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mysql-encryption

Configure Percona Server keyring backends and enable data-at-rest encryption.

1|1|Updated May 29, 2026
Search Tags:#encryption#mysql#keyring#percona-server#data-at-rest#master-key#binlog-encryption
One-click install
npx skills add https://github.com/Percona-Lab/skills --skill mysql-encryption
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: mysql-encryption
Source: https://github.com/Percona-Lab/skills/tree/main/mysql-encryption
Command: npx skills add https://github.com/Percona-Lab/skills --skill mysql-encryption

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Data-at-rest encryption and keyring management in Percona Server for MySQL. This Skill explains the two-tier master-key hierarchy, how to enable encryption for tablespaces, binary/relay logs, redo/undo logs, and temp files, and how to pick and load a keyring backend (file, Vault, KMIP, AWS KMS) with correct startup ordering.

Core Features & Use Cases

  • Data-at-rest encryption across InnoDB, binlogs, redo/undo logs, and temporary files.
  • Keyring backends: file, Vault, KMIP, AWS KMS, with guidance on startup loading and rotation.
  • Safe master-key rotation and key-wrapping strategies to minimize downtime and data loss.

Quick Start

Install or configure a keyring component and ensure it loads at startup to enable encryption.

Frequently Asked Questions about mysql-encryption

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How does data-at-rest encryption work in Percona Server for MySQL?▼

Data-at-rest encryption in Percona Server uses a two-tier master-key hierarchy to secure InnoDB tablespaces and logs. The keyring component manages the master keys, which wrap individual tablespace keys to protect database files on disk.

Can I use HashiCorp Vault or AWS KMS as a keyring backend for MySQL encryption?▼

Yes, Percona Server supports file, Vault, KMIP, and AWS KMS keyring backends for MySQL encryption. You choose a backend based on your security requirements and configure the component to load correctly at server startup.

How do I rotate master keys to minimize downtime during MySQL encryption?▼

Master-key rotation in Percona Server is handled safely through the keyring component to minimize downtime and data loss. The process rewraps tablespace keys with new master keys without requiring a full database shutdown.

Does binary log encryption require the keyring component to load before startup?▼

Yes, binary log and relay log encryption require the keyring component to be loaded at server startup. Correct startup ordering is essential because the server needs the keyring available immediately to encrypt and decrypt log files.

What are the limitations of using the file-based keyring for MySQL data-at-rest encryption?▼

The file-based keyring stores master keys locally, making it less secure than external backends like Vault or AWS KMS. It is suitable for development but should be avoided in production where centralized key management and strict access controls are required.

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