Authors: Herman Schoenfeld
An abstract post-quantum digital signature scheme is presented that parameterizes a one-time signature scheme (OTS) for "many-time" use. This scheme permits a single key-pair to efficiently sign and verify a (great) many messages without security degradation. It achieves this by following the original Merkle-Signature Scheme but without a coupling to a specific OTS. Various improvements include a reduction in signature size, resistance to denial-of-service attacks and smaller keys. This construction comprises a bit-level specification for the Abstract Merkle Signature Scheme (AMS).
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