--- /dev/null
+/* scal-nessie.c */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2006-2011 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/>.
+*/
+
+#include <stdint.h>
+#include <string.h>
+#include "streamcipher_descriptor.h"
+#include "scal-basic.h"
+#include "nessie_common.h"
+#include "memxor.h"
+#include <avr/pgmspace.h>
+
+static const uint8_t normal_hooks[] PROGMEM = {
+ 0, 192/64, 256/64, 448/64
+};
+
+static const uint16_t long_hooks[] PROGMEM = {
+ 0, 65472/64, 65536/64, 131008/64
+};
+
+static const char stream0_n[] PROGMEM = "stream[0..63]";
+static const char stream1_n[] PROGMEM = "stream[192..255]";
+static const char stream2_n[] PROGMEM = "stream[256..319]";
+static const char stream3_n[] PROGMEM = "stream[448..511]";
+static const char streamX_n[] PROGMEM = "stream[0..511]xored";
+
+static const char* stream_n_str[] PROGMEM = {
+ stream0_n,
+ stream1_n,
+ stream2_n,
+ stream3_n,
+ streamX_n
+};
+
+static const char stream1_l[] PROGMEM = "stream[65472..65535]";
+static const char stream2_l[] PROGMEM = "stream[65536..65599]";
+static const char stream3_l[] PROGMEM = "stream[131008..131071]";
+static const char streamX_l[] PROGMEM = "stream[0..131071]xored";
+
+static const char* stream_l_str[] PROGMEM = {
+ stream0_n,
+ stream1_l,
+ stream2_l,
+ stream3_l,
+ streamX_l
+};
+
+static const uint8_t list_of_keys[][20] PROGMEM = {
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+ { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xfe, 0xdc,
+ 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x00, 0x00, 0x00, 0x00 },
+ { 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab, 0x89, 0x98, 0xba,
+ 0xdc, 0xfe, 0x10, 0x32, 0x54, 0x76, 0xc3, 0xd2, 0xe1, 0xf0 }
+};
+
+static const uint8_t list_of_ivs[][4] PROGMEM = {
+ { 0x00, 0x00, 0x00, 0x00 },
+ { 0x01, 0x01, 0x01, 0x01 },
+ { 0x01, 0x35, 0x77, 0xaf }
+};
+
+static
+void normal_block(scgen_ctx_t *ctx){
+ uint8_t xor_block[64];
+ uint8_t block[64];
+ PGM_VOID_P hook_ptr = normal_hooks;
+ PGM_VOID_P hook_str_ptr = stream_n_str;
+ char str[21];
+ uint8_t i;
+
+ memset(xor_block, 0, 64);
+ for(i=0; i<=448/64; ++i){
+ scal_cipher_gen_fillblock(block, 64, ctx);
+ memxor(xor_block, block, 64);
+ if(i==pgm_read_byte(hook_ptr)){
+ hook_ptr = (uint8_t*)hook_ptr + 1;
+ strcpy_P(str, (PGM_VOID_P)pgm_read_word(hook_str_ptr));
+ hook_str_ptr = (uint8_t*)hook_str_ptr + 2;
+ nessie_print_item(str, block, 64);
+ }
+ }
+ strcpy_P(str, (PGM_VOID_P)pgm_read_word(hook_str_ptr));
+ nessie_print_item(str, xor_block, 64);
+}
+
+static
+void long_block(scgen_ctx_t *ctx){
+ uint8_t xor_block[64];
+ uint8_t block[64];
+ PGM_VOID_P hook_ptr = long_hooks;
+ PGM_VOID_P hook_str_ptr = stream_l_str;
+ char str[24];
+ uint16_t i;
+
+ memset(xor_block, 0, 64);
+ for(i=0; i<=131008/64; ++i){
+ scal_cipher_gen_fillblock(block, 64, ctx);
+ memxor(xor_block, block, 64);
+ if(i==pgm_read_word(hook_ptr)){
+ hook_ptr = (uint8_t*)hook_ptr + 2;
+ strcpy_P(str, (PGM_VOID_P)pgm_read_word(hook_str_ptr));
+ hook_str_ptr = (uint8_t*)hook_str_ptr + 2;
+ nessie_print_item(str, block, 64);
+ }
+ }
+ strcpy_P(str, (PGM_VOID_P)pgm_read_word(hook_str_ptr));
+ nessie_print_item(str, xor_block, 64);
+}
+
+void scal_nessie_stream_run(const scdesc_t *desc, uint16_t keysize_b, uint16_t ivsize_b){
+ uint8_t name_length = strlen_P((PGM_VOID_P)pgm_read_word(&(desc->name)));
+ char name[name_length+1];
+ memcpy_P(name, (PGM_VOID_P)pgm_read_word(&(desc->name)), name_length+1);
+
+ uint8_t key[(keysize_b+7)/8];
+ uint8_t iv[(ivsize_b+7)/8];
+ uint16_t v;
+ scgen_ctx_t ctx;
