# Fiat-Shamir signature

I have a question about Fiat-Shamir signature:

A hash function is h(w)=w mod 2011 and w1=2623, w2=3269, w3=1938.

What is h=? and how to determine k.t bits?

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No, you are supposed to use a cryptographic hash function. $h(w) = w \bmod 2011$ is not a cryptographically strong hash function; it's not suitable for use with Fiat-Shamir signatures. – D.W. Nov 14 '12 at 3:31
Welcome to cryptography Stack Exchange. Your question was migrated here, because it is mainly about the theoretical parts of cryptography, not the application thereof (which would be on topic on Security Stack Exchange). Please register your account on both sites (using the same mail address) to take ownership of your question again, be able to edit, comment and accept an answer. – Paŭlo Ebermann Nov 14 '12 at 19:12
Also, could you please indicate the source of your text included as an image? – Paŭlo Ebermann Nov 14 '12 at 19:13