Identity Chains

Andrew Egbert; Brad Chun; Thomas Otte

Paper 2016/469

Identity Chains

Andrew Egbert, Brad Chun, and Thomas Otte

Abstract

In this short technical summary, the authors describe how the mathematical primitives of Ring Confidential Transactions may be used to provide anonymous identity authentication services in a similar manner to "Anonrep" but in a trustless (or permissioned), distributed manner, and with the additional security and resilience provided by a blockchain. The use of the mathematics in the RingCT paper additionally, and importantly, allows for combining different types of authentication in a seamless manner, in essence if the Bitcoin or Monero blockchain is a single "thread," then the protocol here allows one to "weave" such threads together. The resulting protocol is dubbed an "Identity Chain" and provides anonymous authentication working in a lightweight and interoperable manner between any number of different service providers running different identity chains.

Metadata

Available format(s): PDF
Category: Applications
Publication info: Preprint.
Keywords: Ring Confidential Transactions Identity Chains MLSAG ring signatures authentication anonrep
Contact author(s): divbit @ mail com
History: 2016-05-17: received
Short URL: https://ia.cr/2016/469
License: CC BY

BibTeX

@misc{cryptoeprint:2016/469,
      author = {Andrew Egbert and Brad Chun and Thomas Otte},
      title = {Identity Chains},
      howpublished = {Cryptology {ePrint} Archive, Paper 2016/469},
      year = {2016},
      url = {https://eprint.iacr.org/2016/469}
}