This paper surveys the practical benefits and drawbacks of several identitybased encryption schemes based on bilinear pairings. After providing some background on identity-based cryptography, we classify the known constructions into a handful of general approaches. We then describe efficient and fully-secure IBE and IBKEM instantiations of each approach, with reducibility to practice as the mai...

background: sarcoidosis is a multisystem inflammatory disease of unknown origin with characterization of small granulomas. angiotensin-converting enzyme (ace) is a pathophysiologic marker of sarcoidosis. we present the ace insertion/deletion (i/d) polymorphism in correlation with serum ace level in iranian patients with sarcoidosis. methods: from jan 2014 to jan 2015, 102 iranian patients who h...