olemus
ISO/IEC 11770-1:
võtme või ta arvutamisparameetrite valimise võime
=
ability to choose the key, or the parameters used in the key computation

standard
https://link.springer.com/article/10.1007/s10207-015-0306-9

https://www.iso.org/obp/ui/#iso:std:iso-iec:11770:-1:ed-2:v1:en

https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.691.2453&rep=rep1&type=pdf