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Access control systems are among the most critical security components. Faulty policies, misconfigurations, or flaws in software implementation can result in serious vulnerabilities. The specification of access control policies is often a challenging problem. Often a system’s privacy and security are compromised due to the misconfiguration of access control policies instead of the failure of cryptographic primitives or protocols. This problem becomes increasingly severe as software systems...
Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics (On-demand self-service, Broad network access, Resource pooling, Rapid elasticity, Measured Service); three...
NEW! Request for Information | Evaluating and Improving NIST Cybersecurity Resources: The NIST Cybersecurity Framework and Cybersecurity Supply Chain Risk Management --> Latest updates: Completed errata update of Special Publication (SP) 800-161r1 (Revision 1), Cybersecurity Supply Chain Risk Management Practices for Systems and Organizations to clarify NIST guidance on aspects such as vulnerability advisory reports and software bill of materials and fix errors like inaccurate numbering of...
Cloud computing has become the core accelerator of the US Government's digital business transformation. NIST is establishing a Multi-Cloud Security Public Working Group (MCSPWG) to research best practices for securing complex cloud solutions involving multiple service providers and multiple clouds. The White House Executive Order on Improving the Nation's Cybersecurity highlights that “the Federal Government needs to make bold changes and significant investments in order to defend the vital...
NIST has defined cloud computing in NIST SP 800-145 document as a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. For more than a decade, cloud computing has offered cost savings both in terms of capital expenses and operational expenses, while leveraging...
NIST, in collaboration with the industry, is developing the Open Security Controls Assessment Language (OSCAL), a set of hierarchical, formatted, XML- JSON- and YAML-based formats that provide a standardized representation for different categories of security information pertaining to the publication, implementation, and assessment of security controls. The OSCAL website provides an overview of the OSCAL project, including tutorials, concepts, references, downloads, and much more. OSCAL is...
Recently, what are known as “pairings” on elliptic curves have been a very active area of research in cryptography. A pairing is a function that maps a pair of points on an elliptic curve into a finite field. Their unique properties have enabled many new cryptographic protocols that had not previously been feasible. In particular, identity-based encryption (IBE) is a pairing-based scheme that has received considerable attention. IBE uses some form of a person (or entity’s) identification to...
One primary objective of enterprise computing (via a data center, cloud, etc.) is the controlled delivery of data services (DSs) to its users. Typical DSs include applications such as email, workflow management, enterprise calendar, and records management, as well as system level features, such as file, access control and identity management. Although access control (AC) currently plays an important role in securing DSs, if properly designed, AC can be more fundamental to computing than one...