How to locate LUKS devices

Discover two distinct and easily sriptable methods and combine features from both of these to locate and identify LUKS devices.

Locate and display LUKS devices.

$ sudo blkid --match-token TYPE=crypto_LUKS

/dev/sda3: UUID="66a9da0f-a9a5-482c-8c27-c201685b8c17" TYPE="crypto_LUKS" PARTUUID="17303409-4d7d-4074-828b-0f4d101649a6"
/dev/loop24: UUID="b5df8ab7-a61d-404b-a1af-f763f46558f5" TYPE="crypto_LUKS"
/dev/sdc1: UUID="ac32a865-2716-43e3-8db9-798d4279a3a3" TYPE="crypto_LUKS" PARTUUID="3f3bac3f-01"

Directly identify specific device.

$ sudo cryptsetup isLuks /dev/sda3 && echo "This is a LUKS device." || echo "This is not a LUKS device"

This is a LUKS device.

$ sudo cryptsetup isLuks /dev/sda1 && echo "This is a LUKS device." || echo "This is not a LUKS device"

This is not a LUKS device