olemus
transpositsioonšiffer, mille võti on juhuslik permutatsioon
= a transposition cipher whose key is a random permutation

ülevaateid
https://crypto.stackexchange.com/questions/43247/substitution-cipher-vs-permutation-cipher

https://en.wikibooks.org/wiki/Cryptography/Permutation_cipher

http://images.slideplayer.com/24/7326166/slides/slide_49.jpg

https://www.nku.edu/~christensen/1402%20permutation%20ciphers.pdf

vt ka
- P-teisendus
- SP-teisendus