Editing Chosen-plaintext attack (section)

==Different forms==

There are two forms of chosen-plaintext attacks:

*'''Batch chosen-plaintext attack''', where the adversary chooses all of the plaintexts before seeing any of the corresponding ciphertexts. This is often the meaning intended by "chosen-plaintext attack" when this is not qualified.
*'''Adaptive chosen-plaintext attack''' ('''CPA2'''), where the adversary can request the ciphertexts of additional plaintexts after seeing the ciphertexts for some plaintexts.