Paper 2006/396 Original: eprint.iacr.org/2006/396 ↗

Security Protocols with Isotropic Channels

Madhukar Anand
Eric Cronin
Micah Sherr
Matt Blaze
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
Preprint.
History
2006-11-12: last updated
2006-11-12: published
Short URL
https://ia.cr/2006/396
License
https://creativecommons.org/licenses/by/4.0/

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}
}
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