Re: Standard for Feige-Fiat-Shamir

tomstdenis@xxxxxxxxx schrieb:
Simon Siemens wrote:
I want to use the Feige-Fiat-Shamir signature for a project. However I
cannot find a standard / specification that specifies the parameters and
encoding. Does anyone know such a standard (like rfc3447.txt / PKCS #1
for RSA)?

That'd be interesting to see. As far as I know there isn't one.

Any particular need for FFS or PKCS #1 or ANSI X9.62?


Hi Tom,

I need Feige-Fiat-Shamir as it is the fastest digital signing algorithm
I know (tried FFS, DSA, RSA, ECDSA). It should run on a weak embedded

When realizing the system it is always a could idea to use standards, as
other implementors can revert on it and reuse their knowledge and code.
And in the security area standards define some parameters of an
algorithm as they appear to be secure.

Basically I know that I have to transfer the signature itself together
with a certificate containing the sequence of public keys and the
modulus. How would you encode and transmit them?

Thanks, Simon

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