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java.lang.Object extended by java.security.cert.PKIXParameters extended by java.security.cert.PKIXBuilderParameters
public class PKIXBuilderParameters
Parameters used as input for the PKIX CertPathBuilder
algorithm.
A PKIX CertPathBuilder uses these parameters to build a CertPath which has been
validated according to the PKIX certification path validation algorithm.
To instantiate a PKIXBuilderParameters object, an
application must specify one or more most-trusted CAs as defined by
the PKIX certification path validation algorithm. The most-trusted CA
can be specified using one of two constructors. An application
can call PKIXBuilderParameters(Set, CertSelector), specifying a
Set of TrustAnchor objects, each of which
identifies a most-trusted CA. Alternatively, an application can call
PKIXBuilderParameters(KeyStore, CertSelector), specifying a
KeyStore instance containing trusted certificate entries, each
of which will be considered as a most-trusted CA.
In addition, an application must specify constraints on the target
certificate that the CertPathBuilder will attempt
to build a path to. The constraints are specified as a
CertSelector object. These constraints should provide the
CertPathBuilder with enough search criteria to find the target
certificate. Minimal criteria for an X509Certificate usually
include the subject name and/or one or more subject alternative names.
If enough criteria is not specified, the CertPathBuilder
may throw a CertPathBuilderException.
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.
CertPathBuilder
| Constructor Summary | |
|---|---|
PKIXBuilderParameters(KeyStore keystore,
CertSelector targetConstraints)
Creates an instance of PKIXBuilderParameters that
populates the set of most-trusted CAs from the trusted
certificate entries contained in the specified KeyStore. |
|
PKIXBuilderParameters(Set<TrustAnchor> trustAnchors,
CertSelector targetConstraints)
Creates an instance of PKIXBuilderParameters with
the specified Set of most-trusted CAs. |
|
| Method Summary | |
|---|---|
int |
getMaxPathLength()
Returns the value of the maximum number of intermediate non-self-issued certificates that may exist in a certification path. |
void |
setMaxPathLength(int maxPathLength)
Sets the value of the maximum number of non-self-issued intermediate certificates that may exist in a certification path. |
String |
toString()
Returns a formatted string describing the parameters. |
| Methods inherited from class java.lang.Object |
|---|
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public PKIXBuilderParameters(Set<TrustAnchor> trustAnchors, CertSelector targetConstraints) throws InvalidAlgorithmParameterException
PKIXBuilderParameters with
the specified Set of most-trusted CAs.
Each element of the set is a TrustAnchor.
Note that the Set is copied to protect against
subsequent modifications.
trustAnchors - a Set of TrustAnchorstargetConstraints - a CertSelector specifying the
constraints on the target certificate
InvalidAlgorithmParameterException - if trustAnchors
is empty (trustAnchors.isEmpty() == true)
NullPointerException - if trustAnchors is
null
ClassCastException - if any of the elements of
trustAnchors are not of type
java.security.cert.TrustAnchorpublic PKIXBuilderParameters(KeyStore keystore, CertSelector targetConstraints) throws KeyStoreException, InvalidAlgorithmParameterException
PKIXBuilderParameters that
populates the set of most-trusted CAs from the trusted
certificate entries contained in the specified KeyStore.
Only keystore entries that contain trusted X509Certificates
are considered; all other certificate types are ignored.
keystore - a KeyStore from which the set of
most-trusted CAs will be populatedtargetConstraints - a CertSelector specifying the
constraints on the target certificate
KeyStoreException - if keystore has not been
initialized
InvalidAlgorithmParameterException - if keystore does
not contain at least one trusted certificate entry
NullPointerException - if keystore is
null| Method Detail |
|---|
public void setMaxPathLength(int maxPathLength)
CertPathBuilder instance must not build
paths longer than the length specified.
A value of 0 implies that the path can only contain a single certificate. A value of -1 implies that the path length is unconstrained (i.e. there is no maximum). The default maximum path length, if not specified, is 5. Setting a value less than -1 will cause an exception to be thrown.
If any of the CA certificates contain the
BasicConstraintsExtension, the value of the
pathLenConstraint field of the extension overrides
the maximum path length parameter whenever the result is a
certification path of smaller length.
maxPathLength - the maximum number of non-self-issued intermediate
certificates that may exist in a certification path
InvalidParameterException - if maxPathLength is set
to a value less than -1getMaxPathLength()public int getMaxPathLength()
setMaxPathLength(int) method for more details.
setMaxPathLength(int)public String toString()
toString in class PKIXParameters
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JavaTM 2 Platform Standard Ed. 5.0 |
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