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07/19/07 | 27 views | #20070165859 | Prev - Next | USPTO Class 380 | About this Page  380 rss/xml feed  monitor keywords

Multiple level access system

USPTO Application #: 20070165859
Title: Multiple level access system
Abstract: A method of securing an object at an access level includes selecting a profile for a user, including a credential having an encrypted credential public key, an encrypted credential public key encryption key, and a multiple-level access identifier. A working key is generated by binding a domain value with a random value. The object is encrypted with the working key. A random value encryption key is generated based on the shared value by decrypting the credential public key encryption key with the profile key encryption key, decrypting the credential public key with the credential public key encryption key, generating an ephemeral key pair, and generating a shared value based on the ephemeral private key and the credential public key. The random value is encrypted with the random value encryption key, and the encrypted object, the ephemeral public key, and the encrypted random value are provided for an authorized recipient. (end of abstract)
USPTO Applicaton #: 20070165859 - Class: 380255000 (USPTO)
Related Patent Categories: Cryptography, Communication System Using Cryptography

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Previous Patent Application:
Pre-expiration purging of authentication key contexts
Next Patent Application:
Method for issuing ic card storing encryption key information
Industry Class:
Cryptography

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