Abstract:This report considers threshold signature schemes interchangeable with respect to the verification mechanism of the Edwards-Curve Digital Signature Algorithm (EdDSA). Historically, EdDSA is known as a variant of Schnorr signatures, which are well-studied and suitable for efficient thresholdization, i.e., for being computed when the private signing key is secret-shared across multiple parties. In the threshold setting, signatures remain unforgeable even if up to some threshold number of the cosigners become com… Show more
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