olemus
(1) krüptograafias
ISO 11568:
üks mitmest parameetrist, mis sümmeetrilise krüptovõtme moodustamiseks ühendatakse liites mooduliga 2 (XOR);
igal komponendil on samasugune vorming (sealhulgas pikkus) nagu krütovõtmel
= one of at least two values that are combined using XOR to form a symmetric cryptographic key
Note. Each component has the same format (including length) as the cryptographic key.

NIST SP 800-57 Part 2 Rev.1:
one of at least two parameters that have the same security properties (e.g., randomness) as a cryptographic key; parameters are combined using an approved cryptographic function to form a plaintext cryptographic key before use

(2) oluline komponent kontekstist sõltuvas tähenduses
Wiktionary:
key, adj
1. indispensable, supremely important
2. important, salient

vt ka
- jaosvõti
- SplitKey