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Oblivious Transfer of secrets between two parties is a very useful primitive for the construction of larger cryptographic schemes. It is a method by which a commodity from a set is transferred from a sender to a receiver based on the receiver's choice. However, the sender should be oblivious to the choice that the receiver made, i.e. he should be unaware of which commodity the receiver is in possession of at the end of the transaction. Oblivious Transfer has applications in the areas of secure multiparty computation, Private Information Retrieval (PIR), fair electronic contract signing, oblivious secure computation, etc.
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