Hash-based cryptography: Difference between revisions

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The stateful hash-based schemes XMSS and XMSS<sup>''MT''</sup> are specified in [[Request for Comments|RFC]] 8391 (XMSS: eXtended Merkle Signature Scheme)
.<ref>{{cite web|last1=Hülsing|first1=Andreas|last2=Butin|first2=Denis|last3=Gazdag|first3=Stefan|last4=Rijneveld|first4=Joost|last5=Mohaisen|first5=Aziz|title=RFC 8391 - XMSS: eXtended Merkle Signature Scheme|url=https://tools.ietf.org/html/rfc8391|website=tools.ietf.org|publisher=IETF|language=en}}</ref>
Leighton-Micali Hash-Based Signatures are specified in [[Request for Comments|RFC]] 8554.<ref>{{cite web|last1=McGrew|first1=David|last2=Curcio|first2=Michael|last3=Fluhrer|first3=Scott|title=RFC 8554 - Leighton-Micali Hash-Based Signatures|url=https://tools.ietf.org/html/rfc8554|website=tools.ietf.org|publisher=IETF|language=en}}</ref> Practical improvements have been proposed in the literature that alleviate the concerns introduced by stateful schemes.<ref>{{cite journal|last1=McGrew|first1=David|last2=Kampanakis|first2=Panos|last3=Fluhrer|first3=Scott|last4=Gazdag|first4=Stefan-Lukas|last5=Butin|first5=Denis|last6=Buchmann|first6=Johannes|title=State Management for Hash-Based Signatures|journal=Lecture Notes in Computer Science|date=2016|volume=10074|issue=Security Standardisation Research|pages=244–260|doi=10.1007/978-3-319-49100-4_11|url=https://pdfs.semanticscholar.org/502a/2a2f5043f0d32fec0a5818d203fb4c9cd266.pdf|archive-url=https://web.archive.org/web/20170818214629/https://pdfs.semanticscholar.org/502a/2a2f5043f0d32fec0a5818d203fb4c9cd266.pdf|url-status=dead|archive-date=2017-08-18|language=en}}</ref> Hash functions appropriate for these schemes include [[SHA-2]], [[SHA-3]] and [[BLAKE (hash function)|BLAKE]].
 
==Implementations==