Published Paper Details:

Cryptography is the study of the various process which are implemented to protect information and communications, through the use of mathematical concepts and rule-based calculations but intruder is able to read our data so we need some method to make this data unreadable by the intruder we do this by encryption (enciphering) is a cryptographic process where we convert plain text or raw data to unintelligible information (cipher) by processing the data with an algorithm . Decryption (deciphering)is a cryptographic process where we convert cipher back to plaintext by processing. the encryption and decryption techniques that we are using should be fast in nature so when it reaches the recipient, the recipient should be able to decrypt that data fast because time is extremely valuable and the recipient cannot sit and decrypt that data for one to two hours it should be decrypted in minutes. Aim of this paper is to use different cryptography algorithm to protect file stored on cloud. The present paper involves some security goals in the process of cryptography we need to absolutely protect the confidentiality of the data so cryptography is the study that helps us deal with that it protect the confidentiality of data , when we are implementing cryptography that means there exist confidentiality. Second goal is integrity means that the data should have its original meaning should have its original structure when it reaches the recipient so if we write something in beginning right and u convert it into cipher ,when we send the cipher over to the recipient and the recipient deciphers it converts it back into plain text the plain text should represent exactly what the sender sent in the first place so the data should have maintained its integrity. Third is availability it means that the people who require that data should have it basically instantly right they should not have any delay with getting that nobody should be able to interrupt to the process of them getting that data right so this particular aspect is called availability. So this another goal of cryptography to maintain integrity to secure and strongly store information into the cloud, by splitting data into several chunks and storing parts of it on cloud in a manner that preserves data confidentiality, integrity and ensures availability. For this purpose we searched different published research articles online on cloud cryptography algorithm. Published research articles were selected from IEEE and Springer nature journals. Total seven articles between the years 2010 to 2021 were taken for the purpose of present paper. Our methodology guarantees the security and protection of customer sensitive data by utilizing AES, DES and RC2 calculation. By using all the encryption techniques a fair unit of confidentiality, authentication, integrity, access control and availability of data is maintained. Using cryptography Electronic Mail Security, Mail Security, IP Security, Web Security can be achieved.