Cheehang Park

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This paper presents a new method for a visual cryptography scheme that uses phase masks and an interferometer. To encrypt a binary image, we divided it into an arbitrary number of slides and encrypted them using an XOR process with a random key or keys. The phase mask for each encrypted image was fabricated under the proposed phase-assignment rule. For(More)
Current Grid Security Infrastructure using PKI based on SSO. Trust is hard to establish in a service-oriented grid architecture because of the need to support end user SSO and dynamic transient service. Open Grid Service (OGS) Security Infrastructure in Global Grid Forum will extend use of Grid system or services up to business area using XML Web Service(More)
Active networks represent a new approach to network architecture. Active networks provide a much more flexible network infrastructure than traditional networks do. Flexibility is a powerful merit of active networks, but it can raise considerable security problems. Current active network researches have applied diverse techniques to solve them. Cryptographic(More)
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