Other

Pinpoint, Incorporated

Sampath Kannan

Frederick S M Herz

Craig Martell

Yael Gertner

Walter Paul Labys

Jason M Eisner

David C Parkes

A system for exchanging data includes a communication system, a first and a second party connected to the communication system, wherein each party has personal data, and each party has a disclosure policy to control dissemination of its data, and a secure intermediate party connected to the communication system, wherein the secure intermediate party exchanges data between the first and second parties in accordance with their respective disclosure policies.

Secure data interchange

An encryption scheme that uses steganography includes an encryption algorithm that encrypts messages by embedding them in a data stream in such a way that an adversary cannot get information about the messages. Since the embedding is the only computation required, this scheme is optimal in computational efficiency. However, since the size of the data stream is large, this scheme is most beneficial when the cost of bandwidth is less expensive than the cost of computation. The scheme embeds the message as specified by a pseudo random generator.

System and method for encrypting data in pictorial data

We propose a multi user information theoretically secure scheme. Our scheme allows any two parties in a multi user system to exchange messages securely using encryption, and to sign messages. Our scheme achieves a significant saving in the number of total keys in the system and in the keys each user must store. The encryption, and signing algorithms proposed in the scheme are as efficient as possible. Our scheme is designed so that it is possible to easily and efficiently revoke and add membership of new users into the system. It is also designed so that authentication and security against man in the middle attacks can be added at low cost. In addition, we introduce a novel and efficient way to use steganography for key replenishment.

System and method which employs a multi user secure scheme utilizing shared keys

Growing community of inventors

Philadelphia, PA, United States of America

Sampath Kannan