As historians say, the World War 2 was not won because of military strength or army consolidation, but due to the cryptographic abilities of the nations. Day by day, as technology is advancing, there is a need of stronger encryptions which will protect our data from being misused. Thus, cryptography plays a major role in today's software industry. Hence, Codefest is bringing out Decipher, a cryptographic challenge in which the participants shall use their deducing, cryptographic and programming skills to decrypt a set of messages. We assure that the challenges put forth shall not only require using previously learnt algorithms, but require an innovative approach combined with logical and analytical skills.