yes, the card needs to support all algorithms, crypto_newsession() does this:
/* * The algorithm we use here is pretty stupid; just use the * first driver that supports all the algorithms we need. Do * a double-pass over all the drivers, ignoring software ones * at first, to deal with cases of drivers that register after * the software one(s) --- e.g., PCMCIA crypto cards. * * XXX We need more smarts here (in real life too, but that's * XXX another story altogether). */ -m