Fast Secure Two-Party ECDSA Signing

@inproceedings{Lindell2017FastST,
  title={Fast Secure Two-Party ECDSA Signing},
  author={Yehuda Lindell},
  booktitle={IACR Cryptology ePrint Archive},
  year={2017}
}
ECDSA is a standard digital signature schemes that is widely used in TLS, Bitcoin and elsewhere. Unlike other schemes like RSA, Schnorr signatures and more, it is particularly hard to construct efficient threshold signature protocols for ECDSA (and DSA). As a result, the best-known protocols today for secure distributed ECDSA require running heavy zero-knowledge proofs and computing many large-modulus exponentiations for every signing operation. In this paper, we consider the specific case of… CONTINUE READING

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