[Resource Topic] 2019/671: A Server-Assisted Hash-Based Signature Scheme

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A Server-Assisted Hash-Based Signature Scheme

Authors: Ahto Buldas, Risto Laanoja, Ahto Truu


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.

ePrint: https://eprint.iacr.org/2019/671

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