Paper 2017/136

Dispersed Cryptography and the Quotient Ring Transform

Anna Johnston

Abstract

This paper describes a radically different privacy, security and integrity solution. Dispersed Cryptography converts the cloud from a security threat into a security asset by combining a standard stream cipher and the Quotient Ring Transform (QRT). The result is an integrated error correction/encryption algorithm. This encoding disperses data, breaking it into many smaller pieces and scattering them to different sites. No single site is critical; any can be lost without losing data. No single site can access data, even if the cryptovariable (secret key) is compromised. The resulting system is more flexible and seamlessly adds both data integrity and security. The underlying codes are linear, and therefore have homomorphic properties and may be used in coding based quantum resistant cryptography.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint. MINOR revision.
Keywords
cryptographic dispersalthreshold cryptographyfoundationserror correction code
Contact author(s)
drannajohnston @ gmail com
History
2017-02-20: received
Short URL
https://ia.cr/2017/136
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2017/136,
      author = {Anna Johnston},
      title = {Dispersed Cryptography and the Quotient Ring Transform},
      howpublished = {Cryptology ePrint Archive, Paper 2017/136},
      year = {2017},
      note = {\url{https://eprint.iacr.org/2017/136}},
      url = {https://eprint.iacr.org/2017/136}
}
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