Group-oriented encryption secure against collude attack

Chunbo Ma; Jun Ao; Jianhua Li

Paper 2007/371 Original: eprint.iacr.org/2007/371 ↗

Group-oriented encryption secure against collude attack

Chunbo Ma

Jun Ao

Jianhua Li

Abstract

A group oriented encryption scheme is presented in this paper. In this scheme, a sender is allowed to encrypt a message using the group public key and send the ciphertext to the group. Any user in the group can independently decrypt the ciphertext via his private key. The scheme is secure against adaptively chosen ciphertext attack and collude attack.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
History: 2007-09-19: last updated; 2007-09-19: published
Short URL: https://ia.cr/2007/371
License: https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2007/371,
      author = {Chunbo Ma and Jun Ao and Jianhua Li},
      title = {Group-oriented encryption secure against collude attack},
      howpublished = {Cryptology {ePrint} Archive, Paper 2007/371},
      year = {2007},
      url = {https://eprint.iacr.org/2007/371}
}