public abstract class PKIXRevocationChecker extends PKIXCertPathChecker
PKIXCertPathChecker for checking the revocation status of
certificates with the PKIX algorithm.
A PKIXRevocationChecker checks the revocation status of
certificates with the Online Certificate Status Protocol (OCSP) or
Certificate Revocation Lists (CRLs). OCSP is described in RFC 2560 and
is a network protocol for determining the status of a certificate. A CRL
is a time-stamped list identifying revoked certificates, and RFC 5280
describes an algorithm for determining the revocation status of certificates
using CRLs.
Each PKIXRevocationChecker must be able to check the revocation
status of certificates with OCSP and CRLs. By default, OCSP is the
preferred mechanism for checking revocation status, with CRLs as the
fallback mechanism. However, this preference can be switched to CRLs with
the PREFER_CRLS option. In addition, the fallback
mechanism can be disabled with the NO_FALLBACK
option.
A PKIXRevocationChecker is obtained by calling the
getRevocationChecker method
of a PKIX CertPathValidator. Additional parameters and options
specific to revocation can be set (by calling the
setOcspResponder method for instance). The
PKIXRevocationChecker is added to a PKIXParameters object
using the addCertPathChecker
or setCertPathCheckers method,
and then the PKIXParameters is passed along with the CertPath
to be validated to the validate method
of a PKIX CertPathValidator. When supplying a revocation checker in
this manner, it will be used to check revocation irrespective of the setting
of the RevocationEnabled flag.
Similarly, a PKIXRevocationChecker may be added to a
PKIXBuilderParameters object for use with a PKIX
CertPathBuilder.
Note that when a PKIXRevocationChecker is added to
PKIXParameters, it clones the PKIXRevocationChecker;
thus any subsequent modifications to the PKIXRevocationChecker
have no effect.
Any parameter that is not set (or is set to null) will be set to
the default value for that parameter.
Concurrent Access
Unless otherwise specified, the methods defined in this class are not thread-safe. Multiple threads that need to access a single object concurrently should synchronize amongst themselves and provide the necessary locking. Multiple threads each manipulating separate objects need not synchronize.
| Modifier and Type | Class and Description |
|---|---|
static class |
PKIXRevocationChecker.Option
Various revocation options that can be specified for the revocation
checking mechanism.
|
| Modifier | Constructor and Description |
|---|---|
protected |
PKIXRevocationChecker()
Default constructor.
|
| Modifier and Type | Method and Description |
|---|---|
PKIXRevocationChecker |
clone()
Returns a clone of this object.
|
List<Extension> |
getOcspExtensions()
Gets the optional OCSP request extensions.
|
URI |
getOcspResponder()
Gets the URI that identifies the location of the OCSP responder.
|
X509Certificate |
getOcspResponderCert()
Gets the OCSP responder's certificate.
|
Map<X509Certificate,byte[]> |
getOcspResponses()
Gets the OCSP responses.
|
Set<PKIXRevocationChecker.Option> |
getOptions()
Gets the revocation options.
|
abstract List<CertPathValidatorException> |
getSoftFailExceptions()
Returns a list containing the exceptions that are ignored by the
revocation checker when the
SOFT_FAIL option
is set. |
void |
setOcspExtensions(List<Extension> extensions)
Sets the optional OCSP request extensions.
|
void |
setOcspResponder(URI uri)
Sets the URI that identifies the location of the OCSP responder.
|
void |
setOcspResponderCert(X509Certificate cert)
Sets the OCSP responder's certificate.
|
void |
setOcspResponses(Map<X509Certificate,byte[]> responses)
Sets the OCSP responses.
|
void |
setOptions(Set<PKIXRevocationChecker.Option> options)
Sets the revocation options.
|
check, check, getSupportedExtensions, init, isForwardCheckingSupportedpublic void setOcspResponder(URI uri)
ocsp.responderURL security property and any
responder specified in a certificate's Authority Information Access
Extension, as defined in RFC 5280.uri - the responder URIpublic URI getOcspResponder()
ocsp.responderURL security property. If this
parameter or the ocsp.responderURL property is not set, the
location is determined from the certificate's Authority Information
Access Extension, as defined in RFC 5280.null if not setpublic void setOcspResponderCert(X509Certificate cert)
ocsp.responderCertSubjectName,
ocsp.responderCertIssuerName,
and ocsp.responderCertSerialNumber security properties.cert - the responder's certificatepublic X509Certificate getOcspResponderCert()
ocsp.responderCertSubjectName,
ocsp.responderCertIssuerName,
and ocsp.responderCertSerialNumber security properties. If this
parameter or the aforementioned properties are not set, then the
responder's certificate is determined as specified in RFC 2560.null if not setpublic void setOcspExtensions(List<Extension> extensions)
extensions - a list of extensions. The list is copied to protect
against subsequent modification.public List<Extension> getOcspExtensions()
public void setOcspResponses(Map<X509Certificate,byte[]> responses)
responses - a map of OCSP responses. Each key is an
X509Certificate that maps to the corresponding
DER-encoded OCSP response for that certificate. A deep copy of
the map is performed to protect against subsequent modification.public Map<X509Certificate,byte[]> getOcspResponses()
X509Certificate that maps to the corresponding
DER-encoded OCSP response for that certificate. A deep copy of
the map is returned to protect against subsequent modification.
Returns an empty map if no responses have been specified.public void setOptions(Set<PKIXRevocationChecker.Option> options)
options - a set of revocation options. The set is copied to protect
against subsequent modification.public Set<PKIXRevocationChecker.Option> getOptions()
public abstract List<CertPathValidatorException> getSoftFailExceptions()
SOFT_FAIL option
is set. The list is cleared each time init is called.
The list is ordered in ascending order according to the certificate
index returned by getIndex
method of each entry.
An implementation of PKIXRevocationChecker is responsible for
adding the ignored exceptions to the list.
public PKIXRevocationChecker clone()
PKIXCertPathCheckerObject.clone()
method.
All subclasses which maintain state must support and
override this method, if necessary.clone in class PKIXCertPathCheckerPKIXCertPathCheckerCloneable Submit a bug or feature
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