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Basic filesystem encryption info

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~erin 2023-04-17 23:02:19 -04:00
parent 5e7ec9c814
commit 161e120dfa
Signed by untrusted user: erin
GPG key ID: 9A8E308CEFA37A47
1 changed files with 4 additions and 0 deletions
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4
src/development/design/filesystem.md
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@ -44,6 +44,7 @@ const CHUNK_SIZE: u16; // Example static chunk size
struct Chunk { struct Chunk {
checksum: u64, checksum: u64,
extends: bool, extends: bool,
encrypted: bool,
uuid: Uuid, uuid: Uuid,
data: [u8; CHUNK_SIZE], data: [u8; CHUNK_SIZE],
} }
@ -52,6 +53,7 @@ This struct is then encoded into bytes and written to the disk. Drivers for the
It *should* be possible to do autodetection, and maybe for *Actors* to specify which disk/partition they want to be saved to. It *should* be possible to do autodetection, and maybe for *Actors* to specify which disk/partition they want to be saved to.
Compression of the data should also be possible, due to `bincode` supporting [flate2](https://lib.rs/crates/flate2) compression. Compression of the data should also be possible, due to `bincode` supporting [flate2](https://lib.rs/crates/flate2) compression.
Similarely **AES** encryption can be used, and this allows for only specific chunks to be encrypted.[^encryption]
### Reading ### Reading
On boot, we start executing code from the beginning of the disk (the boot partition, although that's meaningless at this point). On boot, we start executing code from the beginning of the disk (the boot partition, although that's meaningless at this point).
@ -75,6 +77,8 @@ Again, whether actors can:
will be determined via [capabilities](/development/design/actor.md#ocap) will be determined via [capabilities](/development/design/actor.md#ocap)
[^encryption]: Specific details to be figured out later
[^find_chunk]: Currently via magic. I have no idea how to do this other than a simple search. Maybe generate an index, or use a **UUID**? [^find_chunk]: Currently via magic. I have no idea how to do this other than a simple search. Maybe generate an index, or use a **UUID**?
[^free_chunk]: Again, no idea how. [^free_chunk]: Again, no idea how.