HSM

Definitions

1. Short for hardware security module, a dedicated device or service designed to generate, store, and use cryptographic keys inside tamper-resistant hardware. HSMs are commonly used for certificate authorities, code signing, payment systems, and other high-trust key operations.

   In plain English: A secure hardware device used to protect and use important cryptographic keys.

   Example: "The signing keys were moved into an HSM so they never had to exist in plaintext on the application server."

Related Terms

• Encryption Key Management
• Envelope Encryption
• Ephemeral Key
• Hardware Security Module
• Key Ceremony
• Key Derivation
• Key Escrow
• Key Exchange
• Root of Trust