olemus
räsirünne,
eesmärgiga leida originaal,
mis vastab etteantud kujutisele, st räsile

piltlikult
https://image.slidesharecdn.com/networksecuritylec5-100403102257-phpapp01/95/network-security-lec5-14-728.jpg

https://image.slidesharecdn.com/networksecuritylec5-100403102257-phpapp01/95/network-security-lec5-15-728.jpg

https://image.slidesharecdn.com/biclique-1333698912478-phpapp01-120406025828-phpapp01/95/bicliques-for-preimages-attacks-on-skein512-and-the-sha2-family-6-728.jpg

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

https://tools.ietf.org/html/rfc4270

näiteid
https://www.crypto.ethz.ch/publications/files/KneKho12.pdf

https://eprint.iacr.org/2009/479.pdf

https://eprint.iacr.org/2019/607.pdf

vt ka
- lisaoriginaalirünne