coolkey: Rewrite coolkey_rsa_op() for better readability
coolkey: Rewrite coolkey_rsa_op() for better readability

Jakuje/OpenSC,hongquan/OpenSC-main,metsma/OpenSC,metsma/OpenSC,Jakuje/OpenSC,frankmorgner/OpenSC,LudovicRousseau/OpenSC,fabled/OpenSC,dengert/OpenSC,fabled/OpenSC,AktivCo/OpenSC,metsma/OpenSC,LudovicRousseau/OpenSC,mouse07410/OpenSC,frankmorgner/OpenSC,mouse07410/OpenSC,philipWendland/OpenSC,hongquan/OpenSC-main,mouse07410/OpenSC,frankmorgner/OpenSC,AktivCo/OpenSC,dengert/OpenSC,philipWendland/OpenSC,OpenSC/OpenSC,OpenSC/OpenSC,hongquan/OpenSC-main,LudovicRousseau/OpenSC,dengert/OpenSC,philipWendland/OpenSC,fabled/OpenSC,fabled/OpenSC,Jakuje/OpenSC,OpenSC/OpenSC,AktivCo/OpenSC,frankmorgner/OpenSC,Jakuje/OpenSC