# Tag Info

## About pir

A PIR (Private Information Retrieval) protocol allows a user to retrieve an item from a server in possession of a database without revealing which item is retrieved.

A PIR (Private Information Retrieval) protocol allows a user to retrieve an item from a server in possession of a database without revealing which item is retrieved.

Private Information Retrieval 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.