cryptsetup-suspend - 2:2.7.2-2 main

Cryptsetup provides an interface for configuring encryption on block
devices (such as /home or swap partitions), using the Linux kernel
device mapper target dm-crypt. It features integrated Linux Unified Key
Setup (LUKS) support.
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This package provides suspend mode integration for cryptsetup. It takes
care of removing LUKS master key from memory before system suspend.
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Please note that the suspend mode integration is limited to LUKS devices
and requires systemd. Moreover, this is an early implementation and may not
be as mature as the other cryptsetup-* packages yet.