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Privacy-Preserving Attribution: Testing for a New Era of Privacy in Digital Advertising (blog.mozilla.org)

submitted 2 months ago by [email protected] to c/[email protected]

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An update on Mozilla's PPA experiment and how it protects user privacy while testing cutting edge technologies to improve the open web.

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[–] [email protected] 1 points 2 months ago (1 children)

Here:

When a user interacts with an ad or advertiser, an event is logged in the browser in the form of a value. That value is then split into partial, indecipherable pieces and then encrypted. Each piece is addressed to a different entity — one to Divvi Up at ISRG and one to Mozilla — so that no single entity is ever in possession of both pieces. (...) As an additional protection, the pieces are submitted to Divvi Up and Mozilla using an Oblivious HTTP relay operated by a third organisation (Fastly). This ensures that Divvi Up and Mozilla do not even learn the IP address of the indecipherable piece they receive.

[–] [email protected] 2 points 2 months ago

A "value"!

How very specific!