olemus
ISO 7498:
liikluse analüüsi takistav konfidentsiaalsusteenus
= a confidentiality service to protect against traffic analysis

ülevaateid
https://link.springer.com/content/pdf/10.1007%2F978-0-387-79026-8_22.pdf
https://www.rfc-editor.org/rfc/inline-errata/rfc4303.html
https://www.cvedetails.com/cve/CVE-2018-15397/