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Comodo Cryptography expert to speak at IEEE Symposium on Computer Arithmetic

Partial information leakage poses major threat for SmartCard manufacturers

New Jersey 31st May 2005 Comodo, the leading global provider of Risk AlignmentT Services announce that Dr Colin Walter will be speaking at the forthcoming 17th IEEE Symposium on Computer Arithmetic. Dr Walter, Comodo's Head of Cryptography, will present a paper on data leakage from multipliers during the conference at Cape Cod, 27-29 June.

His paper confirms that the hardware multiplier is indeed a major source of key leakage, but also that choosing a different multiplier can mitigate the problem. An early version of his paper can be downloaded from Comodo's research web pages at

Speaking about the upcoming presentation, Colin remarked: "Partial information about secret cryptographic keys is known to leak from most cryptographic hardware as a result of voltage, timing and EMR variations in particular. This is probably the major concern of smartcard manufacturers at the moment, far exceeding the risks posed by the possible discovery of mathematical attacks on the message I/O of cryptographic processes"

Dr. Walter is internationally known for his insights into side channel leakage of secret key data and contributes regularly to the main cryptography journals and conferences. He is general chair of the next CHES conference (Cryptographic Hardware and Embedded Systems, which takes place in Edinburgh, Scotland, 29 August – 1 September 2005.

About Comodo

The Comodo companies provide the infrastructure that is essential in enabling e-merchants, other Internet-connected companies, software companies, and individual consumers to interact and conduct business via the Internet safely and securely. The Comodo companies offer PKI SSLCode SigningContent Verification and Email Certificate; award winning PC Security software;  Vulnerability Scanning services for PCI Compliance; secure e-mail and fax services.   

Continual innovation, a core competence in PKI, and a commitment to reversing the growth of Internet-crime distinguish the Comodo companies as vital players in the Internet's ongoing development. Comodo secures and authenticates online transactions and communications for over 200,000 business customers and 3,000,000 users of our desktop security products. 

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