ToIn order to add authentication features to CP-ABE [cpABE][1] cpABEthis CP-ABE scheme, I have tried to combine it with the ABS scheme proposed by Maji et. al [maji][2] majiABS scheme proposed by Maji et. al.
I want to use the sign() and verify() algorithms of ABS scheme. But the problem is that the two scheme support different access policy structures; CP-ABE uses access trees to define access policy whereas the ABS uses monotone span program (MSP). I want to know what
What changes I need to makeare necessary for the two access policy structures to work them together? Like howFor example, can I change thetranslate an MSP access policy defined in MSP to an access treestree? I really appreciate the help.