We test a self-signaling theory using two large-scale, randomized controlled field experiments. Mobile phone users are randomly sampled to receive promotional offers for movie tickets via SMS technology. Test groups are exposed to different pre-determined levels of price discounts and charitable donations tied to the ticket purchase. The main effects of price discounts and charitable donations ...

Homomorphic signatures (HS) allows the derivation of the signature of the message-function pair (m, g), where m = g(m1, . . . ,mK), given the signatures of each of the input messages mk signed under the same key. Multi-key HS (M-HS) introduced by Fiore et al. (ASIACRYPT’16) further enhances the utility by allowing evaluation of signatures under different keys. While the unforgeability of existi...

A ticket server architecture was proposed in [1] and [2] to issue tickets to ensure access to communications resources in crisis situations. End users interact directly with servers using intelligent agents that use an agent communication language. Here a hybrid simulation approach is used to assess ticket server performance requirements and network administrative overhead. The negotiation inte...

Designing an ID based signcryption scheme in the standard model is among the most interesting and important problems in cryptography. However, all the existing systems in the ID based setting, in the standard model, do not have either the unforgeability property or the indistinguishability property or both of them. In this paper, we present the first provably secure ID based signcryption scheme...

We propose a variant of the “bonsai tree” signature scheme, a lattice-based existentially unforgeable signature scheme in the standard model. Our construction offers the same efficiency as the “bonsai tree” scheme but supports the stronger notion of strong unforgeability. Strong unforgeability demands that the adversary is unable to produce a new message-signature pair (m, s), even if he or she...

Legal problems that often occur in Indonesian society are violations of the law traffic. One efforts made by enforcement officers is existence a ticket. Traffic ticket cases increasing from year to year, because nowadays we already have sophisticated technology, an E-Ticket was born which requires information system and supported software or website can disseminate every officer real time. The ...

Growing cashless services in the Sydney metropolitan region is motivated by the clear supply-side benefits associated with the prepayment of public transport fares. This paper examines the effect on prepay following the ‘MyZone’ fare and ticket reform in NSW introduced in April 2010. ‘MyZone’, introduced two new discounted and standardised prepay products, including a new, multi-modal ticket. W...