crypto_aacs_verify_cert(): check certificate length
crypto_aacs_verify_cert(): check certificate length

mwgoldsmith/aacs,rraptorr/libaacs,zxlooong/libaacs,zxlooong/libaacs,rraptorr/libaacs,mwgoldsmith/aacs,ShiftMediaProject/libaacs,ShiftMediaProject/libaacs