( = ciphertext indistinguishability
under chosen plaintext attack)

olemus
krüptosüsteemi ründekindlust iseloomustav omadus,
krüptogrammide eristamatus valitud avatekstiga ründe korral

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

https://www.uio.no/studier/emner/matnat/its/TEK4500/h20/lectures/lecture-3---symmetric-encryption-ind-cpa-ctr.pdf

https://eprint.iacr.org/2013/690.pdf

https://cs.gmu.edu/~gordon/teaching/isa562/notes/lecture_2.pdf

https://blog.cryptographyengineering.com/why-ind-cpa-implies-randomized-encryption/