Client-side encryption

About: Client-side encryption is a research topic. Over the lifetime, 3734 publications have been published within this topic receiving 82657 citations.

Secure Communication Using Encryption, Challenges and Open Issues

Abstract: Security is the fundamental concern in information systems and the data they carry that can be in either one of the three states: stationary or in transit or being processed. Institutions usually use computer systems that form part of the Internet/internet to carry their data thus making it vulnerable to attacks. In this paper we look at providing security using encryption to protect data/information. Different types of encryption schemes and cryptographic services are surveyed. Steps to create a cryptographic scheme are illustrated. Merit/demerits of the schemes, challenges and open issues in this area of cryptography are

Method and device for encryption/decryption of an input data sequence

Abstract: The invention relates to the general field of digital security and more particularly cryptography. It proposes in particular a device and a method for encrypting a data sequence. The invention also relates to a cryptographic device (1) and method for generating a pseudo-random data sequence (13) and their favoured use in the field of digital security, namely in particular for data encryption and decryption and for the cryptographic hashing of messages.

A Unified Scheme of Hierarchical Attribute-Based Encryption

Abstract: Cloud computing, as an emerging computing paradigm, enables users to remotely store their data into a cloud so as to enjoy scalable services on-demand. Especially for small and medium-sized enterprises with limited budgets, they can achieve cost savings and productivity enhancements by using cloud-based services to manage projects, to make collaborations, and the like. However, allowing cloud service providers (CSPs), which are not in the same trusted domains as enterprise users, to take care of confidential data, may raise potential security and privacy issues. To keep the sensitive user data confidential against untrusted CSPs, a natural way is to apply cryptographic approaches, by disclosing decryption keys only to authorized users. However, when enterprise users outsource confidential data for sharing on cloud servers, the adopted encryption system should not only support fine-grained access control, but also provide high performance, full delegation, and scalability, so as to best serve the needs of accessing data anytime and anywhere, delegating within enterprises, and achieving a dynamic set of users. In this paper, we propose a scheme to help enterprises to efficiently share confidential data on cloud servers. We achieve this goal by first combining the hierarchical identity-based encryption (HIBE) system and the ciphertext-policy attribute-based encryption (CP-ABE) system, and then making a performance-expressivity trade-off, finally applying proxy re-encryption and lazy re-encryption to our scheme.

Confidential Safeguard Access Control in Shared Clouds

Abstract: Cloud computing is a buzz express which means that accessing and storing of data and programs over the Internet in its position of your computer's hard drive. Protection and secrecy represent major concerns in the acceptance of cloud technologies for information storage. A insolent issue is how to crumble access control policies such that 2 layer encryption can be achieve. To overcome these problem proposed go a step further in the decentralization process in two layer broadcast encryption schema, by eliminate the group manager preliminary unit of the set, with an advantage of the addition of supporting members to the coordination, does not want any central authorization. Our comprehension formulate black-box operate of well-known primeval and can be considered as an enlargement to the subset-cover structure. It permits for efficient substance instantiations, with parameter extent that matches those of the subset-cover constructions; although at the same time achieving the maximum security level in the paradigm representation. It utilize an resourceful scatter group key management scheme to facilitate communicative ACPs. Our coordination assures the confidentiality of the data and preserves the privacy of users from the cloud although delegating most of the access power enforcement to the cloud. Existing market inclination needs Products to be developed at elevated swiftness. To meet those requirements sometimes it requires collaboration between the organizations. Since of the proficient services that are being obtainable by the cloud service providers today, lots of business organizations started compelling advantage of cloud services. Specifically, Cloud computing enables a new form of service in that a service can be realized by components provided by different enterprises or entities in a collaborative manner. Contributing parties are commonly loosely connected and they are responsible for managing and protecting resources/data consign to them. Such situation demands advanced and modern mechanisms for better security and privacy protection of data shared among multiple participating parties. In this, we insinuate accesses manipulate delegation approach that achieves federated security services and preserves autonomy and privacy sharing preferences of involved parties. An important feature of our mechanism is that each party will not need to reveal its own sensitive information when making a global decision with other collaborators, which will support an extensive range of collaboration and create extra business opportunities.

Challenges in 802.11 encryption algorithms: The need for an adaptive scheme for improved performance

Abstract: Wireless LAN (WLAN), despite its popularity, is subject to various security threats. Encrypting the data being transmitted is one of the approaches to address such risks. However, encryption algorithms are known to be computationally intensive and the relation between the strength of encryption and computational intensity is inversely proportional. In this paper, we discuss the challenges in the implementation of encryption algorithm in WLAN. We then compare and analyze the results of experiments to compare these algorithms vis-a-vis their energy consumption. It will be seen that different encryption schemes are fit for different types of messages. We propose an intelligent encryption scheme for optimal security.