Paper 2018/774 Original: eprint.iacr.org/2018/774 ↗
Thring Signatures and their Applications to Spender-Ambiguous Digital Currencies
Abstract
We present threshold ring multi-signatures (thring signatures) for collaborative computation of ring signatures. We discuss a game of existential forgery for thring signatures and the uses of thring signatures in digital currencies, including spender-ambiguous cross-chain atomic swaps for confidential amounts without a trusted set-up. We present an implementation of thring signatures inspired by the works of [13], [20], [14], [1], [18], and [15] we call linkable spontaneous threshold anonymous group (LSTAG) signatures, and we prove the implementation existentially unforgeable under the plain public key and random oracle models.
Metadata
- Available format(s)
PDF- Category
- Cryptographic protocols
- Publication info
- Preprint.
- History
- 2018-08-28: last updated
- 2018-08-27: published
- Short URL
- https://ia.cr/2018/774
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2018/774,
author = {Brandon Goodell and Sarang Noether},
title = {Thring Signatures and their Applications to Spender-Ambiguous Digital Currencies},
howpublished = {Cryptology {ePrint} Archive, Paper 2018/774},
year = {2018},
url = {https://eprint.iacr.org/2018/774}
}