AES

AES (Advanced Encryption Standard) is a symmetric-key encryption algorithm widely used for securing sensitive data. It operates on fixed block sizes of 128 bits and supports key lengths of 128, 192, or 256 bits, providing strong cryptographic protection. It is the standard for encrypting data in transit and at rest across various applications, from file systems to network protocols.

Also known as: Advanced Encryption Standard, Rijndael, AES-128, AES-256, AES encryption

Why learn AES?

Developers should learn AES when implementing data security features, such as encrypting user passwords, securing API communications, or protecting stored files. It is essential for compliance with security standards like PCI-DSS or GDPR and is commonly used in TLS/SSL for web security, database encryption, and secure messaging systems.

Learning Resources

• docs: NIST AES Standard
• video: AES Explained (YouTube)
• course: Cryptography I on Coursera
• tutorial: AES Tutorial on TutorialsPoint