A few days ago, after a sytem update to kernel 3.19.0-56, I can not open anymore a tcrypt volume with cryptsetup. I get the following error:
sudo cryptsetup open --type tcrypt /dev/sda tcryptDisk Enter passphrase: Required kernel crypto interface not available. Ensure you have algif_skcipher kernel module loaded.
Trying to load the mentioned module does not resolve the issue:
sudo modprobe algif_skcipher
Any pointer greatly appreciated!