Verifiably Encrypted Signature Scheme with Threshold Adjudication

M.  Choudary Gorantla; Ashutosh Saxena

Paper 2006/343

Verifiably Encrypted Signature Scheme with Threshold Adjudication

M. Choudary Gorantla and Ashutosh Saxena

Abstract

Verifiably encrypted signature is useful in handling the fair exchange problem especially, online contract signing. In this paper, we propose a verifiably encrypted signature scheme using bilinear pairings. Our scheme facilitates the adjudication to be done in a threshold manner to achieve robustness. We show that the distribution of adjudication capability is robust and unforgeable. Our scheme is secure against extraction and existential forgery in the random oracle model.

Metadata

Available format(s): PDF PS
Category: Cryptographic protocols
Publication info: Published elsewhere. Unknown where it was published
Keywords: fair exchange threshold cryptography
Contact author(s): gmchoudary @ gmail com
History: 2006-10-20: received
Short URL: https://ia.cr/2006/343
License: CC BY

BibTeX

@misc{cryptoeprint:2006/343,
      author = {M.  Choudary Gorantla and Ashutosh Saxena},
      title = {Verifiably Encrypted Signature Scheme with Threshold Adjudication},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/343},
      year = {2006},
      url = {https://eprint.iacr.org/2006/343}
}