Paper 2012/449
Long Term Confidentiality: a Survey
Johannes Braun, Johannes Buchmann, Ciaran Mullan, and Alex Wiesmaier
Abstract
Sensitive electronic data may be required to remain confidential for long periods of time. Yet encryption under a computationally secure cryptosystem cannot provide a guarantee of long term confidentiality, due to potential advances in computing power or cryptanalysis. Long term confidentiality is ensured by information theoretically secure ciphers, but at the expense of impractical key agreement and key management. We overview known methods to alleviate these problems, whilst retaining some form of information theoretic security relevant for long term confidentiality.
Note: Update to final version.
Metadata
- Available format(s)
-
PDF
- Publication info
- Published elsewhere. The nal publication is available at www.springerlink.com (DOI : 10.1007/s10623-012-9747-6)
- Keywords
- long term confidentialityinformation theoretic securityperfect secrecyeverlasting security
- Contact author(s)
- jbraun @ cdc informatik tu-darmstadt de
- History
- 2012-09-13: revised
- 2012-08-07: received
- See all versions
- Short URL
- https://ia.cr/2012/449
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2012/449,
author = {Johannes Braun and Johannes Buchmann and Ciaran Mullan and Alex Wiesmaier},
title = {Long Term Confidentiality: a Survey},
howpublished = {Cryptology {ePrint} Archive, Paper 2012/449},
year = {2012},
url = {https://eprint.iacr.org/2012/449}
}