olemus
ISO/IEC 11770-1:
hetkel või lähiajal käibivate võtmete turvalise talletuse teenus,
sealhulgas võtmete varunduseks
=
service which provides secure storage of keys intended for current or near-term use or for backup

ülevaateid
https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html

https://www.globalsign.com/en/blog/cryptographic-key-management-and-storage-best-practice

https://en.wikipedia.org/wiki/Key_server_%28cryptographic%29