Patents by Inventor Ari Singer
Ari Singer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140298033Abstract: 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.Type: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Applicants: PITNEY BOWES INC., CERTICOM CORP.Inventors: Scott Alexander VANSTONE, Robert Philip GALLANT, Robert John LAMBERT, Leon A. PINTSOV, Frederick W. RYAN, JR., Ari SINGER
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Patent number: 8793500Abstract: 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.Type: GrantFiled: March 15, 2012Date of Patent: July 29, 2014Assignees: Certicom Corp., Pitney Bowes Inc.Inventors: Scott Alexander Vanstone, Robert Gallant, Robert J. Lambert, Leon A. Pintsov, Frederick W. Ryan, Jr., Ari Singer
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Publication number: 20120233469Abstract: 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.Type: ApplicationFiled: March 15, 2012Publication date: September 13, 2012Applicants: PITNEY BOWES INC., CERTICOM CORP.Inventors: Scott Alexander VANSTONE, Robert GALLANT, Robert J. LAMBERT, Leon A. PINTSOV, Frederick W. RYAN, JR., Ari SINGER
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Patent number: 8195948Abstract: 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.Type: GrantFiled: December 23, 2010Date of Patent: June 5, 2012Assignees: Certicom Corp., Pitney Bowes Inc.Inventors: Scott Alexander Vanstone, Robert Phillip Gallant, Robert John Lambert, Leon A. Pinstov, Frederick W. Ryan, Jr., Ari Singer
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Publication number: 20110093718Abstract: 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.Type: ApplicationFiled: December 23, 2010Publication date: April 21, 2011Applicants: CERTICOM CORP., PITNEY BOWES INC.Inventors: Scott Alexander VANSTONE, Robert GALLANT, Robert J. LAMBERT, Leon A. PINSTOV, Frederick W. RYAN, JR., Ari SINGER
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Patent number: 7877610Abstract: A signature scheme is provided in which a message is divided into 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.Type: GrantFiled: June 21, 2007Date of Patent: January 25, 2011Assignees: Certicom Corp., Pitney Bowes Inc.Inventors: Scott Alexander Vanstone, Robert Gallant, Robert J. Lambert, Leon A. Pintsov, Frederick W. Ryan, Jr., Ari Singer
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Publication number: 20080141036Abstract: A signature scheme is provided in which a message is divided into 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.Type: ApplicationFiled: June 21, 2007Publication date: June 12, 2008Inventors: Scott Alexander Vanstone, Robert Gallant, Robert J. Lambert, Leon A. Pinstov, Frederick W. Ryan, Ari Singer
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Patent number: 7249259Abstract: 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.Type: GrantFiled: September 7, 1999Date of Patent: July 24, 2007Assignee: Certicom Corp.Inventors: Scott Alexander Vanstone, Robert Gallant, Robert J. Lambert, Leon A. Pintsov, Frederick W. Ryan, Jr., Ari Singer