known_plaintext_3_300.md

Known Plaintext 3 (300)

Problem

Solve the problem using the programming interface. The input file is knownplaintext3.in.

The input is formatted [d/e] <string>. The first character specifies whether the assignment is to encrypt or to decrypt, and the string is either the plaintext or the ciphertext, depending on the first letter.

Hint

Figure it out yourself ;)

External Writeups

• https://github.com/jbmonsterbananas/easyctf-2015-writeups/blob/master/known_plaintext_3_300.md