Encrypt Stick

sudo cryptsetup luksFormat /dev/vdb1
sudo cryptsetup open /dev/vdb1 crypt_tmp
sudo mkfs.ext4 -m 0 /dev/mapper/crypt_tmp
sudo cryptsetup config /dev/sda1 --label MyLabel
sudo cryptsetup close crypt_tmp

mount from CLI

sudo cryptsetup open /dev/vdb1 crypt_tmp
sudo mount /dev/mapper/crypt_tmp /mnt