Questions tagged [winternitz]

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Credits for the Pub/private key pair generation design in IOTA

I have understood that IOTA uses a constant Seed and a variable index to generate Winternitz private and keys, to sign transactions. PK^-1 = Hash (Seed + index) So we can have practically endless PK ...
3
votes
1answer
906 views

IOTA Winternitz Signature Scheme Details

IOTA uses Winternitz one time signature scheme (W-OTS). Page no 45 W-OTS uses one-way function f and cryptographic hash function g. W-OTS selects parameter w > = 2, which is number of bits to be ...
1
vote
1answer
77 views

What is the “main” reason for using Winternitz signatures? [duplicate]

What is the primary reason the developers chose Winternitz signatures?
4
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2answers
500 views

How to get iota out of an address that has already been used twice?

Is it possible to get IOTAs safely out of an address from which two or more transactions were made already? With safely I mean that there is no chance to get hacked if the third or later transaction ...
5
votes
1answer
713 views

Why does IOTA use Winternitz signatures?

I found this on the Wikipedia IOTA article: IOTA uses Winternitz hash-based cryptography signatures instead of elliptic curve cryptography (ECC).[30][31] Hash-based signatures are much faster than ...
7
votes
2answers
329 views

Address re-use and snapshot

If an address was used more than once to spend, as was the case in the September claim, are addresses that were weakened for violating the Winternitz, One Time Signiture architecture of the tangle, ...
7
votes
1answer
485 views

Can someone explain very simplified how the Winternitz OTS/Lamport OTS works?

I read the Wiki example, but I am still confused to be honest. Could someone provide a really simple example?