The attacker can specify his own plain text and encrypt or sign it.
-1
votes
1answer
100 views
Chosen Plaintext Attacks
Assuming the ability to launch Chosen Plaintext Attacks (CPA), how many oracle calls an attacker
needs to break the affine cipher? and how
-4
votes
1answer
96 views
Indistinguishability CPA and CCA2
I am study security notions in two lecture and I am cofusing with the concepts IND-CCA and IND-CPA2. About IND-CCA in wikipedia say
Indistinguishability under chosen ciphertext attack/adaptive chosen
...