CycloneDX Validator

Purpose & User Intent: The CycloneDX Validator Online validates CycloneDX SBOM files (XML or JSON) against the CycloneDX specification to ensure structural conformance and correctness. It is designed for software supply chain engineers, security teams, and auditors who require deterministic SBOM quality before release or during compliance checks. The tool supports standard CycloneDX formats and detects issues such as missing top-level fields, invalid component references, and non-conforming dependencies. Conceptually, the validator decouples syntax checks from semantic checks, allowing automation to distinguish fatal errors from warnings. Core logic & features: The validator parses the input, detects format, and applies schema-based conformance checks against CycloneDX definitions. Required features include verification that top-level fields exist (bomFormat, specVersion, version) and that components are present with basic attributes; optional/advanced features cover checks for licenses, hashes, purls, suppliers, and external references, as well as detection of duplicate components and simple dependency anomalies. The system outputs a structured report detailing errors, warnings, and a pass/fail status, with a machine-readable payload suitable for CI pipelines. Inputs & Outputs: Inputs consist of a single SBOM file in XML or JSON; outputs include a concise summary, a list of issues with location hints, and a detailed per-component report. Validation results provide severities (critical, major, minor) and paths to the offending nodes to facilitate remediation. Algorithms & Calculations: The tool relies on schema validation against CycloneDX core schema versions, performing both syntactic validation and basic semantic checks. It determines the applicable schema version, validates required structures, and aggregates issues by category to support triage. Error & Edge Cases: It gracefully handles malformed files, unreadable inputs, unsupported formats, and missing required sections with precise error messages. It notes schema-version mismatches and reports non-fatal warnings when optional fields are absent. Industry/Region & Localization: The tool adheres to international CycloneDX standards; messages are delivered in English and can be surfaced in automated logs for global teams. It does not assume regional licensing rules. Assumptions & Exclusions: Assumes a syntactically correct SBOM in CycloneDX format; it does not generate or mutate SBOMs, perform deep policy checks, or combine multiple SBOMs; batch validation via API or CLI may be offered separately.