POSTER: End-to-End Secure Mobile Group Messaging with Conversation Integrity and Minimal Metadata Leakage

Mike Schliep; Nicholas Hopper

doi:10.1145/3243734.3278506

POSTER: End-to-End Secure Mobile Group Messaging with Conversation Integrity and Minimal Metadata Leakage

Mike Schliep, Nicholas Hopper

Computer Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

Existing End-to-End secure messaging applications trust a single service provider to deliver messages in a consistent order to a consistent group of conversation members. We propose a protocol that removes this single point of failure by using multiple service providers, enforcing conversation integrity as long as one service provider out of N behave honestly. However, this approach could potentially increase the number of entities that learn the metadata for a conversation. In this work we discuss the challenges and provide a protocol that limits the metadata leakage to that of existing messaging applications while still providing strong conversation integrity.

Original language	English (US)
Pages (from-to)	2282-2284
Number of pages	3
Journal	Proceedings of the ACM Conference on Computer and Communications Security
Volume	2018-January
DOIs	https://doi.org/10.1145/3243734.3278506
State	Published - 2018
Event	25th ACM Conference on Computer and Communications Security, CCS 2018 - Toronto, Canada Duration: Oct 15 2018 → …

Bibliographical note

Funding Information:
This work was sponsored by the National Science Foundation under grant 1814753.

Publisher Copyright:
©2018 Copyright held by the owner/author(s).

Keywords

Cryptographic Protocol
End-to-End Encryption
Secure Messaging

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10.1145/3243734.3278506

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title = "POSTER: End-to-End Secure Mobile Group Messaging with Conversation Integrity and Minimal Metadata Leakage",

abstract = "Existing End-to-End secure messaging applications trust a single service provider to deliver messages in a consistent order to a consistent group of conversation members. We propose a protocol that removes this single point of failure by using multiple service providers, enforcing conversation integrity as long as one service provider out of N behave honestly. However, this approach could potentially increase the number of entities that learn the metadata for a conversation. In this work we discuss the challenges and provide a protocol that limits the metadata leakage to that of existing messaging applications while still providing strong conversation integrity.",

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author = "Mike Schliep and Nicholas Hopper",

note = "Funding Information: This work was sponsored by the National Science Foundation under grant 1814753. Publisher Copyright: {\textcopyright}2018 Copyright held by the owner/author(s).; 25th ACM Conference on Computer and Communications Security, CCS 2018 ; Conference date: 15-10-2018",

year = "2018",

doi = "10.1145/3243734.3278506",

language = "English (US)",

volume = "2018-January",

pages = "2282--2284",

journal = "Proceedings of the ACM Conference on Computer and Communications Security",

issn = "1543-7221",

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JO - Proceedings of the ACM Conference on Computer and Communications Security

JF - Proceedings of the ACM Conference on Computer and Communications Security

Y2 - 15 October 2018

ER -

POSTER: End-to-End Secure Mobile Group Messaging with Conversation Integrity and Minimal Metadata Leakage

Abstract

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Keywords

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