From: couturier Date: Mon, 20 Jun 2022 14:19:19 +0000 (+0200) Subject: new X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/commitdiff_plain/2cb56ac774844914304d141d67b1a94f34a0739a?ds=sidebyside;hp=c99f2da0860fd162f7a1a413f4ac3ce0ebf7113f new --- diff --git a/Grain-128AEAD-sw-ref/Makefile b/Grain-128AEAD-sw-ref/Makefile deleted file mode 100644 index eae07f0..0000000 --- a/Grain-128AEAD-sw-ref/Makefile +++ /dev/null @@ -1,30 +0,0 @@ - -CC = gcc -#CFLAGS = -std=c99 -Wall -Wextra -Wshadow -O3 #-fsanitize=address,undefined -O2 - -uname_m := $(shell uname -m) -ifeq ($(uname_m),armv7l) -CFLAGS=-O3 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -lrt `pkg-config --cflags --libs glib-2.0` -else -ifeq ($(uname_m),armv6l) -CFLAGS=-O3 -march=armv6 -mfpu=vfp -mfloat-abi=hard -lrt `pkg-config --cflags --libs glib-2.0` -else -CFLAGS=-O3 `pkg-config --cflags --libs glib-2.0` -endif -endif - - - - -all: grain128aead - -init: CFLAGS += -DINIT -init: grain128aead - -pre: CFLAGS += -DPRE -pre: grain128aead - -grain128a: grain128a.c - -clean: - rm -f grain128aead diff --git a/Grain-128AEAD-sw-ref/grain128aead.c b/Grain-128AEAD-sw-ref/grain128aead.c deleted file mode 100644 index 9a0734b..0000000 --- a/Grain-128AEAD-sw-ref/grain128aead.c +++ /dev/null @@ -1,360 +0,0 @@ -#include -#include -#include - -#include "grain128aead.h" -#include -#include - - - - - - - -/* - * Define "PRE" to print the pre-output instead of keystream. - * Define "INIT" to also print the bits during the initialization part. - * Do this either here or during compilation with -D flag. - */ - -uint8_t grain_round; - - -double TimeStart() -{ - struct timeval tstart; - gettimeofday(&tstart,0); - return( (double) (tstart.tv_sec + tstart.tv_usec*1e-6) ); -} - -double TimeStop(double t) -{ - struct timeval tend; - - gettimeofday(&tend,0); - t = (double) (tend.tv_sec + tend.tv_usec*1e-6) - t; - return (t); -} - - -void init_grain(grain_state *grain, uint8_t *key, uint8_t *iv) -{ - // expand the packed bytes and place one bit per array cell (like a flip flop in HW) - for (int i = 0; i < 12; i++) { - for (int j = 0; j < 8; j++) { - grain->lfsr[8 * i + j] = (iv[i] & (1 << (7-j))) >> (7-j); - - } - } - - for (int i = 96; i < 127; i++) { - grain->lfsr[i] = 1; - } - - grain->lfsr[127] = 0; - - for (int i = 0; i < 16; i++) { - for (int j = 0; j < 8; j++) { - grain->nfsr[8 * i + j] = (key[i] & (1 << (7-j))) >> (7-j); - } - } - - for (int i = 0; i < 64; i++) { - grain->auth_acc[i] = 0; - grain->auth_sr[i] = 0; - } -} - -void init_data(grain_data *data, uint8_t *msg, uint32_t msg_len) -{ - // allocate enough space for message, including the padding byte, 0x80 - data->message = (uint8_t *) calloc(msg_len+8,1);//8 * STREAM_BYTES + 8, 1); - for (uint32_t i = 0; i < msg_len; i++) { - data->message[i] = msg[i]; - } - - // always pad data with the