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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
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package org.bouncycastle.jcajce;
import java.security.cert.CertPathParameters;
import java.security.cert.CertSelector;
import java.security.cert.CertStore;
import java.security.cert.PKIXParameters;
import java.security.cert.TrustAnchor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.bouncycastle.asn1.x509.GeneralName;
/**
* This class extends the PKIXParameters with a validity model parameter.
*/
public class PKIXExtendedParameters
implements CertPathParameters
{
/**
* This is the default PKIX validity model. Actually there are two variants
* of this: The PKIX model and the modified PKIX model. The PKIX model
* verifies that all involved certificates must have been valid at the
* current time. The modified PKIX model verifies that all involved
* certificates were valid at the signing time. Both are indirectly choosen
* with the {@link PKIXParameters#setDate(Date)} method, so this
* methods sets the Date when all certificates must have been
* valid.
*/
public static final int PKIX_VALIDITY_MODEL = 0;
/**
* This model uses the following validity model. Each certificate must have
* been valid at the moment where is was used. That means the end
* certificate must have been valid at the time the signature was done. The
* CA certificate which signed the end certificate must have been valid,
* when the end certificate was signed. The CA (or Root CA) certificate must
* have been valid, when the CA certificate was signed and so on. So the
* {@link PKIXParameters#setDate(Date)} method sets the time, when
* the end certificate must have been valid. It is used e.g.
* in the German signature law.
*/
public static final int CHAIN_VALIDITY_MODEL = 1;
/**
* Builder for a PKIXExtendedParameters object.
*/
public static class Builder
{
private final PKIXParameters baseParameters;
private final Date date;
private PKIXCertStoreSelector targetConstraints;
private List extraCertStores = new ArrayList();
private Map namedCertificateStoreMap = new HashMap();
private List extraCRLStores = new ArrayList();
private Map namedCRLStoreMap = new HashMap();
private boolean revocationEnabled;
private int validityModel = PKIX_VALIDITY_MODEL;
private boolean useDeltas = false;
private Set trustAnchors;
public Builder(PKIXParameters baseParameters)
{
this.baseParameters = (PKIXParameters)baseParameters.clone();
CertSelector constraints = baseParameters.getTargetCertConstraints();
if (constraints != null)
{
this.targetConstraints = new PKIXCertStoreSelector.Builder(constraints).build();
}
Date checkDate = baseParameters.getDate();
this.date = (checkDate == null) ? new Date() : checkDate;
this.revocationEnabled = baseParameters.isRevocationEnabled();
this.trustAnchors = baseParameters.getTrustAnchors();
}
public Builder(PKIXExtendedParameters baseParameters)
{
this.baseParameters = baseParameters.baseParameters;
this.date = baseParameters.date;
this.targetConstraints = baseParameters.targetConstraints;
this.extraCertStores = new ArrayList(baseParameters.extraCertStores);
this.namedCertificateStoreMap = new HashMap(baseParameters.namedCertificateStoreMap);
this.extraCRLStores = new ArrayList(baseParameters.extraCRLStores);
this.namedCRLStoreMap = new HashMap(baseParameters.namedCRLStoreMap);
this.useDeltas = baseParameters.useDeltas;
this.validityModel = baseParameters.validityModel;
this.revocationEnabled = baseParameters.isRevocationEnabled();
this.trustAnchors = baseParameters.getTrustAnchors();
}
public Builder addCertificateStore(PKIXCertStore store)
{
extraCertStores.add(store);
return this;
}
public Builder addNamedCertificateStore(GeneralName issuerAltName, PKIXCertStore store)
{
namedCertificateStoreMap.put(issuerAltName, store);
return this;
}
public Builder addCRLStore(PKIXCRLStore store)
{
extraCRLStores.add(store);
return this;
}
public Builder addNamedCRLStore(GeneralName issuerAltName, PKIXCRLStore store)
{
namedCRLStoreMap.put(issuerAltName, store);
return this;
}
public Builder setTargetConstraints(PKIXCertStoreSelector selector)
{
targetConstraints = selector;
return this;
}
/**
* Sets if delta CRLs should be used for checking the revocation status.
*
* @param useDeltas true if delta CRLs should be used.
*/
public Builder setUseDeltasEnabled(boolean useDeltas)
{
this.useDeltas = useDeltas;
return this;
}
/**
* @param validityModel The validity model to set.
