Retention of Old PKI Certificate Authority Private Signing Key, v1.0

Addresses requirements for rentention and protection of old PKI Certificate Authority private signing keys.
If an assessment step references organization-defined elements (E.g. <organization-defined personnel or roles>, <organization-defined frequency>, etc.), corresponding citations/excerpts must be provided to confirm that the organization has established and documented these values and that they apply as referenced in the conformance criteria.

Similarly, if a "Selection" among multiple options (e.g. [Selection (one or more): as needed; ]) is specified, evidence must be provided to establish that the option(s) implemented by the organization have been defined and documented.

The assessment step shall not be marked as satisfied without this evidence.

Assessment Step

1
Retention of Old PKI Certificate Authority Private Signing Key (RetentionofOldPKICertificateAuthorityPrivateSigningKey)
When the PKI Certificate Authority's private signing key has changed, and the the old private key is used to sign PKI certificate Revocation Lists (CRLs) that cover PKI certificates signed with that key, is the old key retained and protected?
Artifact
A1
Provide evidence (e.g. organizational policies, procedures, compliance/assessment reports, etc.) that support the assessor's response to this assessment step.
If conformance criteria reference organization-defined elements (e.g. <organization-defined personnel or roles>, <organization-defined frequency>, etc.), these values must be defined and documented by the organization.

Similarly, if the criteria specify a "Selection" among multiple options (e.g. [Selection (one or more): as needed; ]), the option(s) implemented by the organization must also be defined and documented.

Conformance Criteria (1)

C1
If the old private key is used to sign CRLs that cover certificates signed with that key, then the old key must be retained and protected.
Citation
FBCA-CP
Section 5.6.