Evidence library · family

Handshake

54 tested rules in the 'handshake' family, 54 held.

Last reviewed 2026-10-01

54 of 54 held niche Identity, authority & delegation

What this family tests

Every rule the CAIN-42 test suites recorded under the family handshake, across 5 evidence bundles. Each rule links to its own page with the recorded result and an in-browser check of the file it came from.

ID	Rule	Bundle	Result
E31-HS-identity_capabilities	identity_capabilities: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-authentication_method	authentication_method: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-authorization_capabilities	authorization_capabilities: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-delegation_model	delegation_model: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-revocation_mechanism	revocation_mechanism: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-enforcement_boundary	enforcement_boundary: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-evidence_capabilities	evidence_capabilities: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-proof_format	proof_format: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-policy_model	policy_model: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-protocol_bindings	protocol_bindings: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-failure_behavior	failure_behavior: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-fail_closed	fail_closed: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-supported_guarantees	supported_guarantees: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E31-HS-unsupported_guarantees	unsupported_guarantees: a declaration alone never exceeds OBSERVED; probes decide	E31	held
E33-HANDSHAKE-IDENTITY	an unknown IDENTITY stops the handshake	E33	held
E33-HANDSHAKE-CAPABILITY	an unknown CAPABILITY stops the handshake	E33	held
E33-HANDSHAKE-AUTHORITY	an unknown AUTHORITY stops the handshake	E33	held
E33-HANDSHAKE-POLICY	an unknown POLICY stops the handshake	E33	held
E33-HANDSHAKE-EVIDENCE	an unknown EVIDENCE stops the handshake	E33	held
E33-HANDSHAKE-ENFORCEMENT	an unknown ENFORCEMENT stops the handshake	E33	held
E33-HANDSHAKE-PROOF	an unknown PROOF stops the handshake	E33	held
E33-HANDSHAKE-REVOCATION	an unknown REVOCATION stops the handshake	E33	held
E33-HANDSHAKE-RECOVERY	an unknown RECOVERY stops the handshake	E33	held
E34-HANDSHAKE-IDENTITY	handshake step IDENTITY is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-CAPABILITY	handshake step CAPABILITY is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-DELEGATION	handshake step DELEGATION is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-AUTHORITY	handshake step AUTHORITY is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-POLICY	handshake step POLICY is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-EVIDENCE	handshake step EVIDENCE is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-ENFORCEMENT	handshake step ENFORCEMENT is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-PROOF	handshake step PROOF is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-REVOCATION	handshake step REVOCATION is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-RECOVERY	handshake step RECOVERY is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-CONFORMANCE	handshake step CONFORMANCE is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
E34-HANDSHAKE-ECONOMY	handshake step ECONOMY is required; unknown yields GOVERNANCE_UNKNOWN	E34	held
handshake	every 'handshake' invariant in this bundle (5 of 5 held)	E38	held
E41-HANDSHAKE-IDENTITY	handshake step IDENTITY is required	E41	held
E41-HANDSHAKE-CAPABILITY	handshake step CAPABILITY is required	E41	held
E41-HANDSHAKE-AUTHORITY	handshake step AUTHORITY is required	E41	held
E41-HANDSHAKE-POLICY	handshake step POLICY is required	E41	held
E41-HANDSHAKE-EVIDENCE	handshake step EVIDENCE is required	E41	held
E41-HANDSHAKE-ENFORCEMENT	handshake step ENFORCEMENT is required	E41	held
E41-HANDSHAKE-PROOF	handshake step PROOF is required	E41	held
E41-HANDSHAKE-REVOCATION	handshake step REVOCATION is required	E41	held
E41-HANDSHAKE-RECOVERY	handshake step RECOVERY is required	E41	held
E41-HS2-IDENTITY	handshake step IDENTITY cannot be omitted	E41	held
E41-HS2-CAPABILITY	handshake step CAPABILITY cannot be omitted	E41	held
E41-HS2-AUTHORITY	handshake step AUTHORITY cannot be omitted	E41	held
E41-HS2-POLICY	handshake step POLICY cannot be omitted	E41	held
E41-HS2-EVIDENCE	handshake step EVIDENCE cannot be omitted	E41	held
E41-HS2-ENFORCEMENT	handshake step ENFORCEMENT cannot be omitted	E41	held
E41-HS2-PROOF	handshake step PROOF cannot be omitted	E41	held
E41-HS2-REVOCATION	handshake step REVOCATION cannot be omitted	E41	held
E41-HS2-RECOVERY	handshake step RECOVERY cannot be omitted	E41	held

Other families in this niche

domain · moat · capability · action · authorization_binding · aip · research · state_machine · agency_graph · relationship · revocation · credential · telemetry · integrity · operation_kind · graph · service_passport · radar · risk · event_kind · non_authority · binding · action_binding · operation_state

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