区块链作为一种多技术融合的新兴服务架构, 因其去中心化, 不可篡改等特点,
受到了学术界和工业界的广泛关注. 然而, 由于区块链技术架构的复杂性, 针对区块链的攻击方式 …

We present SimplePIR, the fastest single-server private information retrieval scheme known
to date. SimplePIR's security holds under the learning-with-errors assumption. To answer a …

This paper introduces protocols for authenticated private information retrieval. These
schemes enable a client to fetch a record from a remote database server such that (a) the …

This paper presents Checklist, a system for private blocklist lookups. In Checklist, a client
can determine whether a particular string appears on a server-held blocklist of strings …

In this paper, we study oblivious key-value stores (OKVS) that enable encoding n key-value
pairs into length m encodings while hiding the input keys. The goal is to obtain high rate …

We examined the policies of 120 of the most popular websites for when a user creates a
new password for their account. Despite well-established advice that has emerged from the …

Communication–Computation Trade-offs in PIR Page 1 This paper is included in the Proceedings
of the 30th USENIX Security Symposium. August 11–13, 2021 978-1-939133-24-3 Open access to …

The CyBOK project would like to understand how the CyBOK is being used and its uptake.
The project would like organisations using, or intending to use, CyBOK for the purposes of …

Two-factor authentication (2FA) is one of the primary mechanisms for defending end-user
accounts against phishing and password reuse attacks. Unfortunately, getting users to adopt …

区块链作为一种多技术融合的新兴服务架构, 因其去中心化, 不可篡改等特点,
受到了学术界和工业界的广泛关注. 然而, 由于区块链技术架构的复杂性, 针对区块链的攻击方式 …