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 TransactionsIdentity ChainsMLSAGring signaturesauthenticationanonrep
Contact author(s)
divbit @ mail com
History
2016-05-17: received
Short URL
https://ia.cr/2016/469
License
Creative Commons Attribution
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},
      note = {\url{https://eprint.iacr.org/2016/469}},
      url = {https://eprint.iacr.org/2016/469}
}
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