Recently, based on RSA and discrete logarithm with composite modulus, Huang and Chang proposed two multisignature schemes with distinguished signing authority and claimed that the...
Abstract. In this talk, I will review some of the work performed by the research community in cryptology and security since the invention of public key cryptography by Diffie and H...
This paper explains how to design fully secure RSA-type cryptosystems from schemes only secure against passive attacks, in the standard model. We rely on instance-independence assu...
A public key infrastructure is generally (and effectively) used for cryptographically secure authentication in the networks. Ad-hoc networks are formed in haphazard manner. Securi...
We present a new proposal for a trapdoor one-way function, from which we derive public-key encryption and digital signatures. The security of the new construction is based on the ...