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Paper 2002/170
An Analysis of RMAC
Jack Lloyd
Abstract
A recent trend in message authentication is the use of a randomizing parameter, such that the authentication tag is based not only on the message and the key, but a public nonce which is changed for every authenticated message. This generally affords a better security proof. However, several new classes of attacks are made available by these techniques. We examine these attacks, and apply some of them to RMAC, a recently published MAC mechanism.
Metadata
- Available format(s)
- PS
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- message authentication codescryptanalysis
- Contact author(s)
- lloyd @ acm jhu edu
- History
- 2002-11-18: revised
- 2002-11-12: received
- See all versions
- Short URL
- https://ia.cr/2002/170
- License
-
CC BY
