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implementing-aes-encryption-for-data-at-rest

Guides implementing AES-256 encryption in GCM mode (FIPS 197) for files and data stores at rest, covering key derivation, IV/nonce management, and authenticated encryption. Use when deploying or configuring encryption for data at rest, establishing controls to meet compliance requirements, or reviewing an implementation during a security assessment.

skills/implementing-aes-encryption-for-data-at-rest/SKILL.md

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# Implementing AES Encryption for Data at Rest

## Overview

AES (Advanced Encryption Standard) is a symmetric block cipher standardized by NIST (FIPS 197) used to protect classified and sensitive data. This skill covers implementing AES-256 encryption in GCM mode for encrypting files and data stores at rest, including proper key derivation, IV/nonce management, and authenticated encryption.


## When to Use

- When deploying or configuring implementing aes encryption for data at rest capabilities in your environment
- When establishing security controls aligned to compliance requirements
- When building or improving security architecture for this domain
- When conducting security assessments that require this implementation

## Prerequisites
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