schemajic.decoder
Class DERDecoder

java.lang.Object
  schemajic.codec.Decoder
      schemajic.codec.ASN1Decoder
          schemajic.decoder.DERDecoder

All Implemented Interfaces:

ValueVisitor

public class DERDecoder
extends ASN1Decoder
implements ValueVisitor

Decoder for Distinguished Encoding Rules (DER) of ASN.1.

Version:

1.00 - 2006/02/10

Author:

support@phillipgriffin.com

Constructor Summary

DERDecoder()
Constructor for DERDecoder.

Method Summary

void	decode(java.io.InputStream in, ASN1Value value) An instance of the correct subclass of ASN1Value must be provided to the schemajic.decoder.der.
int[]	decodeObjectIdentifier(byte[] data)
int[]	decodeObjectIdentifier(int length, ByteCountingInputStream in)
int[]	decodeRelativeObjectIdentifier(byte[] data)
int[]	decodeRelativeObjectIdentifier(int length, ByteCountingInputStream in)
java.lang.Object	visit(ASN1BitString value, java.lang.Object object) An ASN.1 type BIT STRING visit method with value and object parameters.
java.lang.Object	visit(ASN1BMPString value, java.lang.Object object) An ASN.1 type BMPString visit method with value and object parameters.
java.lang.Object	visit(ASN1Boolean value, java.lang.Object object) Under DER, a boolean value
java.lang.Object	visit(ASN1Choice value, java.lang.Object object) An ASN.1 CHOICE type visit method with value and object parameters.
java.lang.Object	visit(ASN1Enumerated value, java.lang.Object object) An ASN.1 type ENUMERATED visit method with value and object parameters.
java.lang.Object	visit(ASN1GeneralizedTime value, java.lang.Object object) An ASN.1 type GeneralizedTime visit method with value and object parameters.
java.lang.Object	visit(ASN1GeneralString value, java.lang.Object object) An ASN.1 type GeneralString visit method with value and object parameters.
java.lang.Object	visit(ASN1IA5String value, java.lang.Object object) An ASN.1 type IA5String visit method with value and object parameters.
java.lang.Object	visit(ASN1Integer value, java.lang.Object object) The integer value is encoded in one or more octets where the most significant bit is 8.
java.lang.Object	visit(ASN1ISO646String value, java.lang.Object object) An ASN.1 type ISO646String visit method with value and object parameters.
java.lang.Object	visit(ASN1Null value, java.lang.Object object) An ASN.1 type NULL visit method with value and object parameters.
java.lang.Object	visit(ASN1NumericString value, java.lang.Object object) An ASN.1 type NumericString visit method with value and object parameters.
java.lang.Object	visit(ASN1ObjectIdentifier value, java.lang.Object object) An ASN.1 type OBJECT IDENTIFIER visit method with value and object parameters.
java.lang.Object	visit(ASN1OctetString value, java.lang.Object object) The ASN.1 type OCTET STRING visit method with value and object parameters.
java.lang.Object	visit(ASN1OpenType value, java.lang.Object object) ASN.1 open type visit method with value and object parameters.
java.lang.Object	visit(ASN1PrintableString value, java.lang.Object object) An ASN.1 type PrintableString visit method with value and object parameters.
java.lang.Object	visit(ASN1RelativeOID value, java.lang.Object object) An ASN.1 type RELATIVE_OID visit method with value and object parameters.
java.lang.Object	visit(ASN1Sequence sequence, java.lang.Object object) an ASN.1 SEQUENCE type visit method with value and object parameters.
java.lang.Object	visit(ASN1SequenceOf value, java.lang.Object object) An ASN.1 SEQUENCE OF type visit method with value and object parameters.
java.lang.Object	visit(ASN1SetOf value, java.lang.Object object) An ASN.1 SET OF type visit method with value and object parameters.
java.lang.Object	visit(ASN1T61String value, java.lang.Object object) An ASN.1 type T61String visit method with value and object parameters.
java.lang.Object	visit(ASN1TeletexString value, java.lang.Object object) An ASN.1 type TeletexString visit method with value and object parameters.
java.lang.Object	visit(ASN1UniversalString value, java.lang.Object object) An ASN.1 type UniversalString visit method with value and object parameters.
java.lang.Object	visit(ASN1UTF8String value, java.lang.Object object) An ASN.1 type UTF8String visit method with value and object parameters.
java.lang.Object	visit(ASN1VideotexString value, java.lang.Object object) An ASN.1 type VideotexString visit method with value and object parameters.
java.lang.Object	visit(ASN1VisibleString value, java.lang.Object object) An ASN.1 type VisibleString visit method with value and object parameters.
java.lang.Object	visit(XEROctetString value, java.lang.Object object) TODO: Ignored by DER

Methods inherited from class schemajic.codec.Decoder

getInputStream, setInputStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DERDecoder

public DERDecoder()

Constructor for DERDecoder.

Method Detail

decode

public void decode(java.io.InputStream in,
                   ASN1Value value)
            throws DecodingException

An instance of the correct subclass of ASN1Value must be provided to the schemajic.decoder.der.

