Cryptography – Key management – Having particular key generator
Patent
1998-03-11
2000-09-12
Swann, Tod R.
Cryptography
Key management
Having particular key generator
380 45, 380 46, H04L 900
Patent
active
061188697
ABSTRACT:
A decryption scheme is provided for encrypted configuration bitstreams in a programmable logic device. One embodiment includes circuitry for altering a decryption key for a plurality of encrypted bitstream portions, thereby providing a high level of security of the circuit layout embodied in the bitstream.
REFERENCES:
patent: 4202051 (1980-05-01), Davida et al.
patent: 5365588 (1994-11-01), Bianco et al.
patent: 5790666 (1998-08-01), Ooi
patent: 5799088 (1998-08-01), Raike
Hackett et al, "Build Better Sequential Circuits," ASIC & EDA, pp. 43-45, Mar. 1992.
Bob Hackett, Tom Leach, "Build Better Sequential Circuits", ASIC & EDA, Mar. 1992, pp. 43-45 & 49.
Burnham James L.
Kelem Steven H.
Harms, Esq. Jeanette S.
Kabakoff Steve
Swann Tod R.
Tachner, Esq. Adam H.
Xilinx , Inc.
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