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A comment on Show HN: Read Wikipedia privately using homomorphic encryption. Parent comment

Re:Show HN: Read Wikipedia privately using homomorphic encry... by ddjsn111 on Wednesday June 08, 2022 @04:12PM (#31673334)
How does the server select the article in a way that we can be sure they don't record the article sent back? Are the articles encrypted on the server too?
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Re:Show HN: Read Wikipedia privately using homomorphic encry... by sp332 on Wednesday June 08, 2022 @04:17PM (#31673393)
Yes, in fact the article number is not even decrypted by the server, so the server doesn't know which article you asked for!
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Re:Show HN: Read Wikipedia privately using homomorphic encry... by kaoD on Wednesday June 08, 2022 @04:51PM (#31673931)
How is this not vulnerable to side-channel attacks like disk-access patterns?

Could I, as a malicious server, request myself a target article and correlate that with legitimate user requests?

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Re:Show HN: Read Wikipedia privately using homomorphic encry... by sodality2 on Wednesday June 08, 2022 @04:56PM (#31674019)
> With a proper implementation of PIR, the server still needs to scan through the entire encrypted dataset (this is unavoidable, otherwise its I/O patterns would leak information)

https://news.ycombinator.com/item?id=31669370 (not original poster)

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