mirror of
https://github.com/yggdrasil-network/yggdrasil-go
synced 2024-09-19 17:20:19 +03:00
106 lines
2.5 KiB
C
106 lines
2.5 KiB
C
/*
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sk: 32 random bytes
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sk[0] &= 248;
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sk[31] &= 127;
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sk[31] |= 64;
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increment sk
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pk = curve25519_scalarmult_base(mysecret)
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hash = sha512(pk)
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if besthash:
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bestsk = sk
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besthash = hash
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*/
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#include "yggdrasil-brute.h"
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void seed(unsigned char sk[32]) {
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randombytes_buf(sk, 32);
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sk[0] &= 248;
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sk[31] &= 127;
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sk[31] |= 64;
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}
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int main(int argc, char **argv) {
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int i;
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int j;
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unsigned char addr[16];
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time_t starttime;
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time_t requestedtime;
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unsigned char bestsklist[NUMKEYS][32];
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unsigned char bestpklist[NUMKEYS][32];
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unsigned char besthashlist[NUMKEYS][64];
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unsigned char sk[32];
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unsigned char pk[32];
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unsigned char hash[64];
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unsigned int runs = 0;
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int where;
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if (argc != 2) {
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fprintf(stderr, "usage: ./yggdrasil-brute-multi-curve25519 <seconds>\n");
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return 1;
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}
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if (sodium_init() < 0) {
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/* panic! the library couldn't be initialized, it is not safe to use */
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printf("sodium init failed!\n");
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return 1;
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}
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starttime = time(NULL);
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requestedtime = atoi(argv[1]);
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if (requestedtime < 0) requestedtime = 0;
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fprintf(stderr, "Searching for yggdrasil curve25519 keys (this will take slightly longer than %ld seconds)\n", requestedtime);
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sodium_memzero(bestsklist, NUMKEYS * 32);
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sodium_memzero(bestpklist, NUMKEYS * 32);
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sodium_memzero(besthashlist, NUMKEYS * 64);
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seed(sk);
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do {
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/* generate pubkey, hash, compare, increment secret.
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* this loop should take 4 seconds on modern hardware */
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for (i = 0; i < (1 << 16); ++i) {
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++runs;
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if (crypto_scalarmult_curve25519_base(pk, sk) != 0) {
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printf("scalarmult to create pub failed!\n");
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return 1;
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}
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crypto_hash_sha512(hash, pk, 32);
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where = find_where(hash, besthashlist);
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if (where >= 0) {
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insert_32(bestsklist, sk, where);
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insert_32(bestpklist, pk, where);
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insert_64(besthashlist, hash, where);
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seed(sk);
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}
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for (j = 1; j < 31; ++j) if (++sk[j]) break;
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}
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} while (time(NULL) - starttime < requestedtime || runs < NUMKEYS);
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fprintf(stderr, "--------------addr-------------- -----------------------------secret----------------------------- -----------------------------public-----------------------------\n");
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for (i = 0; i < NUMKEYS; ++i) {
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make_addr(addr, besthashlist[i]);
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for (j = 0; j < 16; ++j) printf("%02x", addr[j]);
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printf(" ");
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for (j = 0; j < 32; ++j) printf("%02x", bestsklist[i][j]);
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printf(" ");
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for (j = 0; j < 32; ++j) printf("%02x", bestpklist[i][j]);
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printf("\n");
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}
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sodium_memzero(bestsklist, NUMKEYS * 32);
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sodium_memzero(sk, 32);
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return 0;
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}
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