* @see #CHAIN_VALIDITY_MODEL
* @see #PKIX_VALIDITY_MODEL
*/
public Builder setValidityModel(int validityModel)
{
this.validityModel = validityModel;
return this;
}
/**
* Set the trustAnchor to be used with these parameters.
*
* @param trustAnchor the trust anchor end-entity and CRLs must be based on.
* @return the current builder.
*/
public Builder setTrustAnchor(TrustAnchor trustAnchor)
{
this.trustAnchors = Collections.singleton(trustAnchor);
return this;
}
/**
* Set the set of trustAnchors to be used with these parameters.
*
* @param trustAnchors a set of trustAnchors, one of which a particular end-entity and it's associated CRLs must be based on.
* @return the current builder.
*/
public Builder setTrustAnchors(Set trustAnchors)
{
this.trustAnchors = trustAnchors;
return this;
}
/**
* Flag whether or not revocation checking is to be enabled.
*
* @param revocationEnabled true if revocation checking to be enabled, false otherwise.
*/
public void setRevocationEnabled(boolean revocationEnabled)
{
this.revocationEnabled = revocationEnabled;
}
public PKIXExtendedParameters build()
{
return new PKIXExtendedParameters(this);
}
}
private final PKIXParameters baseParameters;
private final PKIXCertStoreSelector targetConstraints;
private final Date date;
private final List extraCertStores;
private final Map namedCertificateStoreMap;
private final List extraCRLStores;
private final Map namedCRLStoreMap;
private final boolean revocationEnabled;
private final boolean useDeltas;
private final int validityModel;
private final Set trustAnchors;
private PKIXExtendedParameters(Builder builder)
{
this.baseParameters = builder.baseParameters;
this.date = builder.date;
this.extraCertStores = Collections.unmodifiableList(builder.extraCertStores);
this.namedCertificateStoreMap = Collections.unmodifiableMap(new HashMap(builder.namedCertificateStoreMap));
this.extraCRLStores = Collections.unmodifiableList(builder.extraCRLStores);
this.namedCRLStoreMap = Collections.unmodifiableMap(new HashMap(builder.namedCRLStoreMap));
this.targetConstraints = builder.targetConstraints;
this.revocationEnabled = builder.revocationEnabled;
this.useDeltas = builder.useDeltas;
this.validityModel = builder.validityModel;
this.trustAnchors = Collections.unmodifiableSet(builder.trustAnchors);
}
public List getCertificateStores()
{
return extraCertStores;
}
public Map getNamedCertificateStoreMap()
{
return namedCertificateStoreMap;
}
public List getCRLStores()
{
return extraCRLStores;
}
public Map getNamedCRLStoreMap()
{
return namedCRLStoreMap;
}
public Date getDate()
{
return new Date(date.getTime());
}
/**
* Defaults to false.
*
* @return Returns if delta CRLs should be used.
*/
public boolean isUseDeltasEnabled()
{
return useDeltas;
}
/**
* @return Returns the validity model.
* @see #CHAIN_VALIDITY_MODEL
* @see #PKIX_VALIDITY_MODEL
*/
public int getValidityModel()
{
return validityModel;
}
public Object clone()
{
return this;
}
/**
* Returns the required constraints on the target certificate.
* The constraints are returned as an instance of
* Selector. If null, no constraints are
* defined.
*
* @return a Selector specifying the constraints on the
* target certificate or attribute certificate (or null)
* @see PKIXCertStoreSelector
*/
public PKIXCertStoreSelector getTargetConstraints()
{
return targetConstraints;
}
public Set getTrustAnchors()
{
return trustAnchors;
}
public Set getInitialPolicies()
{
return baseParameters.getInitialPolicies();
}
public String getSigProvider()
{
return baseParameters.getSigProvider();
}
public boolean isExplicitPolicyRequired()
{
return baseParameters.isExplicitPolicyRequired();
}
public boolean isAnyPolicyInhibited()
{
return baseParameters.isAnyPolicyInhibited();
}
public boolean isPolicyMappingInhibited()
{
return baseParameters.isPolicyMappingInhibited();
}
public List getCertPathCheckers()
{
return baseParameters.getCertPathCheckers();
}
public List getCertStores()
{
return baseParameters.getCertStores();
}
public boolean isRevocationEnabled()
{
return revocationEnabled;
}
}