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