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.init.init2(&ctx, keysize, key);
+ t2 = stack_measure_final(&smctx);
+ sei();
+ }
+ t1 = (t1>t2)?t1:t2;
+ cli_putstr_P(PSTR("\r\n init (bytes): "));
+ printvalue((unsigned long)t1);
+ }
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.enc.enc1(data, &ctx);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.enc.enc1(data, &ctx);
+ t2 = stack_measure_final(&smctx);
+ sei();
+
+ t1 = (t1>t2)?t1:t2;
+ cli_putstr_P(PSTR("\r\n encBlock (bytes): "));
+ printvalue((unsigned long)t1);
+
+ cli();
+ stack_measure_init(&smctx, PATTERN_A);
+ bc.dec.dec1(data, &ctx);
+ t1 = stack_measure_final(&smctx);
+ stack_measure_init(&smctx, PATTERN_B);
+ bc.dec.dec1(data, &ctx);
+ t2 = stack_measure_final(&smctx);
+ sei();
+
+ t1 = (t1>t2)?t1:t2;
+ cli_putstr_P(PSTR("\r\n decBlock (bytes): "));
+ printvalue((unsigned long)t1);
+
+ if(bc.free){
+ bc.free(&ctx);
+ }
+}
+
+void bcal_performance_multiple(const bcdesc_t** bcd_list){
+ const bcdesc_t* bcd;
+ for(;;){
+ bcd = (void*)pgm_read_word(bcd_list);
+ if(!bcd){
+ cli_putstr_P(PSTR("\r\n\r\n End of performance figures\r\n"));
+ return;
+ }
+ bcal_performance(bcd);
+ bcal_stacksize(bcd);
+ bcd_list = (void*)((uint8_t*)bcd_list + 2);
+ }
+}
projects / avr-crypto-lib.git / blobdiff