摘要:
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.
摘要:
We propose an encryption scheme which uses steganography. The encryption algorithm 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 requires 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. Therefore, the scheme's security is based on a new weak assumption base on the pseudo random generator which we introduce.
摘要:
A system and method for scheduling the receipt of desired movies and other forms of data from a network, which simultaneously distributes many sources of such data to many customers, as in a cable television system. Customer profiles are developed for the recipient describing how important certain characteristics of the broadcast video program, movie, or other data are to each customer. From these profiles, an "agreement matrix" is calculated by comparing the recipient's profiles to the actual profiles of the characteristics of the available video programs, movies, or other data. The agreement matrix thus characterizes the attractiveness of each video program, movie, or other data to each prospective customer. "Virtual" channels are generated from the agreement matrix to produce a series of video or data programming which will provide the greatest satisfaction to each customer. Feedback paths are also provided so that the customer's profiles and/or the profiles of the video programs or other data may be modified to reflect actual usage, and so that the data downloaded to the customer's set top terminal may be minimized. Kiosks are also developed which assist customers in the selection of videos, music, books, and the like in accordance with the customer's objective profiles.
摘要:
The Location Enhanced Information Deliver System Architecture (LEIA) customizes the information that is displayed to an information recipient based on optimizing a match between information purveyors, such as advertisers, and the information recipients who are local to an information delivery system. The present location enhanced information delivery system presents the information most suited to the real current audience, as measured by location information systems, rather than to a static predicted audience. While the preferred embodiment discloses a beaconing-style wireless technology, the system concept is easily extensible both to other location-information systems, such as license-plate scanning with cameras, and to utilizing the location-information for private displays of information in addition to public displays of information.
摘要:
A secure data interchange will allow pharmaceutical and biotechnological interests to securely share and profit from biochemical and biophysical data. The purpose of the interchange is to maintain the proprietary value of such data by guarding its exposure to other users while allowing some of its scientific value to be passed along. Specifically, users submit data in conjunction with, and conditional upon, various rules and conditions of use. The system itself, as a trusted third party, is supported by a diverse set of human and machine experts. When productive correlations and complementarities in different users' interests or data are detected, the information is passed back to the users in accordance with the desired level of transparency. Automated means are provided for data matching and selective determination of which particular data to release and to whom in view of the data's conditions of use ascribed. Efficient market exchange mechanisms are explored.
摘要:
The Location Enhanced Information Deliver System Architecture (LEIA) customizes the information that is displayed to an information recipient based on optimizing a match between information purveyors, such as advertisers, and the information recipients who are local to an information delivery system. The present location enhanced information delivery system presents the information most suited to the real current audience, as measured by location information systems, rather than to a static predicted audience. While the preferred embodiment discloses a beaconing-style wireless technology, the system concept is easily extensible both to other location-information systems, such as license-plate scanning with cameras, and to utilizing the location-information for private displays of information in addition to public displays of information.
摘要:
This document discloses the architecture and proposed application of a highly distributed network security system. Using a combination of intelligent client-side and server-side agents, redundant memory arrays, duplicate network connections, and a variety of statistical analytics, which are cleverly designed to anticipate, counteract and defeat likely strategic designs, behaviors and adaptations of these threats which may be intended to evade or even disable the network security system, this system serves to detect, prevent, and repair a wide variety of network intrusions.
摘要:
A system and method for scheduling the receipt of desired movies and other forms of data from a network which simultaneously distributes many sources of such data to many customers, as in a cable television system. Customer profiles are developed for the recipient describing how important certain characteristics of the broadcast video program, movie or other data are to each customer. From these profiles, an “agreement matrix” is calculated by comparing the recipient's profiles to the actual profiles of the characteristics of the available video programs, movies, or other data. The agreement matrix thus characterizes the attractiveness of each video program, movie, or other data to each prospective customer. “Virtual” channels are generated from the agreement matrix to produce a series of video or data programming which will provide the greatest satisfaction to each customer. Feedback paths are also provided so that the customer's profiles and/or the profiles of the video programs or other data may be modified to reflect actual usage. Kiosks are also developed which assist customers in the selection of videos, music, books, and the like in accordance with the customer's objective profiles.
摘要:
A system and method of presenting data from a plurality of data sources or objects which simultaneously distributes many sources of such data to many customers. Customer profiles are developed for the recipient describing how important certain characteristics of the data are to each customer. From these profiles, an “agreement matrix” is calculated by comparing the recipient's profiles to the actual profiles of the characteristics of the available data. The agreement matrix thus characterizes the attractiveness of each data to each prospective customer, and is used to produce a series of data which will provide the greatest satisfaction to each customer. The customer's profiles and/or the profiles of the data may be modified to reflect actual usage.
摘要:
A database system stores information about potential patients that allows medical professionals to gauge the legal risk presented by the potential patients, giving the medical professionals the opportunity to avoid medical involvement with those individuals most prone to engaging in unwarranted legal actions. The database may also be used by insurance companies, legal services and other professional service providers to screen for potentially litigious customers. Information in the database is processed to provide a risk assessment score for each patient that is used for screening purposes.