# Certificateless Signature

Consider the following scenario:

There are two users: A and B. Users A and B generate a pair of their own public and private keys PUBa, PRIa and PUBb, PRIb. There is one trusted center(TC) that provides authenticity to public keys of user A and B.

When user A wants to communicate with user B, user A asks for public key of user B via TC. TC will provide user B's public key to user A with the help of Diffie-Hellman Algorithm. Both users can generate their shared secret key for communication, and for knowing whether the both parties are intended or not, they will use the DSS algorithm.

If I use this technique, is it possible to apply a Certificateless Signature Scheme?

Any hints towards guidelines, references, or papers are much appreciated…

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closely related: Certificateless cryptography. Indeed, the beginning of this question sounds like this is a continuation of that on, in which case it might be better off as an edit? –  figlesquidge Nov 7 '13 at 12:14
I do not see how this scenario is specifically related to certificateless signatures. –  DrLecter Nov 7 '13 at 15:51
Since I am beginner for these concepts, I got above question in my mind. So,Please explain why this scenario does not seems related to Certificateless signature..? so that I will be able to move further ahead. –  Ravi Nov 7 '13 at 17:11
I'm not clear on what a "Certificateless Signature Scheme" would even be. $\hspace{1.88 in}$ –  Ricky Demer Nov 8 '13 at 2:26