We consider the counterfactual protocol proposed in Phys. Rev. Lett., 103, 230501 (2009) within a device independent framework and show how its security can easily be compromised. Capitalising on the fact that the protocol is based on the use of a single photon entanglement phenomenon, we propose an equivalent protocol. It can be made secure within such a pessimistic framework against a supra-quantum Eve limited only by the no-signalling principle. The equivalence the protocol demonstrates the possibility of device independent framework for counterfactual quantum cryptography.
One of the hardest challenges in marriage are how to face negative thoughts that arised from difficult
situations such as feeling inferior, abandoned, mistrust, and excessive jealousy. From the Cognitive-
Behavioral perspective, these feelings are being exacerbated by unhealthy individual thought patterns
originating from society and family upbringing. This article discusses the unhealthy thought patterns
that are common in marriage, and strategies in changing these thought patterns by using healthy
templates of Islamic thought patterns.