Paper 2021/875

Hybrid Signal protocol for post-quantum email encryption

Sara Stadler, Vitor Sakaguti, Harjot Kaur, and Anna Lena Fehlhaber

Abstract

The Signal protocol is used in many messaging applications today. While it is an active research topic to design a post-quantum variant of the protocol, no such variant is currently realized in the real world. In the following document we describe a hybrid version of the Signal protocol, that will be implemented to achieve post-quantum security for Tutanota’s end-to-end encrypted e-mails.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint. MINOR revision.
Keywords
Signal protocolpost-quantumemail encryption
Contact author(s)
pqmail @ tutao de
History
2021-06-29: received
Short URL
https://ia.cr/2021/875
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2021/875,
      author = {Sara Stadler and Vitor Sakaguti and Harjot Kaur and Anna Lena Fehlhaber},
      title = {Hybrid Signal protocol for post-quantum email encryption},
      howpublished = {Cryptology ePrint Archive, Paper 2021/875},
      year = {2021},
      note = {\url{https://eprint.iacr.org/2021/875}},
      url = {https://eprint.iacr.org/2021/875}
}
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