Paper 2004/244
Signcryption in Hierarchical Identity Based Cryptosystem
Sherman S. M. Chow, Tsz Hon Yuen, Lucas C. K. Hui, and S. M. Yiu
Abstract
In many situations we want to enjoy confidentiality, authenticity and non-repudiation of message simultaneously. One approach to achieve this objective is to "sign-then-encrypt" the message, or we can employ special cryptographic scheme like signcryption. Two open problems about identity-based (ID-based) signcryption were proposed in \cite{CryptoePrint:2003:023}. The first one is to devise an efficient forward-secure signcryption scheme with public verifiability and public ciphertext authenticity, which is promptly closed by \cite{LNCS2971:ICISC2003:CYHC}. Another one which still remains open is to devise a hierarchical ID-based signcryption scheme that allows the user to receive signcrypted messages from sender who is under another sub-tree of the hierarchy. This paper aims at solving this problem by proposing two concrete constructions of hierarchical ID-based signcryption.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. To appear in Security and Privacy in the Age of Ubiquitous Computing, IFIP TC11 20th International Conference on Information Security (SEC 2005), May 30 - June 1, 2005, Chiba, Japan.
- Keywords
- ID-based cryptographySigncryptionHierarchical ID-based CryptosystemBilinear pairings
- Contact author(s)
- smchow @ cs hku hk
- History
- 2005-02-15: last of 12 revisions
- 2004-09-22: received
- See all versions
- Short URL
- https://ia.cr/2004/244
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/244,
author = {Sherman S. M. Chow and Tsz Hon Yuen and Lucas C. K. Hui and S. M. Yiu},
title = {Signcryption in Hierarchical Identity Based Cryptosystem},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/244},
year = {2004},
url = {https://eprint.iacr.org/2004/244}
}
