Implement strong encryption using AES, RSA, TLS, and proper key management. Use when securing data at rest, in transit, or implementing end-to-end encryption.

Data Encryption Table of Contents [Overview]( overview) [When to Use]( when to use) [Quick Start]( quick start) [Reference Guides]( reference guides) [Best Practices]( best practices) Overview Implement robust encryption strategies for protecting sensitive data at rest and in transit using industry standard cryptographic algorithms and key management practices. When to Use Sensitive data storage Database encryption File encryption Communication security Compliance requirements (GDPR, HIPAA, PCI DSS) Password storage End to end encryption Quick Start Minimal working example: Reference Guides Detailed implementations in the references/ directory: Guide Contents [Node.js Encryption Library](references/nodejs encryption library.md) Node.js Encryption Library [Python Cryptography Implementation](references/python cryptography implementation.md) Python Cryptography Implementation [Database Encryption (PostgreSQL)](references/database encryption postgresql.md) Database Encryption (PostgreSQL) [TLS/SSL Configuration](references/tlsssl configuration.md) TLS/SSL Configuration Best Practices ✅ DO Use AES 256 GCM for symmetric encryption Use RSA 4096 or ECC for asymmetric encryption Implement proper key rotation Use secure key storage (HSM, KMS) Salt and hash passwords Use TLS 1.2+ for transit encryption Implement key derivation (PBKDF2, Argon2) Use authenticated encryption ❌ DON'T Roll your own crypto Store keys in code Use ECB mode Use MD5 or SHA1 Reuse IVs/nonces Use weak key lengths Skip authentication tags

data-encryption