This paper deals with new problems which arise in the application of cryptography to computer commu-nication systems with large numbers of users. Fore-most among these is the key distribution problem. We suggest two techniques for dealing with this problem. The first employs current technology

Cryptographic techniques, such as encipherment, digital signatures, key management and secret sharing schemes, are important building blocks in the implementation of all security services. In this thesis, we present a general model for online secret sharing schemes and investigate the design

Abstract — Cryptography is essential for the security and integrity of the data that is stored in the cloud. Several cryptographic techniques are used to protect the integrity of data for various applications. A particular security method makes use of different cryptographic techniques to encrypt

Statistical data protection is a broad concept that encompasses all aspects of the protection of confidential statistical data. Statistical... This paper identifies some of these problems and sketches cryptographic solutions for them.

In many published authentication protocols, the cryptographic services are coarsely specified in that, whenever needed, a uniform notation is used to denote them while the exact nature of protection required is left unclear. In this paper we reason that such a coarse treatment not only forms a

Cryptography is the study of cryptographic algorithms that include encryption and decryption both. The importance of cryptography is discussed. The problem statement here is, to form a cryptographic algorithm that uses randomization. Usage of high amount of randomization makes it tougher for one

is used to serve this purpose. Cryptography is a technique to protect message by transforming it into an unreadable format called cipher text. It provides authentication, identification to user data, confidentiality and also provides security and privacy to the data stored. The main objective

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Abstract: Security based on cryptographic techniques is commonly used in many applications from many fields. Using security based on cryptographic techniques in remote control systems is certainly a subject of great interest. This paper will try to bring some points of view on the security

Research in secure distributed computation, which was done as part of a larger body of research in the theory of cryptography, has achieved remarkable results. It was shown that non-trusting parties can jointly compute functions of their different inputs while ensuring that no party learns anything but the defined output of the function. These results were shown using generic constructions that can be applied to any function that has an ecient representation as a circuit. We describe these results, discuss their efficiency, and demonstrate their relevance to privacy preserving computation of data mining algorithms. We also show examples of secure computation of data mining algorithms that use these generic constructions.