Enhancing Security Solutions with Collaborative Cryptography and Digital Signature Scheme in Cloud services

Abstract

Abstract-The cloud computing environment provides storage spaces for the shared data operations. The cloud file storage security is provided with Hybrid Cryptography technique. The Hybrid Cryptography technique integrates the Advanced Encryption Standard (AES), Blowfish, Rivest Cipher 6 (RC6) and Byte rotation algorithm (BRA) based symmetric cryptography methods. The data file is divided into 8 segments and each segment is encrypted with a secret key cryptography algorithm. The encrypted file is transferred to the cloud user with reference to the request value. The image steganography is employed to transfer the key values to the cloud users. The encrypted cloud services are build with Collaborative Cryptography and digital signature techniques. The collaborative cryptography model combines the symmetric and asymmetric cryptography algorithms. The RSA and Elliptic Curve Cryptography (ECC) algorithms are applied to improve the security levels. The Key Distribution Center (KDC) is build to manage the key distribution activities with image steganography technique. The digital signatures are used to verify the data transmission operations. The Message Digest 6 (MD6) Algorithm is adapted for the data integrity verification process.