Paper 2018/774
Thring Signatures and their Applications to Spender-Ambiguous Digital Currencies
Brandon Goodell and Sarang Noether
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.
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Metadata
- Available format(s)
-
PDF
- Category
- Cryptographic protocols
- Publication info
- Preprint. MINOR revision.
- Keywords
- ring signaturesconfidential transactionsspender ambiguitythreshold multi-signaturesthring signaturesatomic swapspublic-key cryptographyimplementationapplications
- Contact author(s)
- surae noether @ protonmail com
- History
- 2018-08-28: revised
- 2018-08-27: received
- See all versions
- Short URL
- https://ia.cr/2018/774
- License
-
CC BY
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}
}
