IT. Expert System.

Java Standard Edition (SE)

X509CRLSelector


compact1, compact2, compact3
java.security.cert

Class X509CRLSelector

  • All Implemented Interfaces:
    Cloneable, CRLSelector


    public class X509CRLSelector
    extends Object
    implements CRLSelector
    A CRLSelector that selects X509CRLs that match all specified criteria. This class is particularly useful when selecting CRLs from a CertStore to check revocation status of a particular certificate.

    When first constructed, an X509CRLSelector has no criteria enabled and each of the get methods return a default value (null). Therefore, the match method would return true for any X509CRL. Typically, several criteria are enabled (by calling setIssuers or setDateAndTime, for instance) and then the X509CRLSelector is passed to CertStore.getCRLs or some similar method.

    Please refer to RFC 3280: Internet X.509 Public Key Infrastructure Certificate and CRL Profile for definitions of the X.509 CRL fields and extensions mentioned below.

    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.

    Since:
    1.4
    See Also:
    CRLSelector, X509CRL
    • Constructor Detail

      • X509CRLSelector

        public X509CRLSelector()
        Creates an X509CRLSelector. Initially, no criteria are set so any X509CRL will match.
    • Method Detail

      • setIssuers

        public void setIssuers(Collection<X500Principal> issuers)
        Sets the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names. If null, any issuer distinguished name will do.

        This method allows the caller to specify, with a single method call, the complete set of issuer names which X509CRLs may contain. The specified value replaces the previous value for the issuerNames criterion.

        The names parameter (if not null) is a Collection of X500Principals.

        Note that the names parameter can contain duplicate distinguished names, but they may be removed from the Collection of names returned by the getIssuers method.

        Note that a copy is performed on the Collection to protect against subsequent modifications.

        Parameters:
        issuers - a Collection of X500Principals (or null)
        Since:
        1.5
        See Also:
        getIssuers()
      • setIssuerNames

        public void setIssuerNames(Collection<?> names)
                            throws IOException
        Note: use setIssuers(Collection) instead or only specify the byte array form of distinguished names when using this method. See addIssuerName(String) for more information.

        Sets the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names. If null, any issuer distinguished name will do.

        This method allows the caller to specify, with a single method call, the complete set of issuer names which X509CRLs may contain. The specified value replaces the previous value for the issuerNames criterion.

        The names parameter (if not null) is a Collection of names. Each name is a String or a byte array representing a distinguished name (in RFC 2253 or ASN.1 DER encoded form, respectively). If null is supplied as the value for this argument, no issuerNames check will be performed.

        Note that the names parameter can contain duplicate distinguished names, but they may be removed from the Collection of names returned by the getIssuerNames method.

        If a name is specified as a byte array, it should contain a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure is as follows.

        
         Name ::= CHOICE {
           RDNSequence }
        
         RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
        
         RelativeDistinguishedName ::=
           SET SIZE (1 .. MAX) OF AttributeTypeAndValue
        
         AttributeTypeAndValue ::= SEQUENCE {
           type     AttributeType,
           value    AttributeValue }
        
         AttributeType ::= OBJECT IDENTIFIER
        
         AttributeValue ::= ANY DEFINED BY AttributeType
         ....
         DirectoryString ::= CHOICE {
               teletexString           TeletexString (SIZE (1..MAX)),
               printableString         PrintableString (SIZE (1..MAX)),
               universalString         UniversalString (SIZE (1..MAX)),
               utf8String              UTF8String (SIZE (1.. MAX)),
               bmpString               BMPString (SIZE (1..MAX)) }
         

        Note that a deep copy is performed on the Collection to protect against subsequent modifications.

        Parameters:
        names - a Collection of names (or null)
        Throws:
        IOException - if a parsing error occurs
        See Also:
        getIssuerNames()
      • addIssuer

        public void addIssuer(X500Principal issuer)
        Adds a name to the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names.

        This method allows the caller to add a name to the set of issuer names which X509CRLs may contain. The specified name is added to any previous value for the issuerNames criterion. If the specified name is a duplicate, it may be ignored.

        Parameters:
        issuer - the issuer as X500Principal
        Since:
        1.5
      • addIssuerName

        public void addIssuerName(String name)
                           throws IOException
        Denigrated, use addIssuer(X500Principal) or addIssuerName(byte[]) instead. This method should not be relied on as it can fail to match some CRLs because of a loss of encoding information in the RFC 2253 String form of some distinguished names.

        Adds a name to the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names.

        This method allows the caller to add a name to the set of issuer names which X509CRLs may contain. The specified name is added to any previous value for the issuerNames criterion. If the specified name is a duplicate, it may be ignored.

        Parameters:
        name - the name in RFC 2253 form
        Throws:
        IOException - if a parsing error occurs
      • addIssuerName

        public void addIssuerName(byte[] name)
                           throws IOException
        Adds a name to the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names.

        This method allows the caller to add a name to the set of issuer names which X509CRLs may contain. The specified name is added to any previous value for the issuerNames criterion. If the specified name is a duplicate, it may be ignored. If a name is specified as a byte array, it should contain a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure is as follows.

