Paper 2025/551
ANARKey: A New Approach to (Socially) Recover Keys
Abstract
In a social key recovery scheme, users back up their secret keys (typically using Shamir's secret sharing) with their social connections, known as a set of guardians. This places a heavy burden on the guardians, as they must manage their shares both securely and reliably. Finding and managing such a set of guardians may not be easy, especially when the consequences of losing a key are significant.
We take an alternative approach of social recovery within a community, where each member already holds a secret key (with possibly an associated public key) and uses other community members as their guardians forming a mutual dependency among themselves. Potentially, each member acts as a guardian for upto
Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Preprint.
- Keywords
- Key RecoveryKey ManagementSecret Sharing
- Contact author(s)
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aniket @ purdue edu
pratyay85 @ gmail com
h saleem @ supraoracles com
iampratiksarkar @ gmail com
bhaskarr @ berkeley edu - History
- 2025-03-26: approved
- 2025-03-25: received
- See all versions
- Short URL
- https://ia.cr/2025/551
- License
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CC BY-NC-SA
BibTeX
@misc{cryptoeprint:2025/551, author = {Aniket Kate and Pratyay Mukherjee and Hamza Saleem and Pratik Sarkar and Bhaskar Roberts}, title = {{ANARKey}: A New Approach to (Socially) Recover Keys}, howpublished = {Cryptology {ePrint} Archive, Paper 2025/551}, year = {2025}, url = {https://eprint.iacr.org/2025/551} }