internal static void gen_chain(HashFunctions hs, byte[] output, int outOff, byte[] seed, int seedOff, byte[] masks, int masksOff, int chainlen)
{
int i, j;
for (j = 0; j < HASH_BYTES; j++)
{
output[j + outOff] = seed[j + seedOff];
}
for (i = 0; i < chainlen && i < WOTS_W; i++)
{
hs.hash_n_n_mask(output, outOff, output, outOff, masks, masksOff + (i * HASH_BYTES));
}
}