(= Secure Multipurpose Internet Mail Extensions,
"mitmeotstarbelise Interneti-meili turvalaiendid")

olemus
meili krüptoprotokoll, mis põhineb standardiga X.509 määratud võtmetaristul:
(i) krüpteerimine tagab privaatsuse ja andmete turbe
(ii) digitaalne signeerimine tagab autentimise, sõnumite tervikluse ja salgamatuse
= email cryptographic protocol based on the key infrastructure defined by the X.509 standard; encryption ensures privacy and data security; digital signing ensures authentication, message integrity and non-repudiation

ülevaateid
https://en.wikipedia.org/wiki/S/MIME

https://www.heinzi.at/texte/smime.pdf

https://www.youtube.com/watch?v=wlu9hc4KoEQ

http://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-49.pdf

standard
https://tools.ietf.org/html/rfc5751

turvalisus
https://www.kb.cert.org/vuls/id/122919

https://cert.europa.eu/static/SecurityAdvisories/2018/CERT-EU-SA2018-014.pdf