Remember DES
Full name: Data Encryption Standard
Memory aid: DES is the Dated Encryption Standard cue.
Single DES is obsolete for protecting current sensitive information.
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
DES — Data Encryption Standard
Names a legacy symmetric block cipher with a small effective key size.
Why learn DES — Data Encryption Standard?
Names a legacy symmetric block cipher with a small effective key size.
Where it came from
Single DES is obsolete for protecting current sensitive information.
- Memory aid (a learning cue, not the expansion): DES is the Dated Encryption Standard cue.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand DES: Data Encryption Standard.
- Recall this memory aid: DES is the Dated Encryption Standard cue.
- Explain the practical use: Names a legacy symmetric block cipher with a small effective key size.
- Explain this distinction: Single DES is obsolete for protecting current sensitive information.
- Identify DES in a device specification, architecture diagram, or system inventory.
Documentation and sources
- NIST cybersecurity glossary (csrc.nist.gov)