CLOUD SECURITY USING LEAST SIGNIFICANT BIT STEGANOGRAPHY AND DATA ENCRYPTION STANDARD ALGORITHM


Cloud security is getting more important than ever before. The cloud platform and services are regards as massive accessible data centers that can be accessed anywhere and anytime. The increase in the cloud users has unfortunately also, been accompanied by the growth in malicious activities in the cloud. Millions of people are surfing the cloud for different purposes, hence they need a highly secured environment and consistent services. The future trend of cloud computing, especially in expanding the series of applications that requires a deeper degree of privacy and authentication. Cryptography and steganography are the two famous security measures to prevent unauthorized users to access information in the cloud. The goal of cryptography is data protection while that of steganography is to enable secret communication. Cryptography transforms the original data into an unreadable format (that is, ciphertext) to the typical user whereas steganography embedded a vital message in other digital media. We proposed a simple data protection model where data is encrypted using data encryption standard (DES) and least significant bit (LSB) steganography. The proposed model was able to provide two layer security strength to the documents by preventing unauthorized users from gaining access to the documents in the cloud.