Struct ContainerSignatureControl 

pub struct ContainerSignatureControl;

Verifies that container images have valid signatures (cosign/Sigstore).

Maps to SOC2 PI1.4: processing integrity through artifact provenance. Container image signatures bind images to the identity that produced them, enabling consumers to verify that images were not tampered with after build.

Evaluation tiers:

• Satisfied: all container images have verified signatures
• Violated: some container images lack verified signatures
• NotApplicable: no container images in evidence

Trait Implementations

impl Control for ContainerSignatureControl

fn id(&self) -> ControlId

Returns the unique identifier for this control.

fn description(&self) -> &'static str

Human-readable description for SARIF rule output.

fn evaluate(&self, evidence: &EvidenceBundle) -> Vec<ControlFinding>

Evaluates the evidence bundle and returns one finding per subject.

fn tsc_criteria(&self) -> &'static [&'static str]

SOC2 Trust Services Criteria this control maps to (e.g., &[“CC6.1”, “CC8.1”]). Returns empty slice for controls not mapped to SOC2.

fn remediation_hint(&self) -> Option<&'static str>

Actionable remediation hint shown when the control fails or needs review.