For , use a constant.cw file (fixed keys for a single channel):
A: Not directly. You need an Enigma2 set-top box or a device running an OSCam client (like an Android box with the OSCam app). Free CCcam Oscam Server
The legality of CCcam/OSCam is a gray area. While owning the receiver and software is generally legal, using them to access unlicensed pay-TV content is a violation of copyright laws in most regions. Free Server CCCam - Stable & Reliable Satellite TV Access For , use a constant