olemus
valitava avatekstiga ründe variant:
tundmatule krüpteeritavale avatekstile
lisatakse väike teadaolev avatekst
= attack variant with selectable cleartext: a small known cleartext is added to the unknown cleartext to be encrypted

näiteid
autentimata päringute saatmine serverile,
mida võimaldas SSL/TLS turvaauk
vanemate versioonide ümberkõlastusmehhanismis
= sending unauthenticated requests to the server, which was enabled by a vulnerability in the renegotiation mechanism in older versions of SSL/TLS

ülevaateid
http://www.tech-faq.com/known-plaintext-attack.html

https://www.fragattacks.com/

https://papers.mathyvanhoef.com/fragattacks-slides-summary-2021-03-8.pdf

vt ka
- TLS-ümberkõlastusrünne