Matsushita Electric Industrial Co., Ltd.

Prabir Bhattacharya

Hong Heather Yu

Gregory Michael Perkins

Mahfuzur Rahman

A data structure to be used for representing the problem is selected. An instance of the problem is represented with the data structure. The data is encrypted with a sequence which is obtained by solving the problem. Alternatively, in an alternative embodiment of the present invention, a program for heuristically solving an NP-hard problem is received. A data structure that represents an instance of the problem is received. The program is applied to the instance of the problem to obtain a sequence. The data is decrypted with the sequence.

Method and apparatus for protecting data

A remote computer access facility uses two dedicated computers outside the firewall. To ensure security the system makes use of biometrics features and a one-time password mechanism on top of secure socket layer (SSL) to authenticate a user. The system also provides three layers of security levels for transmission. The first layer establishes an SSL connection, the second layer periodically asks for a one-time password (OTP), and the third layer uses any kind of conventional encryption. The combination of the biometric, OTP and encryption key forms a strong password. The system also uses a mechanism for secure file accesses within the organization based on the security privileges assigned to various users. Based on the user's access privileges, the server side software module sends the requested file in an encrypted form along with the key to decrypt that file&#x2014;this key is encrypted by the user's strong password.

Architecture for secure remote access and transmission using a generalized password scheme with biometric features

A multilayer digital content protection system, particularly for a digital cinema application is provided. Detection of unauthorized activity at the time it is occurring is provided using a first protection layer. Two layers of imperceptible watermarks, one camcorder viewable and one camcorder invisible are inserted into unauthorized copies of the digital content with second and third protection layers. Strong near infrared is also used to degrade the quality of any attempted unauthorized recording of digital content using a camcorder.

Methods and apparatus for digital content protection

The user's fingerprint is analyzed by the pattern matching module which draws upon pre-stored fingerprint data that may be encrypted. The pattern matching module work in conjuntion with an authorization module and resource access module to ascertain a user's authorization level or security level and then give the user access to only those computer resources for which he or she has been granted authorization. The system preferably employs inter-modular encryption so that the system can be distributed across a network if desired.

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Plainsboro, NJ, United States of America

Prabir Bhattacharya