org.spongycastle.cert

Class AttributeCertificateHolder

java.lang.Object

org.spongycastle.cert.AttributeCertificateHolder

All Implemented Interfaces:

java.lang.Cloneable, org.spongycastle.util.Selector

public class AttributeCertificateHolder
extends java.lang.Object
implements org.spongycastle.util.Selector

The Holder object.

          Holder ::= SEQUENCE {
                baseCertificateID   [0] IssuerSerial OPTIONAL,
                         -- the issuer and serial number of
                         -- the holder's Public Key Certificate
                entityName          [1] GeneralNames OPTIONAL,
                         -- the name of the claimant or role
                objectDigestInfo    [2] ObjectDigestInfo OPTIONAL
                         -- used to directly authenticate the holder,
                         -- for example, an executable
          }
 

Note: If objectDigestInfo comparisons are to be carried out the static method setDigestCalculatorProvider must be called once to configure the class to do the necessary calculations.

Constructor Summary

Constructors

Constructor and Description
AttributeCertificateHolder(int digestedObjectType, org.spongycastle.asn1.ASN1ObjectIdentifier digestAlgorithm, org.spongycastle.asn1.ASN1ObjectIdentifier otherObjectTypeID, byte[] objectDigest) Constructs a holder for v2 attribute certificates with a hash value for some type of object.
AttributeCertificateHolder(org.spongycastle.asn1.x500.X500Name principal) Create a holder using the entityName option based on the passed in principal.
AttributeCertificateHolder(org.spongycastle.asn1.x500.X500Name issuerName, java.math.BigInteger serialNumber) Create a holder using the baseCertificateID element.
AttributeCertificateHolder(X509CertificateHolder cert) Create a holder using the baseCertificateID option based on the passed in associated certificate,

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone()
boolean	equals(java.lang.Object obj)
org.spongycastle.asn1.x509.AlgorithmIdentifier	getDigestAlgorithm() Returns algorithm identifier for the digest used if ObjectDigestInfo is present.
int	getDigestedObjectType() Returns the digest object type if an object digest info is used.
org.spongycastle.asn1.x500.X500Name[]	getEntityNames() Return any principal objects inside the attribute certificate holder entity names field.
org.spongycastle.asn1.x500.X500Name[]	getIssuer() Return the principals associated with the issuer attached to this holder
byte[]	getObjectDigest() Returns the hash if an object digest info is used.
org.spongycastle.asn1.ASN1ObjectIdentifier	getOtherObjectTypeID() Returns the digest algorithm ID if an object digest info is used.
java.math.BigInteger	getSerialNumber() Return the serial number associated with the issuer attached to this holder.
int	hashCode()
boolean	match(java.lang.Object obj)
static void	setDigestCalculatorProvider(DigestCalculatorProvider digCalcProvider) Set a digest calculator provider to be used if matches are attempted using ObjectDigestInfo,

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AttributeCertificateHolder

public AttributeCertificateHolder(org.spongycastle.asn1.x500.X500Name issuerName,
                                  java.math.BigInteger serialNumber)

Create a holder using the baseCertificateID element.

Parameters:

issuerName - name of associated certificate's issuer.

serialNumber - serial number of associated certificate.

AttributeCertificateHolder

public AttributeCertificateHolder(X509CertificateHolder cert)

Create a holder using the baseCertificateID option based on the passed in associated certificate,

Parameters:

cert - the certificate to be associated with this holder.

AttributeCertificateHolder

public AttributeCertificateHolder(org.spongycastle.asn1.x500.X500Name principal)

Create a holder using the entityName option based on the passed in principal.

Parameters:

principal - the entityName to be associated with the attribute certificate.

AttributeCertificateHolder

public AttributeCertificateHolder(int digestedObjectType,
                                  org.spongycastle.asn1.ASN1ObjectIdentifier digestAlgorithm,
                                  org.spongycastle.asn1.ASN1ObjectIdentifier otherObjectTypeID,
                                  byte[] objectDigest)

Constructs a holder for v2 attribute certificates with a hash value for some type of object.

digestedObjectType can be one of the following:

• 0 - publicKey - A hash of the public key of the holder must be passed.
• 1 - publicKeyCert - A hash of the public key certificate of the holder must be passed.
• 2 - otherObjectDigest - A hash of some other object type must be passed. otherObjectTypeID must not be empty.

This cannot be used if a v1 attribute certificate is used.

Parameters:

digestedObjectType - The digest object type.

digestAlgorithm - The algorithm identifier for the hash.

otherObjectTypeID - The object type ID if digestedObjectType is otherObjectDigest.

objectDigest - The hash value.

Method Detail

getDigestedObjectType

public int getDigestedObjectType()

Returns the digest object type if an object digest info is used.

• 0 - publicKey - A hash of the public key of the holder must be passed.
• 1 - publicKeyCert - A hash of the public key certificate of the holder must be passed.
• 2 - otherObjectDigest - A hash of some other object type must be passed. otherObjectTypeID must not be empty.

Returns:

The digest object type or -1 if no object digest info is set.

getDigestAlgorithm

public org.spongycastle.asn1.x509.AlgorithmIdentifier getDigestAlgorithm()

Returns algorithm identifier for the digest used if ObjectDigestInfo is present.

Returns:

digest AlgorithmIdentifier or null if ObjectDigestInfo is absent.

getObjectDigest

public byte[] getObjectDigest()

Returns the hash if an object digest info is used.

Returns:

The hash or null if ObjectDigestInfo is absent.

getOtherObjectTypeID

public org.spongycastle.asn1.ASN1ObjectIdentifier getOtherObjectTypeID()

Returns the digest algorithm ID if an object digest info is used.

Returns:

The digest algorithm ID or null if no object digest info is set.

getEntityNames

public org.spongycastle.asn1.x500.X500Name[] getEntityNames()

Return any principal objects inside the attribute certificate holder entity names field.

Returns:

an array of Principal objects (usually X500Principal), null if no entity names field is set.

getIssuer

public org.spongycastle.asn1.x500.X500Name[] getIssuer()

Return the principals associated with the issuer attached to this holder

Returns:

an array of principals, null if no BaseCertificateID is set.

getSerialNumber

public java.math.BigInteger getSerialNumber()

Return the serial number associated with the issuer attached to this holder.

Returns:

the certificate serial number, null if no BaseCertificateID is set.

clone

public java.lang.Object clone()

Specified by:

clone in interface org.spongycastle.util.Selector

Overrides:

clone in class java.lang.Object

match

public boolean match(java.lang.Object obj)

Specified by:

match in interface org.spongycastle.util.Selector

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

setDigestCalculatorProvider

public static void setDigestCalculatorProvider(DigestCalculatorProvider digCalcProvider)

Set a digest calculator provider to be used if matches are attempted using ObjectDigestInfo,

Parameters:

digCalcProvider - a provider of digest calculators.