Compatible cofactor multiplication for Diffie-Hellmanprimitives
- 10 December 1998
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 34 (25) , 2396-2397
- https://doi.org/10.1049/el:19981683
Abstract
Cofactor multiplication has recently been proposed as a technique for protecting Diffie-Hellman primitives against certain attacks. However, a Diffie-Hellman primitive protected with cofactor multiplication as initially described produces different keys when not under attack than its unprotected counterpart. A simple modification to cofactor multiplication is presented that overcomes this incompatibility.Keywords
This publication has 3 references indexed in Scilit:
- Use of Elliptic Curves in CryptographyPublished by Springer Nature ,2000
- A key recovery attack on discrete log-based schemes using a prime order subgroupPublished by Springer Nature ,1997
- New directions in cryptographyIEEE Transactions on Information Theory, 1976