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A Break in the Clouds: Towards a Cloud Definition

Most current security solutions are based on perimeter security. However, Cloud computing breaks the organization perimeters. When data resides in the Cloud, they reside outside the organizational bounds. This leads users to a loos of control over their data and raises reasonable security concerns that slow down the adoption of Cloud computing. Is the Cloud service provider accessing the data? Is it legitimately applying the access control policy defined by the user? This paper presents a data-centric access control solution with enriched role-based expressiveness in which security is focused on protecting user data regardless the Cloud service provider that holds it. Novel identity-based and proxy re-encryption techniques are used to protect the authorization model. Data is encrypted and authorization rules are cryptographically protected to preserve user data against the service provider access or misbehavior. The authorization model provides high expressiveness with role hierarchy and resource hierarchy support. The solution takes advantage of the logic formalism provided by Semantic Web technologies, which enables advanced rule management like semantic conflict detection. A proof of concept implementation has been developed and a working prototypical deployment of the proposal has been integrated within Google services.

SecRBAC: Secure data in the Clouds

The importance of encryption in most organizations, therefore, it became necessary to encrypt data because data security is an essential component in order to maintain the security of data and information in various institutions. Encryption also helps to ensure the confidentiality and integrity of data during transmission through communication channels. Given the importance of the keys used in encryption as a key part in the strength of the algorithm and increase its security in most encryption algorithms, thus generating the key in many research the most important part in data encryption and its importance lies in the non-duplication of keys to ensure better results and theoretically impossible to break. In this paper, we try to describe and review many of the papers that were used to create the keys and compare them with each other.

Subject Review : Key Generation in Different Cryptography Algorithm

A cloud storage method and a cloud storage system are provided. The method includes: generating, by a QKD system on a terminal side and a QKD system on at least one cloud server side, at least one quantum key over a quantum network; sending, by the QKD system, the at least one quantum key to the key management terminal for storage; and obtaining, by a cloud storage client, the at least one quantum key from the key management terminal, and processing the at least one quantum key to generate a combined key by a predetermined encryption algorithm.

Cloud storage method and system

With the extraordinary maturity of data exchange in network environments and increasing the attackers capabilities, information security has become the most important process for data storage and communication. In order to provide such information security the confidentiality, data integrity, and data origin authentication must be verified based on cryptographic encryption algorithms. This paper presents a development of the advanced encryption standard (AES) algorithm, which is considered as the most eminent symmetric encryption algorithm. The development focuses on the generation of the integration between the developed AES based S-Boxes, and the specific selected secret key generated from the quantum key distribution.

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Innovative Method for Enhancing Key Generation and Management in the AES- Algorithm

The concept of “cloud computing” is not new, it is undisputable that they have proven a major commercial success over recent times. Cloud computing is the delivery of computing services by shared resources, software and information over the internet (public) or intranet (private). The improvement of cloud technology is reinforced by the improvement of the security concerns, accordingly various encryption algorithms have been developed. This paper provides a comparative study that represents the differences between modern encryption algorithms in cloud computing. The study encompasses the key size, the performance and the size of the output encrypted file based two different categorizes of algorithms (symmetric and asymmetric).

A comparative study between modern encryption algorithms based on cloud computing environment

Recently, Quantum cryptography researchers utilize the quantum keys, in order to provide a more trusted environment for both key distribution and management processes. The quantum keys are generated based on quantum mechanics phenomena. However, all events for the quantum key generation rely on exchanging photons between parties over limited distances. So, in this paper, random tests algorithms, such as NIST and DIEHARD, are implemented to test and evaluate the randomness rates for quantum keys generation. After then, the initialized vector, which is the seed of the symmetric encryption algorithms, is established based on specific analysis to be a key for the algorithms. The paper utilizes the (BB84) quantum key distribution (QKD) protocol based on two different innovated modes, the raw and privacy modes.

Statistical analysis for random bits generation on quantum key distribution

This paper presents a development of the advanced encryption standard (AES) algorithm, which is considered as the most important symmetric encryption algorithm. The development focuses on the generation of dynamic quantum S-Boxes (DQS-Boxes) based quantum cipher key, instead of the ordinary used static S-Boxes. Moreover, the paper introduces the integration between the developed AES based DQS-Boxes, and the specific selected secret key generated from the QKD using two different modes (online and off-line).

Advanced encryption standard development based quantum key distribution

Cloud computing is a modern emerging trend in distributed computing technology that is rapidly gaining popularity in the network communication field Such network communication is an Internet-based computing, where shared resources, software, and information are provided with computers and devices on-demand The concept of "cloud computing" is not new, it has proven a major commercial success over recent times and it is also considered "the delivery of computing model" through shared resources, software and information over the internet (public) or intranet (private) This innovative technology affords a new era of an electronic-service in diverse subject areas This paper shows the role of cloud computing services and applications in different sectors, which in turn helps individuals and organizations to understand how cloud computing can provide them with customized, engine requirements, reliable and cost-effective services in a wide variety of applications Furthermore, this context discusses a number of affecting factors, such as security, resource availability, cost, interoperability, precautions, and roadmap in healthcare, education, financial, agriculture and library sectors Finally, the paper showcased the pros and cons of using cloud computing technology in different sectors It additionally diagnosed the security factor that is a critical element in slowing down the adoption of cloud computing in various applications and institutions

Omer K. Jasim Mohammad

Papers

Innovative Method for Enhancing Key Generation and Management in the AES- Algorithm

A comparative study between modern encryption algorithms based on cloud computing environment

Statistical analysis for random bits generation on quantum key distribution

Advanced encryption standard development based quantum key distribution

Recent Trends of Cloud Computing Applications and Services in Medical, Educational, Financial, Library and Agricultural Disciplines