Hot answers tagged oblivious-transfer
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The other answers are good but I thought I would systemize the differences with a single example. Say Bob has a database with 10 entries of the form {name, salary} and Alice would like to query it.
With PIR, Alice can retrieve any entry or entries of her choosing (say the 8th entry) without Bob learning which one. The trivial PIR is Alice just retrieves ...
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In differential privacy the concern is to protect the privacy of a single row of the database. Informally, the DP concept says that everything that can be learned from the database could be learned without access to that row. In a more technical sense, a mechanism respects this property if the distribution of the answers is almost identical (in a very strict ...
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There is a slight distinction between PIR and OT. From Wikipedia:
PIR is a weaker version of 1-out-of-n oblivious transfer, where it is also required that the user should not get information about other database items.
In other words, OT is stronger in that the receiver only gets what is requested.
Differential privacy is new to me, so I'll read up ...
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