Specifically, we build an efficient key-policy attribute-based encryption scheme, and prove its security in the selective sense from learning-with-errors intractability in the standard model.
Category / Keywords: public-key cryptography / Expressive cryptography, functional encryption, ABE, LWE, lattices. Publication Info: TCC 2013 (to appear) Date: received 21 Dec 2012, last revised 31 Dec 2012 Contact author: xb at boyen org Available formats: PDF | BibTeX Citation Version: 20121231:150710 (All versions of this report) Discussion forum: Show discussion | Start new discussion