Poster: End-to-End Secure Mobile Group Messaging with Conversation Integrity and Minimal Metadata Leakage
Poster: End-to-End Secure Mobile Group Messaging with Conversation Integrity and Minimal Metadata Leakage
复制标题
海报：具有对话完整性和最小元数据泄漏的端到端安全移动群组消息传递
DOI：
10.1145/3243734.3278506
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Hopper, Nicholas
中科院分区：
文献类型：
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作者：
Schliep, Michael;Hopper, Nicholas
现有的端到端安全消息传递应用程序信任单个服务提供商以一致的顺序向一致的会话成员组传递消息。我们提出了一个协议，通过使用多个服务提供商来消除这种单点故障，只要N个服务提供商中有一个诚实地行事，就可以强制执行会话完整性。但是，这种方法可能会增加学习会话元数据的实体数量。在这项工作中，我们讨论的挑战，并提供了一个协议，限制现有的消息传递应用程序的元数据泄漏，同时仍然提供强大的会话完整性。
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.