Specified by:

decode in class Decoder

Parameters:

in - source of a decoding transform

value - the value of an ASN.1 type to be decoded

Throws:

DecodingException

visit

public java.lang.Object visit(ASN1Boolean value,
                              java.lang.Object object)
                       throws VisitorException

Under DER, a boolean value

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of an ASN.1 type BOOLEAN in its encoded form

object - visit an object of ASN.1 type BOOLEAN

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1BitString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type BIT STRING visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type BIT STRING in its encoded form

object - visit an object of ASN.1 type BIT STRING

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1Choice value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 CHOICE type visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of some ASN.1 CHOICE type in its encoded form

object - visit an object of the ASN.1 CHOICE type

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1Enumerated value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type ENUMERATED visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type ENUMERATED in its encoded form

object - visit an object of ASN.1 type ENUMERATED

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1GeneralizedTime value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type GeneralizedTime visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type GeneralizedTime in its encoded form

object - visit an object of ASN.1 type GeneralizedTime

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1Integer value,
                              java.lang.Object object)
                       throws VisitorException

The integer value is encoded in one or more octets where the most significant bit is 8.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type INTEGER in its encoded form

object - visit an object of ASN.1 type INTEGER

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1Null value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type NULL visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type NULL in its encoded form

object - visit an object of ASN.1 type NULL

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1ObjectIdentifier value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type OBJECT IDENTIFIER visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type OBJECT IDENTIFIER in its encoded form

object - visit an object of ASN.1 type OBJECT IDENTIFIER

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1OctetString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

The ASN.1 type OCTET STRING visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type OCTET STRING in its encoded form

object - visit an object of ASN.1 type OCTET STRING

Throws:

VisitorException

visit

public java.lang.Object visit(XEROctetString value,
                              java.lang.Object object)
                       throws VisitorException

TODO: Ignored by DER

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type OCTET STRING in its XER encoded form

object - visit an object of ASN.1 type OCTET STRING

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1RelativeOID value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type RELATIVE_OID visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type RELATIVE_OID in its encoded form

object - visit an object of ASN.1 type RELATIVE_OID

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1Sequence sequence,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

an ASN.1 SEQUENCE type visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

sequence - a value of ASN.1 type SEQUENCE in its encoded form

object - visit an object of ASN.1 type SEQUENCE

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1SequenceOf value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 SEQUENCE OF type visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type SEQUENCE OF in its encoded form

object - visit an object of ASN.1 type SEQUENCE OF

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1SetOf value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 SET OF type visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type SET OF in its encoded form

object - visit an object of ASN.1 type SET OF

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1OpenType value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

ASN.1 open type visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of an ASN.1 type in its encoded form (an open type)

object - visit an object of the ASN.1 open type

Throws:

VisitorException

decodeRelativeObjectIdentifier

public int[] decodeRelativeObjectIdentifier(byte[] data)
                                     throws DecodingException

Throws:

DecodingException

decodeRelativeObjectIdentifier

public int[] decodeRelativeObjectIdentifier(int length,
                                            ByteCountingInputStream in)
                                     throws DecodingException

Throws:

DecodingException

decodeObjectIdentifier

public int[] decodeObjectIdentifier(byte[] data)
                             throws DecodingException

Throws:

DecodingException

decodeObjectIdentifier

public int[] decodeObjectIdentifier(int length,
                                    ByteCountingInputStream in)
                             throws DecodingException

Throws:

DecodingException

visit

public java.lang.Object visit(ASN1VisibleString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type VisibleString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type VisibleString in its encoded form

object - visit an object of ASN.1 type VisibleString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1BMPString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type BMPString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type BMPString in its encoded form

object - visit an object of ASN.1 type BMPString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1GeneralString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type GeneralString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type GeneralString in its encoded form

object - visit an object of ASN.1 type GeneralString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1IA5String value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type IA5String visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type IA5String in its encoded form

object - visit an object of ASN.1 type IA5String

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1ISO646String value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type ISO646String visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type ISO646String in its encoded form

object - visit an object of ASN.1 type ISO646String

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1NumericString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type NumericString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type NumericString in its encoded form

object - visit an object of ASN.1 type NumericString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1PrintableString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type PrintableString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type PrintableString in its encoded form

object - visit an object of ASN.1 type PrintableString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1T61String value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type T61String visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type T61String in its encoded form

object - visit an object of ASN.1 type T61String

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1TeletexString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type TeletexString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type TeletexString in its encoded form

object - visit an object of ASN.1 type TeletexString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1UniversalString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type UniversalString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type UniversalString in its encoded form

object - visit an object of ASN.1 type UniversalString

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1UTF8String value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type UTF8String visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type UTF8String in its encoded form

object - visit an object of ASN.1 type UTF8String

Throws:

VisitorException

visit

public java.lang.Object visit(ASN1VideotexString value,
                              java.lang.Object object)
                       throws VisitorException

Description copied from interface: ValueVisitor

An ASN.1 type VideotexString visit method with value and object parameters.

Specified by:

visit in interface ValueVisitor

Parameters:

value - a value of ASN.1 type VideotexString in its encoded form

object - visit an object of ASN.1 type VideotexString

Throws:

VisitorException