Hot Questions - Stack Exchange We make Stack Overflow and 170+ other community-powered Q&A sites. A hardware security module ( HSM ) is a security device you can add to a system to manage, generate, and securely store cryptographic keys. ... but I need it because I want to give drive encryption password via SSH and I want to hide SSH private keys. Note that I have very limited understanding of the topic – inf3rno Apr 4 ... HSM used to store ...