open-vault/website/content/docs/enterprise/hsm/index.mdx
2023-07-27 17:42:39 +00:00

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---
layout: docs
page_title: HSM Integration - Vault Enterprise
description: >-
Vault Enterprise has HSM support, allowing for external root key storage and
automatic unsealing.
---
# Vault enterprise HSM support
@include 'alerts/enterprise-and-hcp.mdx'
- Root key Wrapping: Vault protects its root key by transiting it through
the HSM for encryption rather than splitting into key shares
- Automatic Unsealing: Vault stores its HSM-wrapped root key in storage,
allowing for automatic unsealing
- [Seal Wrapping](/vault/docs/enterprise/sealwrap) to provide FIPS
KeyStorage-conforming functionality for Critical Security Parameters
- [Entropy Augmentation](/vault/docs/enterprise/entropy-augmentation) to
allow Vault to sample entropy from an external cryptographic module.
HSM support is available for devices that support PKCS#11 version 2.20+
interfaces and provide integration libraries, and is currently available for
linux/amd64 platforms only. It has successfully been tested against many
different vendor HSMs; HSMs that provide only subsets of the full PKCS#11
specification can usually be supported but it depends on available
cryptographic mechanisms.
Please note however that configuration details, flags, and supported features
within PKCS#11 vary depending on HSM model and configuration. Consult your
HSM's documentation for more details.
Some parts of Vault work differently when using an HSM. Please see the
[Behavioral Changes](/vault/docs/enterprise/hsm/behavior) page for
important information on these differences.
The [Configuration](/vault/docs/configuration/seal/pkcs11) page contains
configuration information.
Finally, the [Security](/vault/docs/enterprise/hsm/security) page contains
information about deploying Vault's HSM support in a secure fashion.