[C2C CTF 2023] A Challenge Fit For A Substitute Teacher
Description:
f u b s w r j s u s k b
Hints:
PlainText: a b c d e f g h i j k l m n o p q r s t u v w x y z
CipherText: d e f g h i j k l m n o p q r s t u v w x y z a b c
PlainText: a b c d e f g h i j k l m n o p q r s t u v w x y z
CipherText: d e f g h i j k l m n o p q r s t u v w x y z a b c
Solution
This is ROT-3 cipher, the decoder for which can be found here. The text decodes to c r y p t o g p r p h y.
Flag
FLAG{cryptography}
Written on May 18, 2023