Remember AES
Full name: Advanced Encryption Standard
Memory aid: Advanced Encryption uses the Same secret on both sides.
AES key size is different from its 128-bit block size.
Study area: Cryptography & trust · Batch 3
Relevant study for: CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline · ISC2 SSCP · CompTIA SecurityX · Cybersecurity Architect SC-100 · ISC2 CCSP · Security, Compliance, and Identity Fundamentals SC-900
Practice with exam flashcards →Cybersecurity & Identity / Knowledge library
AES — Advanced Encryption Standard
Provides a standardized symmetric block cipher.
Why learn AES — Advanced Encryption Standard?
Provides a standardized symmetric block cipher.
Where it came from
AES key size is different from its 128-bit block size.
- Memory aid (a learning cue, not the expansion): Advanced Encryption uses the Same secret on both sides.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand AES: Advanced Encryption Standard.
- Recall this memory aid: Advanced Encryption uses the Same secret on both sides.
- Explain the practical use: Provides a standardized symmetric block cipher.
- Explain this distinction: AES key size is different from its 128-bit block size.
- Identify AES in a device specification, architecture diagram, or system inventory.
Documentation and sources
- NIST cybersecurity glossary (csrc.nist.gov)