‡ Institute of Metabolism and Systems Research (IMSR), University of Birmingham, B15 2TT, Birmingham, United Kingdom ∇ Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, ...

In many practical applications, however, a fine-grained delegation of decryption abilities may be demanded, and thus, the notion of conditional PRE (C-PRE) is introduced, which allows only the ...