mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-12-23 18:05:39 +00:00
107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
|
|
seed: 32 random bytes
|
|
sk: sha512(seed)
|
|
sk[0] &= 248
|
|
sk[31] &= 127
|
|
sk[31] |= 64
|
|
|
|
pk: scalarmult_ed25519_base(sk)
|
|
|
|
|
|
increment seed
|
|
generate sk
|
|
generate pk
|
|
hash = sha512(mypub)
|
|
|
|
if besthash:
|
|
bestseed = seed
|
|
bestseckey = sk
|
|
bestpubkey = pk
|
|
besthash = hash
|
|
*/
|
|
|
|
#include "yggdrasil-brute.h"
|
|
|
|
|
|
int main(int argc, char **argv) {
|
|
int i;
|
|
int j;
|
|
time_t starttime;
|
|
time_t requestedtime;
|
|
|
|
unsigned char bestsklist[NUMKEYS][64]; /* sk contains pk */
|
|
unsigned char besthashlist[NUMKEYS][64];
|
|
|
|
unsigned char seed[32];
|
|
unsigned char sk[64];
|
|
unsigned char pk[32];
|
|
unsigned char hash[64];
|
|
|
|
unsigned int runs = 0;
|
|
int where;
|
|
|
|
if (argc != 2) {
|
|
fprintf(stderr, "usage: ./yggdrasil-brute-multi-curve25519 <seconds>\n");
|
|
return 1;
|
|
}
|
|
|
|
if (sodium_init() < 0) {
|
|
/* panic! the library couldn't be initialized, it is not safe to use */
|
|
printf("sodium init failed!\n");
|
|
return 1;
|
|
}
|
|
|
|
starttime = time(NULL);
|
|
requestedtime = atoi(argv[1]);
|
|
|
|
if (requestedtime < 0) requestedtime = 0;
|
|
fprintf(stderr, "Searching for yggdrasil ed25519 keys (this will take slightly longer than %ld seconds)\n", requestedtime);
|
|
|
|
sodium_memzero(bestsklist, NUMKEYS * 64);
|
|
sodium_memzero(besthashlist, NUMKEYS * 64);
|
|
randombytes_buf(seed, 32);
|
|
|
|
do {
|
|
/* generate pubkey, hash, compare, increment secret.
|
|
* this loop should take 4 seconds on modern hardware */
|
|
for (i = 0; i < (1 << 17); ++i) {
|
|
++runs;
|
|
crypto_hash_sha512(sk, seed, 32);
|
|
|
|
if (crypto_scalarmult_ed25519_base(pk, sk) != 0) {
|
|
printf("scalarmult to create pub failed!\n");
|
|
return 1;
|
|
}
|
|
memcpy(sk + 32, pk, 32);
|
|
|
|
crypto_hash_sha512(hash, pk, 32);
|
|
|
|
/* insert into local list of good key */
|
|
where = find_where(hash, besthashlist);
|
|
if (where >= 0) {
|
|
insert_64(bestsklist, sk, where);
|
|
insert_64(besthashlist, hash, where);
|
|
randombytes_buf(seed, 32);
|
|
}
|
|
for (j = 1; j < 31; ++j) if (++seed[j]) break;
|
|
}
|
|
} while (time(NULL) - starttime < requestedtime || runs < NUMKEYS);
|
|
|
|
fprintf(stderr, "!! Secret key is seed concatenated with public !!\n");
|
|
fprintf(stderr, "---hash--- ------------------------------seed------------------------------ -----------------------------public-----------------------------\n");
|
|
for (i = 0; i < NUMKEYS; ++i) {
|
|
for (j = 0; j < 5; ++j) printf("%02x", besthashlist[i][j]);
|
|
printf(" ");
|
|
for (j = 0; j < 32; ++j) printf("%02x", bestsklist[i][j]);
|
|
printf(" ");
|
|
for (j = 32; j < 64; ++j) printf("%02x", bestsklist[i][j]);
|
|
printf("\n");
|
|
}
|
|
|
|
sodium_memzero(bestsklist, NUMKEYS * 64);
|
|
sodium_memzero(sk, 64);
|
|
sodium_memzero(seed, 32);
|
|
|
|
return 0;
|
|
}
|