HYBRID SIGNATURE SCHEME

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United States of America Patent

SERIAL NO

14307299

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A signature scheme is provided in which a message is divided in to a first portion which is hidden and is recovered during verification, and a second portion which is visible and is required as input to the verification algorithm. A first signature component is generated by encrypting the first portion alone. An intermediate component is formed by combining the first component and the visible portion and cryptographically hashing them. A second signature component is then formed using the intermediate component and the signature comprises the first and second components with the visible portion. A verification of the signature combines a first component derived only from the hidden portion of the message with the visible portion and produces a hash of the combination. The computed hash is used together with publicly available information to generate a bit string corresponding to the hidden portion.

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Patent Owner(s)

Patent OwnerAddress
CERTICOM CORPONTARIO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
GALLANT, Robert Philip Corner Brook, CA 8 10
LAMBERT, Robert John Cambridge, CA 42 312
PINTSOV, Leon A West Hartford, US 121 3595
RYAN,, JR Frederick W Oxford, US 49 281
SINGER, Ari Hamden, US 5 33
VANSTONE, Scott Alexander Campbellville, CA 44 421

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