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Add checkpointing support for passphrases

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scribblemaniac
2021-10-15 22:53:53 -06:00
parent ff3873965f
commit 2a4afad91a
5 changed files with 67 additions and 2 deletions
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23
worker_batch_pass.inc.h
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@@ -36,18 +36,39 @@ void *worker_batch_pass(void *task)
sname = makesname();
// load checkpoint
pthread_mutex_lock(&determseed_mutex);
for (int i = 0; i < SEED_LEN; i++)
determseed[i] += checkpoint[i];
pthread_mutex_unlock(&determseed_mutex);
initseed:
#ifdef STATISTICS
++st->numrestart.v;
#endif
pthread_mutex_lock(&determseed_mutex);
for (int i = 0; i < SEED_LEN; i++)
for (int i = 0; i < SEED_LEN; i++) {
++checkpoint[i];
if (++determseed[i])
break;
}
memcpy(seed, determseed, SEED_LEN);
pthread_mutex_unlock(&determseed_mutex);
if (checkpointfile) {
FILE *checkout = fopen(checkpointfile, "w");
if (!checkout) {
fprintf(stderr,"cannot open checkpoint file for writing\n");
exit(1);
}
if(fwrite(checkpoint, 1, SEED_LEN, checkout) != SEED_LEN) {
fprintf(stderr,"cannot write to checkpoint file\n");
exit(1);
}
fclose(checkout);
}
ed25519_seckey_expand(sk,seed);
ge_scalarmult_base(&ge_public,sk);