Research Article
Fair Secure Computation with Reputation Assumptions in the Mobile Social Networks
Box 1
The description of functionality ShareGen in the fail-stop setting.
Functionality ShareGen | (1) Inputs: ShareGen takes as input a value (resp. ) form (resp. ). | If either input is of no vail, then ShareGen returns to both parties. | (2) Computation: It includes the following steps: | (a) Choose a value such that ( is a constant and is the threshold of Shamir's | secret sharing scheme), so (see Lemma 3). | (b) Generate two shares , of such that . | (c) Randomly select two degree polynomials and , where and . | (3) Outputs: ShareGen sends to and to , where . |
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