olemus
TS 419221-1:
e-allkiri, mis vastab eurodirektiivi 1999/93/EC artikli 2.2 nõuetele:
(a) on üheselt seotud allakirjutanuga,
(b) võimaldab tuvastada allakirjutanut,
(c) luuakse allakirjutanu ainukontrolli all olevate vahenditega,
(d) seotakse allkirjastatud andmetega nii, et nende iga muutmine on avastatav
= an electronic signature which meets the following requirements (defined in the Directive [i.1], article 2.2):
(a) it is uniquely linked to the signatory;
(b) it is capable of identifying the signatory;
(c) it is created using means that the signatory can maintain under his sole control, and
(d) it is linked to the data to which it relates in such a manner that any subsequent change of the data is
detectable

ülevaateid
https://en.wikipedia.org/wiki/Advanced_electronic_signature

direktiiv 1999/93
en: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex%3A31999L0093
et: http://eur-lex.europa.eu/legal-content/ET/TXT/HTML/?uri=CELEX:31999L0093&from=EN

standardid
https://www.etsi.org/deliver/etsi_en/319400_319499/31941102/02.01.01_60/en_31941102v020101p.pdf