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This's a simple utility that uses option --key-file of cryptsetup to use a key generated by a Trezor device instead of a password. Also if you want to do that manually, you can use utility trezorCipherKeyValue instead of this one.

Install:

go get github.com/xaionaro-go/trezorLuks
go install github.com/xaionaro-go/trezorLuks

Example:

`go env GOPATH`/bin/trezorLuks luksFormat /dev/loop0
`go env GOPATH`/bin/trezorLuks luksOpen /dev/loop0 mySecureStorage

With a custom key (default key name is "luks"):

`go env GOPATH`/bin/trezorLuks --trezor-key-name myKey luksFormat /dev/loop0
`go env GOPATH`/bin/trezorLuks luksOpen /dev/loop0 mySecureStorage

Passing an option to cryptsetup:

`go env GOPATH`/bin/trezorLuks -- --verbose luksOpen /dev/loop0 mySecureStorage

Session example:

$ sudo ./trezorLuks luksFormat /dev/loop0
Sent the request to the Trezor device (please confirm the operation if required)
Running: cryptsetup [--key-file - luksFormat /dev/loop0]

$ sudo ./trezorLuks luksOpen /dev/loop0 test
Sent the request to the Trezor device (please confirm the operation if required)
Running: cryptsetup [--key-file - luksOpen /dev/loop0 test]

$ ls -ld /dev/mapper/test
lrwxrwxrwx 1 root root 7 Jun  9 17:25 /dev/mapper/test -> ../dm-0

$ sudo ./trezorLuks luksClose test
Running: cryptsetup [luksClose test]

$ ls -ld /dev/mapper/test
ls: cannot access '/dev/mapper/test': No such file or directory

See also:

Other projects (to encrypt FS using Trezor):

Documentation: