A Server-Assisted Hash-Based Signature Scheme

Ahto Buldas; Risto Laanoja; Ahto Truu

Paper 2019/671

A Server-Assisted Hash-Based Signature Scheme

Ahto Buldas, Risto Laanoja, and Ahto Truu

Abstract

We present a practical digital signature scheme built from a cryptographic hash function and a hash-then-publish digital time- stamping scheme. We also provide a simple proof of existential unforgeability against adaptive chosen-message attack (EUF-ACM) in the random oracle (RO) model.

Metadata

Available format(s): PDF
Category: Cryptographic protocols
Publication info: Published elsewhere. NordSec 2017
DOI: 10.1007/978-3-319-70290-2_1
Keywords: digital signatures hash functions public-key cryptography
Contact author(s): ahto truu @ guardtime com
History: 2019-06-06: received
Short URL: https://ia.cr/2019/671
License: CC BY

BibTeX

@misc{cryptoeprint:2019/671,
      author = {Ahto Buldas and Risto Laanoja and Ahto Truu},
      title = {A Server-Assisted Hash-Based Signature Scheme},
      howpublished = {Cryptology ePrint Archive, Paper 2019/671},
      year = {2019},
      doi = {10.1007/978-3-319-70290-2_1},
      note = {\url{https://eprint.iacr.org/2019/671}},
      url = {https://eprint.iacr.org/2019/671}
}