Paper 2021/510 Original: eprint.iacr.org/2021/510 ↗
Signer and Message Ambiguity from a Variety of Keys
Abstract
A signer and message ambiguous signature enables a recipient to request a signer to sign a sensible message such that the signer cannot guess what message he signed and the receiver cannot deduce the signer's identity. In this work, we formalize this type of signature, introduce the corresponding security requirements and describe two instantions. The first one assumes that the signer hides his identity in $n$ independently generated public keys, while the second one assumes that all $n$ public keys share the same public parameters.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2021-04-23: last updated
- 2021-04-23: published
- Short URL
- https://ia.cr/2021/510
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2021/510,
author = {George Teseleanu},
title = {Signer and Message Ambiguity from a Variety of Keys},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/510},
year = {2021},
url = {https://eprint.iacr.org/2021/510}
}