Paper 2020/283
CryptoWills: How to Bequeath Cryptoassets
István András Seres, Omer Shlomovits, and Pratyush Ranjan Tiwari
Abstract
In this paper, we put forth the problem of bequeathing cryptoassets. In this problem, a testator wishes to bequeath cryptoassets - e.g. secrets, static keys or cryptocurrency - to their heirs. Crucially, the testator should retain control of their assets before their passing. Additionally testator needs to maintain privacy, i.e. beneficiaries must not learn the bequest, moreover, beneficiaries must not be able to determine whether they will inherit at all before testator's decease. We formally define the security goals of a cryptographic will (cryptowill) protocol and subsequently present schemes fulfilling the required security properties.
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Preprint. MINOR revision.
- Keywords
- Secret sharingBlockchainCryptocurrencyTrusted Execution EnvironmentTime-Lock Puzzle
- Contact author(s)
-
istvanseres @ caesar elte hu
omer @ kzencorp com - History
- 2020-03-04: received
- Short URL
- https://ia.cr/2020/283
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2020/283,
author = {István András Seres and Omer Shlomovits and Pratyush Ranjan Tiwari},
title = {{CryptoWills}: How to Bequeath Cryptoassets},
howpublished = {Cryptology {ePrint} Archive, Paper 2020/283},
year = {2020},
url = {https://eprint.iacr.org/2020/283}
}
