03-24-2023, 03:42 PM
Project Name: Secure File Storage on cloud using Hybrid Cryptography
ABSTRACT
With the increasing reliance on cloud storage by many organizations and entities to keep the most important and confidential data, concerns are growing about the security strength of cloud storage against various threats. This paper is mainly discussing the security of cloud computing and cloud storage using hybrid cryptosystems. An analysis will be performed to compare various hybrid cryptosystems proposed for cloud storage.
The cloud is used in various fields like industry, military, college, etc. for various services and storage of huge amounts of data. Data stored in this cloud can be accessed or retrieved on the users request without direct access to the server computer. But the major concern regarding storage of data online that is on the cloud is Security. This Security concern can be solved using various ways, the most used techniques are cryptography and steganography. But sometimes a single technique or algorithm alone cannot provide high-level security. So, we have introduced a new security mechanism that uses a combination of multiple cryptographic algorithms of symmetric key and steganography. In this proposed system 3DES (Triple Data Encryption Standard), RC6 (Rivest Cipher 6) and AES (Advanced Encryption Standard) algorithms are used to provide security to data. All the algorithms use 128-bit keys. LSB steganography technique is used to securely store the key information. Key information will contain the information regarding the encrypted part of the file, the algorithm, and the key for the algorithm. Files during encryption are split into three parts. These individual parts of the file will be encrypted using different encryption algorithms simultaneously with the help of multithreading technique. The key information is inserted into an image using the LSB technique. Our methodology guarantees better security and protection of customer data by storing encrypted data on a single cloud server, using AES, DES and RC6 algorithm.
The cloud is used in various fields like industry, military, college, etc. for various services and storage of huge amounts of data. Data stored in this cloud can be accessed or retrieved on the users request without direct access to the server computer. But the major concern regarding storage of data online that is on the cloud is Security. This Security concern can be solved using various ways, the most used techniques are cryptography and steganography. But sometimes a single technique or algorithm alone cannot provide high-level security. So, we have introduced a new security mechanism that uses a combination of multiple cryptographic algorithms of symmetric key and steganography. In this proposed system 3DES (Triple Data Encryption Standard), RC6 (Rivest Cipher 6) and AES (Advanced Encryption Standard) algorithms are used to provide security to data. All the algorithms use 128-bit keys. LSB steganography technique is used to securely store the key information. Key information will contain the information regarding the encrypted part of the file, the algorithm, and the key for the algorithm. Files during encryption are split into three parts. These individual parts of the file will be encrypted using different encryption algorithms simultaneously with the help of multithreading technique. The key information is inserted into an image using the LSB technique. Our methodology guarantees better security and protection of customer data by storing encrypted data on a single cloud server, using AES, DES and RC6 algorithm.