IEICE TRANSACTIONS on Fundamentals
Efficient Usage of Cover Free Families in Broadcast Encryption
Summary :
A cover free family (CFF) is a useful mathematical tool for cryptographic schemes where any pre-defined number of sets in the family do not cover another set in the family. The common disadvantage of CFF-based schemes is the requirement for a significantly large amount of data such as public keys and ciphertexts. This paper proposes a simple method to reduce the size of ciphertexts in CFF-based broadcast encryption schemes by removing redundant elements from sets in the family, and then analyzes the size of cihpertexts. As a result, in a typical distribution case, the average amount of ciphertexts is reduced to 83 percents (from 691Kbits to 576Kbits).
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E99-A No.6 pp.1216-1221
- Publication Date
- 2016/06/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E99.A.1216
- Type of Manuscript
- PAPER
- Category
- Cryptography and Information Security
Authors
Maki YOSHIDA
National Institute of Information and Communications Technology
Toru FUJIWARA
Osaka University
Keyword
Latest Issue
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Maki YOSHIDA, Toru FUJIWARA, "Efficient Usage of Cover Free Families in Broadcast Encryption" in IEICE TRANSACTIONS on Fundamentals,
vol. E99-A, no. 6, pp. 1216-1221, June 2016, doi: 10.1587/transfun.E99.A.1216.
Abstract: A cover free family (CFF) is a useful mathematical tool for cryptographic schemes where any pre-defined number of sets in the family do not cover another set in the family. The common disadvantage of CFF-based schemes is the requirement for a significantly large amount of data such as public keys and ciphertexts. This paper proposes a simple method to reduce the size of ciphertexts in CFF-based broadcast encryption schemes by removing redundant elements from sets in the family, and then analyzes the size of cihpertexts. As a result, in a typical distribution case, the average amount of ciphertexts is reduced to 83 percents (from 691Kbits to 576Kbits).
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E99.A.1216/_p
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@ARTICLE{e99-a_6_1216,
author={Maki YOSHIDA, Toru FUJIWARA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Efficient Usage of Cover Free Families in Broadcast Encryption},
year={2016},
volume={E99-A},
number={6},
pages={1216-1221},
abstract={A cover free family (CFF) is a useful mathematical tool for cryptographic schemes where any pre-defined number of sets in the family do not cover another set in the family. The common disadvantage of CFF-based schemes is the requirement for a significantly large amount of data such as public keys and ciphertexts. This paper proposes a simple method to reduce the size of ciphertexts in CFF-based broadcast encryption schemes by removing redundant elements from sets in the family, and then analyzes the size of cihpertexts. As a result, in a typical distribution case, the average amount of ciphertexts is reduced to 83 percents (from 691Kbits to 576Kbits).},
keywords={},
doi={10.1587/transfun.E99.A.1216},
ISSN={1745-1337},
month={June},}
Copy
TY - JOUR
TI - Efficient Usage of Cover Free Families in Broadcast Encryption
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1216
EP - 1221
AU - Maki YOSHIDA
AU - Toru FUJIWARA
PY - 2016
DO - 10.1587/transfun.E99.A.1216
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E99-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2016
AB - A cover free family (CFF) is a useful mathematical tool for cryptographic schemes where any pre-defined number of sets in the family do not cover another set in the family. The common disadvantage of CFF-based schemes is the requirement for a significantly large amount of data such as public keys and ciphertexts. This paper proposes a simple method to reduce the size of ciphertexts in CFF-based broadcast encryption schemes by removing redundant elements from sets in the family, and then analyzes the size of cihpertexts. As a result, in a typical distribution case, the average amount of ciphertexts is reduced to 83 percents (from 691Kbits to 576Kbits).
ER -
English
