Importance

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Abstract

A key generator that instantaneously generates an encryption/decryption key to provide a roaming device with secure and seamless access to various access points of a wireless network without interruption. The key generator comprises a multi-byte identifier shared by devices communicating with the network, a hashing module to transform the multi-byte identifier to a multi-bit digest thereof, a clock register that enables an output of a number of clock cycles determined by the digest, a programmable shift register that responds to the clock cycles to transform at least two safeguarded parameters to an output, and a spreader responsive to the digest and the output of the shift register to produce an encryption/decryption key.

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First Claim