iaik.cms

Class SignerRecipientIdentifier

java.lang.Object

iaik.cms.SignerRecipientIdentifier

All Implemented Interfaces:

ASN1Type, CertificateIdentifier, KeyIdentifier

public class SignerRecipientIdentifier
extends java.lang.Object
implements CertificateIdentifier

The CMS type SignerIdentifier/RecipientIdentifier.

SignerIdentifier (used for identifying the signer certificate of a SignerInfo) and RecipientIdentifier (used for identifying the recipient certificate of a KeyTransRecipientInfo) have the same ASN.1 syntax:

 
 SignerIdentifier ::= CHOICE {
   issuerAndSerialNumber IssuerAndSerialNumber,
   subjectKeyIdentifier [0] SubjectKeyIdentifier }
 

respectively:

 RecipientIdentifier ::= CHOICE {
   issuerAndSerialNumber IssuerAndSerialNumber,
   subjectKeyIdentifier [0] SubjectKeyIdentifier }
 

This class may represent a SignerIdentifier or a RecipientIdentifier, depending if used in a SignerInfo or in a KeyTransRecipientInfo.

Since:

Entrust 7.0

Field Summary

Fields inherited from interface iaik.cms.KeyIdentifier

ISSUER_AND_SERIALNUMBER, KEK_IDENTIFIER, ORIGINATOR_PUBLIC_KEY, RECIPIENT_KEY_IDENTIFIER, SUBJECT_KEY_IDENTIFIER

Constructor Summary

Constructors

Constructor and Description
SignerRecipientIdentifier(ASN1Object obj) Creates a SignerRecipientIdentifier from an ASN1Object.
SignerRecipientIdentifier(CertificateIdentifier certificateIdentifier) Creates a SignerRecipientIdentifier from the given IssuerAndSerialNumber or SubjectKeyID.

Method Summary

Modifier and Type	Method and Description
void	decode(ASN1Object obj) Decodes the SignerRecipientIdentifier from the given ASN1Object.
boolean	equals(java.lang.Object obj) Compares this SignerRecipientIdentifier to the specified object.
CertificateIdentifier	getCertificateIdentifier() Gets the CertificateIdentifier this SignerRecipientIdentifier represents.
int	getKeyIdType() Returns the key identifier type this class represents.
java.lang.String	getKeyIdTypeName() Returns the key (certificate) identifier type this class represents as string.
int	hashCode() Returns a hashcode for this SignerRecipientIdentifier.
boolean	identifiesCert(X509Certificate cert) Checks if the given certificate is identified by this CertificateIdentifier.
ASN1Object	toASN1Object() Returns this SignerRecipientIdentifier as ASN1Object.
java.lang.String	toString() Returns a String representation of this SignerRecipientKeyIdentifier.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SignerRecipientIdentifier

public SignerRecipientIdentifier(CertificateIdentifier certificateIdentifier)

Creates a SignerRecipientIdentifier from the given IssuerAndSerialNumber or SubjectKeyID.

Parameters:

certificateIdentifier - the IssuerAndSerialNumber or SubjectKeyID to be used for identifying the certificate

Throws:

if - the supplied certificateIdentifier is not an IssuerAndSerialNumber or SubjecKeyIdentifier

SignerRecipientIdentifier

public SignerRecipientIdentifier(ASN1Object obj)
                          throws CodingException

Creates a SignerRecipientIdentifier from an ASN1Object.

Parameters:

obj - the SignerRecipientIdentifier as ASN1Object

Throws:

CodingException - if the ASN1Object cannot be decoded or is invalid structured

Method Detail

getCertificateIdentifier

public CertificateIdentifier getCertificateIdentifier()

Gets the CertificateIdentifier this SignerRecipientIdentifier represents.

Returns:

an IssuerAndSerialNumber or SubjectKeyIdentifier object, depending on the certificate identifier type this SignerRecipientIdentifier represents

identifiesCert

public boolean identifiesCert(X509Certificate cert)

Checks if the given certificate is identified by this CertificateIdentifier.

Specified by:

identifiesCert in interface CertificateIdentifier

Parameters:

cert - the certificate to be checked of being identified by this CertificateIdentifier

Returns:

true if the given certificate is identified by this CertificateIdentifier, false otherwise

decode

public void decode(ASN1Object obj)
            throws CodingException

Decodes the SignerRecipientIdentifier from the given ASN1Object.

Specified by:

decode in interface ASN1Type

Parameters:

obj - the SignerRecipientIdentifier as ASN1Object

Throws:

CodingException - if the ASN1Object cannot be decoded or is invalid structured

toASN1Object

public ASN1Object toASN1Object()

Returns this SignerRecipientIdentifier as ASN1Object.

Specified by:

toASN1Object in interface ASN1Type

Returns:

this SignerRecipientIdentifier as ASN1Object

Throws:

CodingException - if an Encoding error occurs

equals

public boolean equals(java.lang.Object obj)

Compares this SignerRecipientIdentifier to the specified object.

Specified by:

equals in interface KeyIdentifier

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object to compare this SignerRecipientIdentifier against.

Returns:

true, if the given object is equal to this SignerRecipientIdentifier, false otherwise

hashCode

public int hashCode()

Returns a hashcode for this SignerRecipientIdentifier.

Specified by:

hashCode in interface KeyIdentifier

Overrides:

hashCode in class java.lang.Object

Returns:

a hashcode for this SignerRecipientIdentifier

getKeyIdType

public int getKeyIdType()

Returns the key identifier type this class represents.

Specified by:

getKeyIdType in interface KeyIdentifier

Returns:

ISSUER_AND_SERIALNUMBER (0) or SUBJECT_KEY_IDENTIFIER (1)

getKeyIdTypeName

public java.lang.String getKeyIdTypeName()

Returns the key (certificate) identifier type this class represents as string.

Specified by:

getKeyIdTypeName in interface KeyIdentifier

Returns:

"IssuerAndSerialNumber" or "SubjectKeyIdentifier"

toString

public java.lang.String toString()

Returns a String representation of this SignerRecipientKeyIdentifier.

Specified by:

toString in interface KeyIdentifier

Overrides:

toString in class java.lang.Object

Returns:

a String representation of this SignerRecipientKeyIdentifier