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OCSP certificate revocation

Overview

Issue Metadata

Issue

Dev Contacts

QE Contacts

Affected Projects or Components

  • Security

Other Interested Projects

Requirements

Hard Requirements

  • New class X509RevocationTrustManager

  • Configurable certificate revocation using OCSP. This will be implemented using PKIXRevocationChecker.

  • Configuration will be done using Builder class and will include:

    • Current configuration in X509CRLExtendedTrustManager

    • OCSP Responder URI for overriding default, where the default is retrieved from AIA extension (RFC5280) or from ocsp.responderURL security property

    • Default revocation mechanism (OCSP/CRL) in a form of prefer-crls (by default OCSP if preferred)

    • Fallback behaviour - cases for unavailable CRL / OCSP responder services

    • Checking of leaf certificates only

  • Deprecating X509CRLExtendedTrustManager, both mechanisms will share one class for fallback purposes and easier configuration

Current subsystem CRL configuration:

<trust-manager name="trust-with-ocsp-crl" algorithm="PKIX" key-store="ElytronCaTruststore">
    <certificate-revocation-list path="crl.pem" maximum-cert-path="2"/>
</trust-manager>

Proposed subsystem configuration:

<trust-manager name="trust-with-ocsp-crl" algorithm="PKIX" key-store="ElytronCaTruststore" soft-fail="true" only-leaf-cert="true" maximum-cert-path="2">
    <certificate-revocation-list path="crl.pem"/>
    <ocsp responder="responderUri" prefer-crls="true" responder-certificate="certalias" responder-keystore="responder-store"/>
</trust-manager>

New subsystem configuration elements:

  • trust-manager elements:

    • soft-fail can pass certificates, where revocation status could not be obtained due to network or internal responder error. This is optional false by default.

    • only-leaf-cert will check revocation status of only the leaf certificate. This is optional and false by default.

    • maximum-cert-path moved from certificate-revocation-list to trust-manager, as this can be used by OCSP without CRL configured.

  • ocsp element:

    • responder this overrides OCSP Responder URI resolved from certificate.

    • prefer-crls when both OCSP and CRL is configured, OCSP will be executed first by default. When prefer-crls is true, CRL will be checked first instead.

    • responder-keystore alternative keystore for responder certificate. responder-certificate must be defined.

    • responder-certificate alias for responder certificate located int responder-keystore or trust-manager keystore if responder-keystore is not defined Order of revocation mechanisms (if both are defined) will be based on attribute of ocsp - prefer-crls, defaults to false (OCSP prioritized by default).

Other configuration is done using security properties of elytron subsystem, see: https://docs.oracle.com/javase/8/docs/technotes/guides/security/certpath/CertPathProgGuide.html#AppC

Elytron client configuration

Current elytron-client configuration:

<ssl-context name="ssl-crl-context">
    <trust-store key-store-name="ca"/>
    <certificate-revocation-list path="crl.pem" maximum-cert-path=4/>
</ssl-context>

Proposed elytron-client configuration:

<ssl-context name="ssl-crl-context">
    <trust-store key-store-name="ca"/>
    <trust-manager algorithm="PKIX" maximum-cert-path=4 soft-fail="true" only-leaf-cert="true"/>
    <certificate-revocation-list path="crl.pem"/>
    <ocsp responder="responderUri" prefer-crls="true" responder-certificate="certalias" responder-keystore="responder-store"/>
</ssl-context>

Note: This RFE does not officially support OCSP stamping, but as the stamping support released with JDK9 JEP249 is configured using Security and System properties, it will be possible to configure and use it. Issues related to OCSP stamping will likely have another RFE with tests and more documentation.

Nice-to-Have Requirements

Non-Requirements

Test Plan

  • OCSP tests in Elytron using mock OCSP Responder

Community Documentation

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