Web: https://iacr.org/news/item/19626

Nov. 23, 2022, 5:30 p.m. |

IACR News iacr.org

ePrint Report: WOTSwana: A Generalized Sleeve Construction for Multiple Proofs of Ownership

David Chaum, Mario Larangeira, Mario Yaksetig

The $\mathcal{S}_{leeve}$ construction proposed by Chaum et al. (ACNS'21) introduces an extra security layer for digital wallets by allowing users to generate a "back up key" securely nested inside the secret key of a signature scheme, i.e., ECDSA. The "back up key", which is secret, can be used to issue a "proof of ownership", i.e., only the real owner of this secret …

construction eprint report ownership

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