Define Cryptanalysis

Cryptanalysis denotes the study of analyzing information systems for studying the hidden aspects of the systems. Cryptanalysis studies the cipher text, ciphers and even cryptosystems, which is the process of secret code systems in order to find out weaknesses in them that would allow retrieval of the plain text from the cipher text without inevitably knowing the algorithm or the key. Cryptanalysis enables you to gain access to the contents of encrypted messages whether the cryptographic key is unidentified. Cryptographic algorithms can be mathematically analyzed and cryptanalysis also includes the study of side-channel attacks which do not target weaknesses in the cryptographic algorithms on their own but rather exploit weaknesses in their implementation. There is a drastic change in the methods and techniques used in cryptanalysis as compared to the methods used earlier. There has been a vast development in the complexities in crypto analysis with an increasing use of mathematically advanced computerized schemes at present. In today’s time, the processes for breaking modern cryptosystems contains solving carefully created problems. Academic attacks are often against a weak cryptosystem. It is possible for the whole cryptosystem to be strong even though the execution is difficult as more rounds are added to the cryptosystem and this is possible even when the reduced round variants are weak.