+ nessie_print_header(name, keysize_b, 0, 0, 0, ivsize_b?ivsize_b:((uint16_t)-1));
+
+ memset(iv, 0, (ivsize_b+7)/8);
+ memset(key, 0, (keysize_b+7)/8);
+ /*** Test SET 1 ***/
+ nessie_print_setheader(1);
+ for(v=0;v<keysize_b; ++v){
+ nessie_print_set_vector(1,v);
+ key[v/8] |= 0x80>>(v&7);
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ if(ivsize_b){
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ }
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ normal_block(&ctx);
+ key[v/8] = 0;
+ scal_cipher_free(&ctx);
+ }
+ /*** Test SET 2 ***/
+ nessie_print_setheader(2);
+ for(v=0;v<256; ++v){
+ nessie_print_set_vector(2,v);
+ memset(key, v&0xff, (keysize_b+7)/8);
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ if(ivsize_b){
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ }
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ normal_block(&ctx);
+ scal_cipher_free(&ctx);
+ }
+ /*** Test SET 3 ***/
+ nessie_print_setheader(3);
+ for(v=0;v<256; ++v){
+ uint8_t i;
+ nessie_print_set_vector(3,v);
+ for(i=0; i<((keysize_b+7)/8); ++i){
+ key[i]=(i+v)&0xff;
+ }
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ if(ivsize_b){
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ }
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ normal_block(&ctx);
+ scal_cipher_free(&ctx);
+ }
+ /*** Test SET 4 ***/
+ nessie_print_setheader(4);
+ for(v=0;v<4; ++v){
+ uint8_t i;
+ nessie_print_set_vector(4,v);
+ for(i=0; i<((keysize_b+7)/8); ++i){
+ key[i]=(i*0x53+v*5)&0xff;
+ }
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ if(ivsize_b){
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ }
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ long_block(&ctx);
+ scal_cipher_free(&ctx);
+ }
+ if(ivsize_b==0){ /* exit if there is no IV */
+ nessie_print_footer();
+ return;
+ }
+ /*** Test SET 5 ***/
+ nessie_print_setheader(5);
+ memset(key, 0, (keysize_b+7)/8);
+ for(v=0;v<ivsize_b; ++v){
+ nessie_print_set_vector(5,v);
+ iv[v/8] |= 0x80>>(v&7);
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ normal_block(&ctx);
+ scal_cipher_free(&ctx);
+ iv[v/8] = 0;
+ }
+ /*** Test SET 6 ***/
+ nessie_print_setheader(6);
+ for(v=0;v<4; ++v){
+ uint8_t i;
+ nessie_print_set_vector(6,v);
+ for(i=0; i<((keysize_b+7)/8); ++i){
+ key[i]=(i*0x53+v*5)&0xff;
+ }
+ for(i=0; i<((ivsize_b+7)/8); ++i){
+ iv[i]=(i*0x67+v*9+13)&0xff;
+ }
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ long_block(&ctx);
+ scal_cipher_free(&ctx);
+ }
+ /*** Test SET 7 ***/
+ nessie_print_setheader(7);
+ uint8_t u;
+ for(v=0;v<3; ++v){
+ for(u=0; u<3; ++u){
+ uint8_t i;
+ nessie_print_set_vector(7,v*3+u);
+ for(i=0; i<((keysize_b+7)/8); ++i){
+ key[i]=pgm_read_byte(list_of_keys+20*v+(i%20));
+ }
+ for(i=0; i<((ivsize_b+7)/8); ++i){
+ key[i]=pgm_read_byte(list_of_keys+4*u+(i%4));
+ }
+ }
+ nessie_print_item("key", key, (keysize_b+7)/8);
+ nessie_print_item("IV", iv, (ivsize_b+7)/8);
+ scal_cipher_init(desc, key, keysize_b, iv, ivsize_b, &ctx);
+ long_block(&ctx);
+ scal_cipher_free(&ctx);
+ }
+ nessie_print_footer();
+}
+
+void scal_nessie_run(const scdesc_t* desc){
+ uint16_t keysizes_count, ivsizes_count,i,j;
+ uint16_t *keysizes=NULL, *ivsizes=NULL;
+ keysizes_count = get_keysizes((PGM_VOID_P)pgm_read_word(&(desc->valid_keysize_desc)), &keysizes);
+ ivsizes_count = get_keysizes((PGM_VOID_P)pgm_read_word(&(desc->valid_ivsize_desc)), &ivsizes);
+ for(i=0; i<keysizes_count; ++i){
+ for(j=0; j<ivsizes_count; ++j){
+ scal_nessie_stream_run(desc, keysizes[i], ivsizes[j]);
+ }
+ }
+}
projects / avr-crypto-lib.git / blobdiff