Cryptology ePrint Archive: Report 2014/321
Efficient Quantum-Immune Keyless Signatures with Identity
Ahto Buldas and Risto Laanoja and Ahto Truu
Abstract: We show how to extend hash-tree based data signatures to server-assisted personal digital signature schemes. The new signature scheme does not use trapdoor functions and is based solely on cryptographic hash functions and is thereby, considering the current state of knowledge, resistant to quantum computational attacks. In the new scheme, we combine hash-tree data signature (time- stamping) solutions with hash sequence authentication mechanisms. We show how to implement such a scheme in practice.
Category / Keywords: digital signatures, hash functions
Date: received 6 May 2014, last revised 2 Sep 2014
Contact author: ahto buldas at guardtime com, risto laanoja@guardtime com
Available format(s): PDF | BibTeX Citation
Note: A remark added about the security of the signature scheme.
Version: 20140902:073252 (All versions of this report)
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