Apparatus for providing a secure processing environment
Patent 6385727 Issued on May 7, 2002. Estimated Expiration Date: 
September 25, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 25, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesIC card which can set security level for every memory area System for securing a data processing system and method of operation Tamper-proof data storage Patent #: 5467396 InventorsApplicationNo. 161150 filed on 09/25/1998US Classes:713/193, By stored data protection380/259, Symmetric key cryptography713/166, Security levels713/168, Particular communication authentication technique713/194Tamper resistantExaminersPrimary: Decady, AlbertAssistant: Callahan, Paul E. Attorney, Agent or FirmForeign Patent References
International ClassG06F 012/14AbstractAn apparatus for providing a secure processing environment is disclosed. In one embodiment, the apparatus includes a read/write memory for storing encrypted information. It also includes a processor, a cipherer and an authenticator. The cipherer is in communication with the read/write memory for receiving encrypted information therefrom and is configured to decrypt the encrypted information into decrypted information to be returned to the memory for subsequent use by the processor. The authenticator authenticates the decrypted information prior to use by the processor and re-authenticates the information prior to re-encryption by the cipherer. | |
