Apparatus for providing cryptographic support in a network

Details Apparatus for providing cryptographic support in a network Apparatus for providing cryptographic support in a network

1993-11-12

1994-07-12

Shaw, Dale M.

395200, G06F 1502

Patent

active

053296230

ABSTRACT:
A host interface comprising a reassembler for reassembling and decrypting data that has been encrypted in accordance with a pre-defined key and segmented into a plurality of asynchronous transfer mode (ATM) cells. Each cell comprises a virtual channel identifier (VCI), a multiplexing identifier (MID) if the data is transmitted using the CCITT specified Class 4 connectionless transfer ATM adaptation layer (AAL), and a cell body. The reassembler comprises a cell manager for separating each cell body from that cell body's corresponding VCI and MID (if present), a linked list manager for managing and storing linked list data indicative of addresses at which the cell bodies are to be stored, a content addressable memory (CAM) for managing and storing the VCIs (and MIDs for connectionless data) and providing pointers into the linked list data, a lookup controller for writing the VCIs to the CAM, a reassembly buffer for storing the cell bodies, and a decryption device for decrypting the data and writing the decrypted data to the reassembly buffer. The major subsections operate concurrently to form an ATM cell-processing pipeline. The interface may also comprise a segmenter for encrypting data received from a host computer and segmenting the encrypted data into a plurality of ATM cells.

REFERENCES:
patent: 4975906 (1990-12-01), Takiyasu et al.
patent: 4982429 (1991-01-01), Takaragi et al.
patent: 5012466 (1991-04-01), Buhrke et al.
patent: 5081678 (1992-01-01), Kaufman et al.
patent: 5101404 (1992-03-01), Kunimoto et al.
patent: 5130984 (1992-07-01), Cisneros
patent: 5136584 (1992-08-01), Hedlund
patent: 5144622 (1992-09-01), Takiyasu et al.
patent: 5153920 (1992-10-01), Danner
patent: 5214698 (1993-05-01), Smith, Sr. et al.
patent: 5220606 (1993-06-01), Greenberg
patent: 5253294 (1993-10-01), Maurer
Arnould et al., "The Design of Nectar: A Netwrok Backplane for Heterogeneous Multicomputers," Jan. (1989) CMU-DS-89-101.
Cooper et al., "Protocol Implementation on the Nectar Communication Processor," (1990).
H. B. Bakoglu et al., "RISC System/6000 Hardwared Overview".
David T. Greaves et al., "The Cambridge Backbone Ring," IEEE Infocom 90, Feb. 5, 1990.
Andy Hooper, "Pandora-An Experimental System for Multimedia Applications," University of Cambridge, pp. 1-16.
Israel Cidon et al., "PARIS: An Approach to Integrated High-Speed Private Networks," Int'l Journal of Digital and Analog Cabled Systems, vol. 1, 77-85 (1988).
Bruce S. Davie, "Host Interface Design for Experimental, Very High-Speed Networks," Bell Communications Research.
Anna Hac et al., "Synchronous Optical Network and Broadband ISDN Protocols," IEEE, Computer, 1989, pp. 26-33.
Martin Zitterbart, "High-Speed Transport Components," IEEE Network Magazine, Jan. 1991. 54-80.
H. Abu-Amara, et al., "PSi: A Silicon Computer For Very Fast Protocol Processing," Columbia University Computer Science Dept.
Advanced Micro Devices, AM99C10 256.times.48 Content Addressable Memory (CAM) Pub. No. 08125, Rev. C., Aug. 1988.
CHIPS 82C611, 82C612 Micro CHIPS: Micro Channel Interface Parts (1988).
Special Report "Gigabit Network Testbeds," IEEE, Sep. 1990, pp. 77-80.
Ruzena Bajcsy et al., "Gigabit Telemanufacturing: Applying Advanced Information Infrastructure," Abstract, Computer and Information Science, University of Pennsylvania.
AM99C10 256.times.48 Content Addressable Memory Pub. No. DE125.
EPM5128 Data Sheet; pp. 71-76.
EPM5032 Data Sheet; pp. 49-52.
Deep First-In First-Out (FIFO) 512.times.9 CMOS Memory Pub. No. 10175 (Aug. 1988).
VLSI Technology, Inc. Advance Information VM007, "Data Encryption Process" Mar. 1992, pp. 1-38.
U.S. application Ser. No. 07/708/775 filed May 28, 1991 to Smith et al.

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