Lamport Signature

In Part 1 we introduced SPHINCS+ as a tower built entirely from hash-based ideas.

Now we start from the very first block…
Lamport Signatures

In 1979, Leslie Lamport had a simple idea:

📄 Original Paper (1979)

This was the first hash-based signature.

But how does it work?

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👉 FORS (Forest of Random Subsets)

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