Michel Abdalla Dario Catalano Dario Fiore Verifiable Random Functions from Identity-Based Key Encapsulation. 554-571 2009 EUROCRYPT http://dx.doi.org/10.1007/978-3-642-01001-9_32 conf/eurocrypt/2009 db/conf/eurocrypt/eurocrypt2009.html#AbdallaCF09