An Efficient Golden Ratio Method for Secure Cryptographic Applications

Secure Bio-Cryptographic Authentication System for Cardless Automated Teller Machines

Security is a vital issue in the usage of Automated Teller Machine (ATM) for cash, cashless and many off the counter banking transactions. Weaknesses in the use of ATM machine could not only lead to loss of customer’s data confidentiality and integrity but also breach in the verification of user’s authentication. Several challenges are associated with the use of ATM smart card such as: card clo...

Efficient Cryptographic Tools for Secure Distributed Computing

Efficient Cryptographic Tools for Secure Distributed Computing Aleksandr Yampolskiy 2006 This thesis presents a set of efficient and practical tools that can be used to enhance security of existing distributed systems. Our tools achieve marked improvements in bit, round, and communication complexity compared to generic multi-party solutions. We begin by introducing a new cryptographic primitive...

A Cryptographic Method for Secure Watermark Detection

We present a semi-public key implementation of quantization index modulation (QIM) watermarking called Secure QIM (SQIM). Given a signal, a watermark detector can learn the presence of an SQIM watermark without learning anything anything else from the detection process. The watermark detector first transforms the signal with a secret transform, unknown to the detector, and then quantizes the tr...

An Efficient Montgomery Exponentiation Algorithm for Cryptographic Applications

Efficient computation of the modular exponentiations is very important and useful for public-key cryptosystems. In this paper, an efficient parallel binary exponentiation algorithm is proposed which based on the Montgomery multiplication algorithm, the signed-digit-folding (SDF) and common-multiplicand-multiplicand (CMM) techniques. By using the CMM technique of computing the common part from t...

Secure and Efficient Implementations of Cryptographic Primitives