[Encryption] swap versus partition

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If the swap partition is not set up to be encrypted, they no password is necessary. You can do this and we have done it in other courses. IF you use a swap file instead of a partition, then it will use the encryption of the filesystem it is on. Note that with SSDs swap files are no longer looked down upon so much instead of partitions, and Ubuntu uses only swap files by default now. Some distros now use zswap which uses compressed memory for swap now (Fedora does this) but it can be a little tricky to set up if it doesn't come out of the box by default.