Security Protocols with Isotropic Channels

Madhukar Anand; Eric Cronin; Micah Sherr; Matt Blaze; Sampath Kannan

Paper 2006/396

Security Protocols with Isotropic Channels

Madhukar Anand, Eric Cronin, Micah Sherr, Matt Blaze, and Sampath Kannan

Abstract

We investigate the security properties of "isotropic channels", broadcast media in which a receiver cannot reliably determine whether a message originated from any particular sender and a sender cannot reliably direct a message away from any particular receiver. We show that perfect isotropism implies perfect (information-theoretic) secrecy, and that asymptotically close to perfect secrecy can be achieved on any channel that provides some (bounded) uncertainty as to sender identity. We give isotropic security protocols under both passive and active adversary models, and discuss the practicality of realizing isotropic channels over various media.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Keywords: unconditional security secret-key agreement provable security isotropic channels
Contact author(s): msherr @ cis upenn edu
History: 2006-11-12: received
Short URL: https://ia.cr/2006/396
License: CC BY

BibTeX

@misc{cryptoeprint:2006/396,
      author = {Madhukar Anand and Eric Cronin and Micah Sherr and Matt Blaze and Sampath Kannan},
      title = {Security Protocols with Isotropic Channels},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/396},
      year = {2006},
      url = {https://eprint.iacr.org/2006/396}
}