Remember PBKDF2
Full name: Password-Based Key Derivation Function 2
Memory aid: Passwords Become Keys through repeated Derivation.
Choose work factors deliberately; PBKDF2 is not inherently a memory-hard construction.
Study area: Cryptography & trust · Batch 8
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
PBKDF2 — Password-Based Key Derivation Function 2
Derives key material from a password with a salt and iteration count.
Why learn PBKDF2 — Password-Based Key Derivation Function 2?
Derives key material from a password with a salt and iteration count.
Where it came from
Choose work factors deliberately; PBKDF2 is not inherently a memory-hard construction.
- Memory aid (a learning cue, not the expansion): Passwords Become Keys through repeated Derivation.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand PBKDF2: Password-Based Key Derivation Function 2.
- Recall this memory aid: Passwords Become Keys through repeated Derivation.
- Explain the practical use: Derives key material from a password with a salt and iteration count.
- Explain this distinction: Choose work factors deliberately; PBKDF2 is not inherently a memory-hard construction.
- Identify PBKDF2 in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 8018 (www.rfc-editor.org)