Global Sales Contact List

Contact   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

RSA Laboratories

Flaw in NTRU Signature Scheme (NSS)

In a presentation at Eurocrypt 2001 on Tuesday, May 8 in Innsbruck, Austria, RSA Laboratories scientists Jakob Jonsson and Michael Szydlo indicated they have found a flaw in an initial version of the NTRU Signature Scheme (NSS), leading to two different types of practical attacks.

The first attack enables an opponent, given a modest number of signatures (say, 100,000) generated with a private signature key, to determine the signature key and thereby forge an unlimited number of new signatures.

The second attack enables an opponent, given only the signer's public key and no signatures at all, to forge an unlimited number of new signatures.

The attacks were discovered at RSA Laboratories in late March and subsequently communicated to NTRU's scientists. Independently, Jacques Stern (ENS) and Craig Gentry (DoCoMo Communications Laboratories) also developed attacks similar to the second attack. RSA Laboratories is currently evaluating whether the attacks can be extended to the recently enhanced version of NSS.

Connect with EMCConnect with EMC
Need help immediately? EMC Sales Specialists are standing by to answer your questions real time.
Use Live Chat for fast, direct access to EMC Customer Service Professionals to resolve your support questions.
Explore and compare EMC products in the EMC Store, and get a price quote from EMC or an EMC partner.
Explore our world-class business partners and connect with a partner today.
We're here to help. Send us your sales inquiry and an EMC Sales Specialist will get back to you within one business day.
Want to talk? Call us to speak with an EMC Sales Specialist live.