byte 0x80 - data->message[msg_len] = 1; -} - -uint8_t next_lfsr_fb(grain_state *grain) -{ - /* f(x) = 1 + x^32 + x^47 + x^58 + x^90 + x^121 + x^128 */ - return grain->lfsr[96] ^ grain->lfsr[81] ^ grain->lfsr[70] ^ grain->lfsr[38] ^ grain->lfsr[7] ^ grain->lfsr[0]; -} - -uint8_t next_nfsr_fb(grain_state *grain) -{ - return grain->nfsr[96] ^ grain->nfsr[91] ^ grain->nfsr[56] ^ grain->nfsr[26] ^ grain->nfsr[0] ^ (grain->nfsr[84] & grain->nfsr[68]) ^ - (grain->nfsr[67] & grain->nfsr[3]) ^ (grain->nfsr[65] & grain->nfsr[61]) ^ (grain->nfsr[59] & grain->nfsr[27]) ^ - (grain->nfsr[48] & grain->nfsr[40]) ^ (grain->nfsr[18] & grain->nfsr[17]) ^ (grain->nfsr[13] & grain->nfsr[11]) ^ - (grain->nfsr[82] & grain->nfsr[78] & grain->nfsr[70]) ^ (grain->nfsr[25] & grain->nfsr[24] & grain->nfsr[22]) ^ - (grain->nfsr[95] & grain->nfsr[93] & grain->nfsr[92] & grain->nfsr[88]); -} - -uint8_t next_h(grain_state *grain) -{ - // h(x) = x0x1 + x2x3 + x4x5 + x6x7 + x0x4x8 - #define x0 grain->nfsr[12] // bi+12 - #define x1 grain->lfsr[8] // si+8 - #define x2 grain->lfsr[13] // si+13 - #define x3 grain->lfsr[20] // si+20 - #define x4 grain->nfsr[95] // bi+95 - #define x5 grain->lfsr[42] // si+42 - #define x6 grain->lfsr[60] // si+60 - #define x7 grain->lfsr[79] // si+79 - #define x8 grain->lfsr[94] // si+94 - - uint8_t h_out = (x0 & x1) ^ (x2 & x3) ^ (x4 & x5) ^ (x6 & x7) ^ (x0 & x4 & x8); - return h_out; -} - -uint8_t shift(uint8_t fsr[128], uint8_t fb) -{ - uint8_t out = fsr[0]; - for (int i = 0; i < 127; i++) { - fsr[i] = fsr[i+1]; - } - fsr[127] = fb; - - return out; -} - -void auth_shift(uint8_t sr[64], uint8_t fb) -{ - for (int i = 0; i < 63; i++) { - sr[i] = sr[i+1]; - } - sr[63] = fb; -} - -void accumulate(grain_state *grain) -{ - for (int i = 0; i < 64; i++) { - grain->auth_acc[i] ^= grain->auth_sr[i]; - } -} - -uint8_t next_z(grain_state *grain, uint8_t keybit) -{ - uint8_t lfsr_fb = next_lfsr_fb(grain); - uint8_t nfsr_fb = next_nfsr_fb(grain); - uint8_t h_out = next_h(grain); - - /* y = h + s_{i+93} + sum(b_{i+j}), j \in A */ - uint8_t A[] = {2, 15, 36, 45, 64, 73, 89}; - - uint8_t nfsr_tmp = 0; - for (int i = 0; i < 7; i++) { - nfsr_tmp ^= grain->nfsr[A[i]]; - } - - uint8_t y = h_out ^ grain->lfsr[93] ^ nfsr_tmp; - - uint8_t lfsr_out; - - /* feedback y if we are in the initialization instance */ - if (grain_round == INIT) { - lfsr_out = shift(grain->lfsr, lfsr_fb ^ y); - shift(grain->nfsr, nfsr_fb ^ lfsr_out ^ y); - } else if (grain_round == FP1) { - lfsr_out = shift(grain->lfsr, lfsr_fb ^ keybit); - shift(grain->nfsr, nfsr_fb ^ lfsr_out); - } else if (grain_round == NORMAL) { - lfsr_out = shift(grain->lfsr, lfsr_fb); - shift(grain->nfsr, nfsr_fb ^ lfsr_out); - } - - return y; -} - -void print_state(grain_state *grain) -{ - printf("LFSR: "); - for (int i = 0; i < 128; i++) { - printf("%d", grain->lfsr[i]); - } - printf("\nNFSR: "); - for (int i = 0; i < 128; i++) { - printf("%d", grain->nfsr[i]); - } - printf("\n"); -} - -void print_stream(uint8_t *stream, uint8_t byte_size) -{ - for (int i = 0; i < byte_size; i++) { - uint8_t yi = 0; - for (int j = 0; j < 8; j++) { - yi = (yi << 1) ^ stream[i * 8 + j]; - } - printf("%02x", yi); - } - printf("\n"); -} - -void generate_keystream(grain_state *grain, grain_data *data, uint8_t *key) -{ - grain_round = FP1; - - uint8_t key_idx = 0; - /* inititalize the accumulator and shift reg. using the first 64 bits */ - for (int i = 0; i < 8; i++) { - for (int j = 0; j < 8; j++) { - uint8_t fp1_fb = (key[key_idx] & (1 << (7-j))) >> (7-j); - grain->auth_acc[8 * i + j] = next_z(grain, fp1_fb); - } - key_idx++; - } - - for (int i = 0; i < 8; i++) { - for (int j = 0; j < 8; j++) { - uint8_t fp1_fb = (key[key_idx] & (1 << (7-j))) >> (7-j); - grain->auth_sr[8 * i + j] = next_z(grain, fp1_fb); - } - key_idx++; - } - - grain_round = NORMAL; - - /* printf("accum init:\t"); - print_stream(grain->auth_acc, 8); - - printf("register init:\t"); - print_stream(grain->auth_sr, 8); - */ - uint8_t ks[STREAM_BYTES * 8]; // keystream array - uint16_t ks_cnt = 0; - uint8_t ms[STREAM_BYTES * 8]; // macstream array - uint16_t ms_cnt = 0; - uint8_t pre[2 * STREAM_BYTES * 8]; // pre-output - uint16_t pre_cnt = 0; - - /* generate keystream */ - for (int i = 0; i < STREAM_BYTES; i++) { - /* every second bit is used for keystream, the others for MAC */ - for (int j = 0; j < 16; j++) { - uint8_t z_next = next_z(grain, 0); - if (j % 2 == 0) { - ks[ks_cnt] = z_next; - ks_cnt++; - } else { - ms[ms_cnt] = z_next; - if (data->message[ms_cnt] == 1) { - accumulate(grain); - } - auth_shift(grain->auth_sr, z_next); - ms_cnt++; - } - pre[pre_cnt++] = z_next; // pre-output includes all bits - } - } - - /* printf("pre-output:\t"); - print_stream(pre, 2 * STREAM_BYTES); - - printf("keystream:\t"); - print_stream(ks, STREAM_BYTES); - - printf("macstream:\t"); - print_stream(ms, STREAM_BYTES); - - printf("tag:\t\t"); - print_stream(grain->auth_acc, 8); - */ -} - - -int main(int argc, char** argv) -{ - grain_state grain; - grain_data data; - - //uint8_t key[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0}; - //uint8_t iv[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0x12, 0x34, 0x56, 0x78}; - - - uint8_t key[] = {0x81, 0x27, 0x73, 0x35, 0x11, 0xe9, 0x4c, 0x32, 0x9f, 0x77, 0x1f, 0xe8, 0x31, 0xec, 0x95, 0x55}; - uint8_t iv[] = {0xcc, 0xb5, 0x2f, 0xe4, 0x3e, 0x68, 0xc4, 0x5e, 0x78, 0xb1, 0x96, 0xb2}; - - //uint8_t key[16] = { 0 }; - //uint8_t iv[12] = { 0 }; - //iv[0] = 0x80; - - //uint8_t msg[0]; - //uint8_t msg[8] = {0, 0, 0, 0, 0, 0, 0, 0}; - //uint8_t msg[8] = {1, 0, 0, 0, 0, 0, 0, 0}; - //uint8_t msg[8] = {0, 0, 0, 0, 0, 0, 0, 1}; - - int size_buf=1; - int nb_test=1; - - for(int i=1; i