Enhancing data security using DNA algorithm in cloud storage

Abstract

With exponential growth of data, it is hard to store the data locally. To overcome this issue, the individuals and organizations move forward to store their data in cloud. In some cloud storage systems, like electronic health record system, the cloud contains several sensitive information that should not be exposed to unauthorized users. To ensure this, we propose a strong encryption technique using an efficient DNA encryption algorithm. To secure the data, even if an attack occurred it is not possible for an attacker to leak the sensitive information of the user, because of the strongly proposed DNA algorithm. In this scheme, a private key generator is used for an individual’s authentication process to generate a unique key to log in. For sanitizing the sensitive information, the sanitizer verifies the corresponding data and signature of the EHR to be a valid one to store them in the cloud. Third-party auditor is used to verify and audit the integrity of the signature stored in cloud on behalf of the organization. To ensure the encrypted data is safe, we propose a decrypting tool, where if the attacker tries to attack or decrypt the sensitive information, the data could not be decrypted and will not be in a user-readable format.