olemus
ISO/IEC 13888:
teenus, mis on määratud kaitsma saadud sõnumi sisu teadmise
väära eitamise eest
= service intended to protect against a recipient's false denial of having taken notice of the content of a received message
Note. The exact format and specifications depend on the chosen mechanism.

vt ka
- saamise salgamatus
- saamistalong