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Merkle Tree Ladder Mode: Reducing the Size Impact of NIST PQC Signature Algorithms in Practice

December 1, 2022


Burt Kaliski - Verisign


We introduce the Merkle Tree Ladder (MTL) mode of operation for signature schemes. MTL mode signs messages using an underlying signature scheme in such a way that the resulting signatures are condensable: a set of MTL mode signatures can be conveyed from a signer to a verifier in fewer bits than if the MTL mode signatures were sent individually.


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Related Topics

Security and Privacy: post-quantum cryptography

Created November 29, 2022, Updated December 06, 2022