Editing Chosen-plaintext attack (section)

===Caesar cipher===
The following attack on the [[Caesar cipher]] allows full recovery of the secret key:
# Suppose the adversary sends the message: {{code|Attack at dawn}},
# and the oracle returns {{code|Nggnpx ng qnja}}.
# The adversary can then work through to recover the key in the same way as a Caesar cipher. The adversary could deduce the substitutions {{nowrap|{{code|A}} → {{code|N}}}}, {{nowrap|{{code|T}} → {{code|G}}}} and so on. This would lead the adversary to determine that 13 was the key used in the Caesar cipher.

With more intricate or complex encryption methodologies the decryption method becomes more resource-intensive, however, the core concept is still relatively the same.