Paper 2015/576 Original: eprint.iacr.org/2015/576 ↗

The Carnac protocol -- or how to read the contents of a sealed envelope

Michael Scott
Brian Spector
Abstract

Johnny Carson as long time host of the Tonight show often appeared in the spoof role of Carnac the Magnificent, a mentalist who could magically read the contents of a sealed envelope. This is in fact a well known stock-in-trade trick of the mentalist's craft, known as ``billet reading''. Here we propose a cryptographic solution to the problem of billet reading, apparently allowing a cipher-text to be decrypted without direct knowledge of the cipher-text, and present both a compelling use case and a practical implementation.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2015-06-17: last updated
2015-06-17: published
Short URL
https://ia.cr/2015/576
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2015/576,
      author = {Michael Scott and Brian Spector},
      title = {The Carnac protocol -- or how to read the contents of a sealed envelope},
      howpublished = {Cryptology {ePrint} Archive, Paper 2015/576},
      year = {2015},
      url = {https://eprint.iacr.org/2015/576}
}
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