Abstract

The unmatchable progress in Information Technology based Products have encouraged the customers to use free\nunlimited and ever available cloud storages. The Cloud Storages save hardware investment of customers for storage. Rapid\nData migration into cloud storages had been expected by IT industry with all of these developments. However, the growth of\ndata migration has not adopted the pace as expected because of Data security and Speed of cryptographic algorithm’s issues\nin cloud.\nIn this paper, we are discussing mainly two mostly used Cryptographic algorithms AES and 3DES and in later section we are\nalso comparing AES, 3DES with RC6, Twofish and Blowfish and we are analyzing the performance of these algorithms in\nterms of encryption and decryption time taken depending upon the four factors namely file type, file size, key type and key\nsize.\nFor performance analysis, we are introducing in-house developed Crypter tools where we have integrated five cryptographic\nalgorithms 3DES, AES, RC6, Twofish and Blowfish.The Crypter tool is deployed in Amazon Cloud and Tool is capable to\nencrypt and decrypt different types of files (in terms of size and format) depending upon variable or fixed type of key using\nAES, 3DES, RC6, Twofish and Blowfish and The performance of these Cryptographic algorithms 3DES, AES, RC6,\nTwofish and Blowfish can be analyzed in terms of time taken depending upon different types of files and different types of\nKeys. Analysis of the result obtained will help the user’s to take decision regarding the selection of best symmetric algorithm\nto be used while uploading data in cloud.