        The name is provided as a byte array. This byte array should contain a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure appears in the documentation for setIssuerNames(Collection names).

        Note that the byte array supplied here is cloned to protect against subsequent modifications.

        Parameters:
        name - a byte array containing the name in ASN.1 DER encoded form
        Throws:
        IOException - if a parsing error occurs
      • setMinCRLNumber

        public void setMinCRLNumber(BigInteger minCRL)
        Sets the minCRLNumber criterion. The X509CRL must have a CRL number extension whose value is greater than or equal to the specified value. If null, no minCRLNumber check will be done.
        Parameters:
        minCRL - the minimum CRL number accepted (or null)
      • setMaxCRLNumber

        public void setMaxCRLNumber(BigInteger maxCRL)
        Sets the maxCRLNumber criterion. The X509CRL must have a CRL number extension whose value is less than or equal to the specified value. If null, no maxCRLNumber check will be done.
        Parameters:
        maxCRL - the maximum CRL number accepted (or null)
      • setDateAndTime

        public void setDateAndTime(Date dateAndTime)
        Sets the dateAndTime criterion. The specified date must be equal to or later than the value of the thisUpdate component of the X509CRL and earlier than the value of the nextUpdate component. There is no match if the X509CRL does not contain a nextUpdate component. If null, no dateAndTime check will be done.

        Note that the Date supplied here is cloned to protect against subsequent modifications.

        Parameters:
        dateAndTime - the Date to match against (or null)
        See Also:
        getDateAndTime()
      • setCertificateChecking

        public void setCertificateChecking(X509Certificate cert)
        Sets the certificate being checked. This is not a criterion. Rather, it is optional information that may help a CertStore find CRLs that would be relevant when checking revocation for the specified certificate. If null is specified, then no such optional information is provided.
        Parameters:
        cert - the X509Certificate being checked (or null)
        See Also:
        getCertificateChecking()
      • getIssuers

        public Collection<X500Principal> getIssuers()
        Returns the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names. If the value returned is null, any issuer distinguished name will do.

        If the value returned is not null, it is a unmodifiable Collection of X500Principals.

        Returns:
        an unmodifiable Collection of names (or null)
        Since:
        1.5
        See Also:
        setIssuers(java.util.Collection<javax.security.auth.x500.X500Principal>)
      • getIssuerNames

        public Collection<Object> getIssuerNames()
        Returns a copy of the issuerNames criterion. The issuer distinguished name in the X509CRL must match at least one of the specified distinguished names. If the value returned is null, any issuer distinguished name will do.

        If the value returned is not null, it is a Collection of names. Each name is a String or a byte array representing a distinguished name (in RFC 2253 or ASN.1 DER encoded form, respectively). Note that the Collection returned may contain duplicate names.

        If a name is specified as a byte array, it should contain a single DER encoded distinguished name, as defined in X.501. The ASN.1 notation for this structure is given in the documentation for setIssuerNames(Collection names).

        Note that a deep copy is performed on the Collection to protect against subsequent modifications.

        Returns:
        a Collection of names (or null)
        See Also:
        setIssuerNames(java.util.Collection<?>)
      • getMinCRL

        public BigInteger getMinCRL()
        Returns the minCRLNumber criterion. The X509CRL must have a CRL number extension whose value is greater than or equal to the specified value. If null, no minCRLNumber check will be done.
        Returns:
        the minimum CRL number accepted (or null)
      • getMaxCRL

        public BigInteger getMaxCRL()
        Returns the maxCRLNumber criterion. The X509CRL must have a CRL number extension whose value is less than or equal to the specified value. If null, no maxCRLNumber check will be done.
        Returns:
        the maximum CRL number accepted (or null)
      • getDateAndTime

        public Date getDateAndTime()
        Returns the dateAndTime criterion. The specified date must be equal to or later than the value of the thisUpdate component of the X509CRL and earlier than the value of the nextUpdate component. There is no match if the X509CRL does not contain a nextUpdate component. If null, no dateAndTime check will be done.

        Note that the Date returned is cloned to protect against subsequent modifications.

        Returns:
        the Date to match against (or null)
        See Also:
        setDateAndTime(java.util.Date)
      • getCertificateChecking

        public X509Certificate getCertificateChecking()
        Returns the certificate being checked. This is not a criterion. Rather, it is optional information that may help a CertStore find CRLs that would be relevant when checking revocation for the specified certificate. If the value returned is null, then no such optional information is provided.
        Returns:
        the certificate being checked (or null)
        See Also:
        setCertificateChecking(java.security.cert.X509Certificate)
      • toString

        public String toString()
        Returns a printable representation of the X509CRLSelector.
        Overrides:
        toString in class Object
        Returns:
        a String describing the contents of the X509CRLSelector.
      • match

        public boolean match(CRL crl)
        Decides whether a CRL should be selected.
        Specified by:
        match in interface CRLSelector
        Parameters:
        crl - the CRL to be checked
        Returns:
        true if the CRL should be selected, false otherwise


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