Papers Papers/2022 Papers Papers/2022

Research.Publish.Connect.

Paper

Author: Sigurd Eskeland

Affiliation: Norwegian Computing Center, Postboks 114 Blindern, 0314 Oslo, Norway

Keyword(s): Broadcast Encryption, Public Key Cryptography, RSA Subgroups.

Abstract: Public key broadcast encryption enables computations of ciphertexts, in which a single ciphertext is encrypted with regard to a set of recipients, and only the intended recipients can decrypt that ciphertext independently of each other and without interactions. A significant shortcoming of existing broadcast encryption schemes are long decryption keys comprising the public keys of pertaining recipients. Decryption therefore necessitates access to public keys, which requires key management and impacts computational and transmission overhead, accessibility, and storage. Moreover, a user description list referencing the pertaining recipients and their public keys must be appended to each ciphertext, which leads to the privacy implication of disclosing user/content-relations. Curiously, virtually all broadcast encryption schemes are based on bilinear pairings. In this paper, we propose a collusion-resistant broadcast encryption scheme that is the first broadcast encryption scheme based o n the factorization problem and hidden RSA subgroups. A novel feature is that the decryption key consists of a single element only, which leads to significantly reduced key management, improved computational efficiency, and elimination of the mentioned privacy issue. (More)

CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 3.14.88.3

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
Eskeland, S. (2022). Collusion-resistant Broadcast Encryption based on Hidden RSA Subgroups. In Proceedings of the 19th International Conference on Security and Cryptography - SECRYPT; ISBN 978-989-758-590-6; ISSN 2184-7711, SciTePress, pages 291-298. DOI: 10.5220/0011140000003283

@conference{secrypt22,
author={Sigurd Eskeland},
title={Collusion-resistant Broadcast Encryption based on Hidden RSA Subgroups},
booktitle={Proceedings of the 19th International Conference on Security and Cryptography - SECRYPT},
year={2022},
pages={291-298},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011140000003283},
isbn={978-989-758-590-6},
issn={2184-7711},
}

TY - CONF

JO - Proceedings of the 19th International Conference on Security and Cryptography - SECRYPT
TI - Collusion-resistant Broadcast Encryption based on Hidden RSA Subgroups
SN - 978-989-758-590-6
IS - 2184-7711
AU - Eskeland, S.
PY - 2022
SP - 291
EP - 298
DO - 10.5220/0011140000003283
PB - SciTePress