| TD: Minimum ECDSA Key Size for Self-Signed PKI Certificates

Minimum ECDSA Key Size for Self-Signed PKI Certificates, v1.0

This Trustmark Definition specifies a minimum ECDSA public key size for PKI.

NOTE: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

Minimum ECDSA Key Size for Self-Signed PKI Certificates (MinimumECDSAKeySizeforSelf-SignedPKICertificates)

If the PKI Certificate Authority distributes self-signed PKI certificates to relying parties, are the CA's subject public keys in such PKI certificates at least 224 bits for ECDSA?

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

For CAs that distribute self-signed certificates to relying parties, the CA's subject public keys in such certificates shall be at least 224 bits for ECDSA.

Citation

FBCA-CP

Section 6.1.5.

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Metadata

Identifier https://artifacts.trustmarkinitiative.org/lib/tds/minimum-ecdsa-key-size-for-self-signed-pki-certificates/1.0/

Publication Date 2018-10-30

Issuing Organization
Trustmark Initiative (https://trustmarkinitiative.org/) View Contact

Trustmark Support help@trustmarkinitiative.org 555-555-5555 No Mailing Address

Keywords PIV-I, Security, Identity, Federal Bridge

Issuance Criteria
yes(ALL)

Target Stakeholder Organizations that are interested in implementing or making use of digital information systems in a manner that complies with widely accepted public key infrastructure standards and practices such as the X.509 Certificate Policy For The Federal Bridge Certification Authority (FBCA).

Target Recipient Organizations that want to demonstrate that they provide and/or consume digital information services in a manner that complies with widely accepted public key infrastructure standards and practices such as the X.509 Certificate Policy For The Federal Bridge Certification Authority (FBCA).

Target Relying Party Organizations and individuals that require their trusted partners' computer and information systems to comply with widely accepted public key infrastructure standards and practices such as the X.509 Certificate Policy For The Federal Bridge Certification Authority (FBCA).

Target Provider Organizations that audit or evaluate other organizations for compliance with widely accepted public key infrastructure standards and practices such as the X.509 Certificate Policy For The Federal Bridge Certification Authority (FBCA).

Provider Eligibility Criteria Any organization or business entity may act as a Trustmark Provider for trustmarks under this Trustmark Definition.

Assessor Qualifications Any individual employed or contracted by the Trustmark Provider may act as the assessor for trustmarks under this Trustmark Definition.

Trustmark Revocation Criteria For any trustmark issued under this Trustmark Definition, the Trustmark Provider must revoke the trustmark upon any condition whereby one or more Conformance Criteria cease to be satisfied.

Extension Description This Trustmark Definition requires no extension data.

Legal Notice This artifact is published by the Georgia Tech Research Institute (GTRI) as part of the Trustmark Initiative. This artifact and the information contained herein is provided on an "AS IS" basis, and GTRI disclaims all warranties, express or implied, including but not limited to any warranty that the use of the information herein will not infringe any rights or any implied warranties or merchantability or fitness for a particular purpose. In addition, GTRI disclaims legal liability for any loss incurred as a result of the use or reliance on the document or the information contained herein.

Sources (1)

FBCA-CP X.509 Certificate Policy For The Federal Bridge Certification Authority (FBCA) Version 2.27 December 2, 2013

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