Title
Key Update Mechanism Using All-Or-Nothing Transform For Network Storage Of Encrypted Data
Abstract
Cryptography is now popularized and is widely used anywhere for many aims such as data confidentiality and integrity. The cryptographic key has a limited lifetime. For example, the National Institute of Standards and Technology published SP800-57 in order to provide cryptographic key management guidance, and it strictly limits the lifetime of the cryptographic key and the lifetime of encrypted data. That means, the data encryption key is required to be periodically updated and the associated encrypted data is required to be re-encrypted with the new key each time. The cost, especially network traffic, is crucial if the encrypted data is away from the key. In this paper we discuss what to be achieved by key updating and propose a key update mechanism reducing the communication and computation cost of re-encryption.
Year
DOI
Venue
2015
10.1587/transfun.E98.A.162
IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES
Keywords
Field
DocType
re-encryption, all-or-nothing transform, cryptographic key management
Key management,Key exchange,Key Wrap,Key encapsulation,All-or-nothing transform,Computer network,Encryption,On-the-fly encryption,Filesystem-level encryption,Mathematics
Journal
Volume
Issue
ISSN
E98A
1
1745-1337
Citations 
PageRank 
References 
1
0.37
6
Authors
2
Name
Order
Citations
PageRank
Dai Watanabe1434.21
Masayuki Yoshino2217.43