is there any software in Linux (not receiver related, but pure Linux with DVB API) that implements a softciplus?
I didn't named it "softciplus" It just ciplus implementation worked with ci+ CAM and based on dream ciplus souces and software aes decrypting by openssl lib. And yes, it's version of very popular linux dvb soft.
using Software decrypt for AES will just keep your CPU pretty busy and is useless, as all up-to-date broadcom SOC can do the job nicely. On a PC of course the story is different ....
For my view software aes decrypt get less resources when csa decrypt. At orange pi pc with 2 core arm processor aes decrypt get about 5-10% cpu time. Just for information...