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R10499/gift-cofb/reference/generate_vectors.cpp
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generate_vectors.cpp
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#include <iostream>
#include <algorithm>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "api.h"
#include "gift128.h"
#include "encrypt.h"
void random_bytes(const size_t n, uint8_t *dest) {
for (int i = 0; i < n; i++) {
dest[i] = rand();
}
return;
}
void pad(uint8_t *input, const size_t in_len, uint8_t *output, const size_t out_len) {
for (int i = 0; i < in_len; i++) {
output[i] = input[i];
}
if (in_len % 16 != 0) {
output[in_len] = 0x80;
for (int i =in_len+1; i < out_len; i++) {
output[i] = 0;
}
}
return;
}
void output(int index, size_t ad_bytes, size_t msg_bytes, int partial_ad, int partial_msg,
uint8_t key[16],uint8_t nonce[16], uint8_t *ad, uint8_t *msg,
uint8_t *cipher) {
size_t ad_blocks = (ad_bytes / 16);
size_t msg_blocks = (msg_bytes / 16);
printf("%d %d %d %d %d\n", index, ad_blocks, msg_blocks, partial_ad, partial_msg);
for (int i = 0; i < 16; i++) {
printf("%02X", key[i]);
}
putchar('\n');
for (int i = 0; i < 16; i++) {
printf("%02X", nonce[i]);
}
putchar('\n');
for (int b = 0; b < ad_blocks; b++) {
for (int i = b*16; i < (b+1)*16; i++) {
printf("%02X", ad[i]);
}
putchar('\n');
}
for (int b = 0; b < msg_blocks; b++) {
for (int i = b*16; i < (b+1)*16; i++) {
printf("%02X", msg[i]);
}
putchar(' ');
for (int i = b*16; i < (b+1)*16; i++) {
printf("%02X", cipher[i]);
}
putchar('\n');
}
for (int i = msg_bytes; i < msg_bytes+16; i++) {
printf("%02X", cipher[i]);
}
putchar('\n');
}
int main(int argc, char **argv) {
srand (time(NULL));
//uint8_t k[16] = {0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
//uint8_t n[16] = {0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
////uint8_t k[16] = {0xf, 0xe, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0};
////uint8_t n[16] = {0xf, 0xe, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0};
//uint8_t ad[16] = {0x0, 0x1, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
//uint8_t msg[16] = {0x0, 0x1, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
//uint8_t ad[16] = {0};
////uint8_t msg[16] = {0xf, 0xe, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0};
//uint8_t msg[16] = {0};
//std::reverse(std::begin(k), std::end(k));
//std::reverse(std::begin(n), std::end(n));
//std::reverse(std::begin(ad), std::end(ad));
//std::reverse(std::begin(msg), std::end(msg));
//uint8_t c[32] = {0};
//cofb_encrypt(c, k, n, ad, 3, msg, 3);
////////giftb128(msg, k, c);
//for (int i = 0; i < 16; i++) {
// printf("%02X", c[i]);
//}
//putchar('\n');
//for (int i = 16; i < 32; i++) {
// printf("%02X", c[i]);
//}
//putchar('\n');
//
//uint8_t vec[16];
//for (int i = 0; i < 1000; i++) {
// random_bytes(16, vec);
// for (int j = 0; j < 16; j++) {
// printf("%02X", vec[j]);
// }
// putchar('\n');
//}
//argv++;
//int n = atoi(argv[0]);
//int num_ad = atoi(argv[1]);
//int num_msg = atoi(argv[2]);
//size_t ad_size = 16*num_ad;
//size_t msg_size = 16*num_msg;
//size_t cipher_size = msg_size+16;
for (int i = 0; i < 1000; i++) {
uint8_t key[16]; random_bytes(16, key);
uint8_t nonce[16]; random_bytes(16, nonce);
uint16_t ad_bytes = 16;//rand() % 49;
uint16_t msg_bytes = 16;//rand() % 49;
//printf("%d %d\n", ad_bytes, msg_bytes);
uint8_t ad[ad_bytes]; random_bytes(ad_bytes, ad);
uint8_t msg[msg_bytes]; random_bytes(msg_bytes, msg);
//printf("ad ");
//for (int j = 0; j < ad_bytes; j++) {
// printf("%02X", ad[j]);
//}
//putchar('\n');
//for (int j = 0; j < msg_bytes; j++) {
// printf("%02X", msg[j]);
//}
//putchar('\n');
int partial_ad = (ad_bytes % 16 == 0) ? 0 : 1;
int partial_msg = (msg_bytes % 16 == 0) ? 0 : 1;
uint16_t ad_size = partial_ad ? (ad_bytes + (16 - (ad_bytes % 16))) : ad_bytes;
uint16_t msg_size = partial_msg ? (msg_bytes + (16 - (msg_bytes % 16))) : msg_bytes;
//printf("%d %d\n", ad_size, msg_size);
uint8_t ad_pad[ad_size]; pad(ad, ad_bytes, ad_pad, ad_size);
uint8_t msg_pad[msg_size]; pad(msg, msg_bytes, msg_pad, msg_size);
//printf("ad pad ");
//for (int j = 0; j < ad_size; j++) {
// printf("%02X", ad_pad[j]);
//}
//putchar('\n');
uint8_t cipher[16 + msg_size];
memset(cipher, 0, 16+msg_size);
cofb_encrypt(cipher, key, nonce, ad, ad_bytes, msg, msg_bytes);
//printf("============\n");
//for (int j = msg_size; j < msg_size+16; j++) {
// printf("%02X", cipher[j]);
//}
//putchar('\n');
output(i, ad_size, msg_size, partial_ad, partial_msg, key, nonce, ad_pad, msg_pad, cipher);
}
return 0;
}
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