Paper 2011/372

Identity based signcryption schemes without random oracles

Prashant Kushwah and Sunder Lal

Abstract

Signcryption is a cryptographic primitive which performs encryption and signature in a single logical step with the cost lower than signature-then-encryption approach.. In this paper we gave attacks on confidentiality and unforgeability of two identity based signcryption schemes without random oracles. Further we proposed an improved identity based signcryption scheme without random oracles. We also proposed an identity based public verifiable signcryption scheme with third party verification without random oracles.

Metadata
Available format(s)
PDF
Category
Public-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
Signcryptionpublic verifiable signcryptionidentity based cryptographyprovable securitystandard model.
Contact author(s)
pra ibs @ gmail com
sunder_lal2 @ rediffmail com
History
2011-07-10: received
Short URL
https://ia.cr/2011/372
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2011/372,
      author = {Prashant Kushwah and Sunder Lal},
      title = {Identity based signcryption schemes without random oracles},
      howpublished = {Cryptology ePrint Archive, Paper 2011/372},
      year = {2011},
      note = {\url{https://eprint.iacr.org/2011/372}},
      url = {https://eprint.iacr.org/2011/372}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.