Which organization publishes articles, provides tools, and creates procedures for testing and validating computer forensics software?

The correct choice is NIST. The National Institute of Standards and Technology (NIST) plays a significant role in the field of digital forensics by providing standards, guidelines, and tools that help ensure the accuracy and reliability of forensic software and processes. Their work involves publishing articles that cover advancements in the field and best practices for forensic investigations.

NIST develops the Computer Forensics Tool Testing (CFTT) program, which establishes protocols for testing and validating computer forensics tools. This initiative is vital to ensuring that the tools used in forensic investigations yield reliable results, which is crucial for legal and investigative purposes.

While other organizations may contribute to the field in various ways, NIST's specific focus on the standardization and validation of forensics tools through established procedures and thorough testing directly aligns with the question's context.