8. The method of claim 1 , wherein said input text is a search query including at least one search term, wherein transforming said input text comprises deterministically transforming said at least one search term using a first key to produce a respective at least one deterministically transformed search term, and wherein transmitting the processed input text to the server comprises transmitting the at least one deterministically transformed search term to the server.
8. The method of claim 1 , wherein said input text is a search query including at least one search term, wherein transforming said input text comprises deterministically transforming said at least one search term using a first key to produce a respective at least one deterministically transformed search term, and wherein transmitting the processed input text to the server comprises transmitting the at least one deterministically transformed search term to the server. 9. The method of claim 8 , wherein transforming said input text further comprises: non-deterministically transforming the input text using a second key to produce a non-deterministically transformed text; and combining the at least one deterministically transformed search term and the non-deterministically transformed text using a logical disjunction operator to obtain a combined processed text, wherein transmitting the processed input text to the server comprises transmitting the combined processed text to the server.