olemus
ISO/IEC 9798, 11770, 18014:
andmeelement, millega saab kontrollida,
kas sõnum on taasesitus,
näiteks juhuarv, jadanumber, ajatempel
=
data item used to verify that a message is not a replay,
such as a random number, sequence number, or a time stamp

ISO/IEC 10181:
andmeüksus, mille abil olem kontrollib, kas
sõnum pole taasesitus
=
a data item used by an entity to verify
that a message is not a replay