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- $\begingroup$ Just a follow-up for your answer, actually some folks formalized a group signature scheme based solely on Merkle Trees of One-time Signatures and Cryptographic Permutations. It's the most efficient quantum-robust group signature scheme without any decrease on security upper-bounds. The paper is called G-Merkle: A Hash-Based Group Signature Scheme From Standard Assumptions, and it's pretty worth the reading. Now I'm looking forward into (possible?) Hash-based Ring Signatures Constructions using underlying Multi-Party Computations ceremonies. $\endgroup$Marco Aurélio da Silva– Marco Aurélio da Silva2019-11-12 18:42:28 +00:00Commented Nov 12, 2019 at 18:42
- $\begingroup$ In simpler words, OTS + Merkle Tree + PRP enable group public key for verification of signatures made by anonymous but traceable secret keys. $\endgroup$Marco Aurélio da Silva– Marco Aurélio da Silva2019-11-12 18:46:35 +00:00Commented Nov 12, 2019 at 18:46
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