In the standard principal-supervisor-agent model with collusion, Tirole (1986) shows that employing a supervisor is profitable for the principal if the supervisor’s signal of the agent’s cost of production is “hard” (i.e., verifiable but hideable). Anecdotal evidence suggests that information is sometimes “soft” (i.e., unverifiable). We show that, in fact, it is profitable to employ a superviso...

Modeling and Formal Verification of a Telecom System Block Using MDGs

Article history: Received 27 September 2012 Received in revised form 21 May 2013 Accepted 26 May 2013 Available online xxxx

The auction scheme that provides receipt-freeness, prevents the bidders from bid-rigging by the coercers. Bid-rigging is a dangerous attack in electronic auction. This happen if the bidder gets a receipt of his bidding price, which proves his bidding prices, from the auction protocol. The coercers used to force the bidders to disclose their receipts and hence bidders lose the secrecy of their b...

We present the formal verification of a low-power x86 floating-point multiplier. The multiplier operates iteratively and feeds back intermediate results in redundant representation. It supports x87 and SSE instructions in various precisions and can block the issuing of new instructions. The design has been optimized for low-power operation and has not been constrained by the formal verification...

Formal verification aims at providing a rigid and thorough means of evaluating the correctness of security protocols and also establishing that the protocols are free of weaknesses that can be exploited by attacks. This paper discusses the process of formal verification using a logic–based verification tool. The verification tool with attack detection capabilities is introduced, and the verific...

Property-based design has multiple applications in the domain of formal verification. We have developed a tool capable of automatically generating an exact implementation from a set of finite PSL properties.