Bandwidth-Efficient Threshold EC-DSA

Bandwidth-Efficient Threshold EC-DSA

TheIACR via YouTube Direct link

Intro

1 of 22

1 of 22

Intro

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Bandwidth-Efficient Threshold EC-DSA

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  1. 1 Intro
  2. 2 Motivation for distributed ECDSA
  3. 3 (t, n)-threshold signature scheme
  4. 4 ECDSA protocol
  5. 5 Difficulty in the signing Algorithm
  6. 6 Table of contents
  7. 7 Previous works comparable to ours
  8. 8 Full threshold ECDSA-GG @ CCS'18
  9. 9 Removing range proofs
  10. 10 CL framework
  11. 11 Instantiation in class groups of an imaginary quadratic field
  12. 12 Interactive set up and key generation
  13. 13 Interactive signing - Phase 1
  14. 14 Interactive signing - Phase 2 (peer to peer)
  15. 15 At the end of Phase 2
  16. 16 Phases 3, 4 and 5
  17. 17 Main differences with the Gennaro Goldfeder protocol
  18. 18 Improving Phase 1
  19. 19 Proof that a ciphertext is well formed
  20. 20 Improving ZKAOK
  21. 21 Computational assumptions for soundness
  22. 22 Efficiency of full threshold protocol

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