cryptix.asn1.encoding

Class DER

java.lang.Object

cryptix.asn1.encoding.BaseCoder

cryptix.asn1.encoding.DER

All Implemented Interfaces:

CoderOperations, ParserVisitor

public class DER
extends BaseCoder

A concrete factory class to handle ASN.1 DER encoding.

Portions of this class's code are ported from the "Unsupported Release of the Certificate Library" in C++ from Sun Microsystems' Internet Commerce Group (see copyright notice later). Copyright ©1997, 1998, 1999 Systemics Ltd on behalf of the Cryptix Development Team.
All rights reserved.

$Revision: 1.3 $

Author:

Raif S. Naffah, Eric Rescorla

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) class	DER.Component

Field Summary

Fields inherited from class cryptix.asn1.encoding.BaseCoder

in, out

Fields inherited from interface cryptix.asn1.encoding.CoderOperations

DECODING, ENCODING, UNINITIALIZED

Constructor Summary

Constructors

Constructor and Description
DER()

Method Summary

Methods

Modifier and Type	Method and Description
void	decode(ASNAny obj, java.io.InputStream in) Decodes an ANY, represented as byte[] -- EKR
void	decode(ASNBitString obj, java.io.InputStream in) Decodes a BIT STRING --internally represented as a byte[].
void	decode(ASNBoolean obj, java.io.InputStream in) Decodes a BOOLEAN --internally represented as a Boolean.
void	decode(ASNInteger obj, java.io.InputStream in) Decodes an INTEGER -- internally represented as a BigInteger.
void	decode(ASNNull obj, java.io.InputStream in) Decodes a NULL --internally represented as a null.
void	decode(ASNObjectIdentifier obj, java.io.InputStream in) Decodes an OID --internally represented as a dot-separated String.
void	decode(ASNOctetString obj, java.io.InputStream in) Decodes an OCTET STRING --internally represented as a byte[].
void	decode(ASNPrintableString obj, java.io.InputStream in) Decodes a PrintableString --internally represented as a String.
void	decode(ASNSequence obj, java.io.InputStream in) Decodes a SEQUENCE --internally represented as an array.
void	decode(ASNSequenceOf obj, java.io.InputStream in) Decodes a SEQUENCE OF --internally represented as an array.
void	decode(ASNSet obj, java.io.InputStream in) Decodes a SET --internally represented as an array.
void	decode(ASNSetOf obj, java.io.InputStream in) Decodes a SET OF --internally represented as an array.
void	decode(ASNTaggedType obj, java.io.InputStream in) Decodes a Tagged Type -- rewritten by EKR
void	decode(ASNTime obj, java.io.InputStream in) Decodes a UTCTime --internally represented as a Date.
void	decode(java.io.InputStream in, int level)
void	decodeExplicitTaggedType(ASNTaggedType obj, java.io.InputStream in) Decodes an EXPLICIT Tagged Type.
boolean	decodeImplicitTaggedType(ASNTaggedType obj, java.io.InputStream in) Decodes an IMPLICIT Tagged Type.
void	encode(ASNBoolean obj, java.io.OutputStream out) Encodes a BOOLEAN.
void	encode(ASNNull obj, java.io.OutputStream out) Encodes a NULL.
void	encode(ASNObjectIdentifier obj, java.io.OutputStream out) Encodes an OID.
void	encode(ASNOctetString obj, java.io.OutputStream out) Encodes an OCTET STRING.
void	encode(ASNSequence obj, java.io.OutputStream out) Encodes a SEQUENCE.
void	encode(ASNTaggedType obj, java.io.OutputStream out) Encodes an ASN.1 Tagged type.
void	encode(ASNTime obj, java.io.OutputStream out) Encodes a UTCTime.

Methods inherited from class cryptix.asn1.encoding.BaseCoder

decode, decode, encode, encode, encode, encode, encode, encode, encode, encode, encode, getInstance, getState, init, init, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitInternal

Methods inherited from class java.lang.Object

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

Constructor Detail

DER

public DER()

Method Detail

encode

public void encode(ASNBoolean obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes a BOOLEAN.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

encode

public void encode(ASNOctetString obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes an OCTET STRING.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

encode

public void encode(ASNNull obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes a NULL.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

encode

public void encode(ASNObjectIdentifier obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes an OID. OIDs are represented as dotted strings.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

encode

public void encode(ASNSequence obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes a SEQUENCE.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

encode

public void encode(ASNTaggedType obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes an ASN.1 Tagged type.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

encode

public void encode(ASNTime obj,
          java.io.OutputStream out)
            throws java.io.IOException

Encodes a UTCTime.

Specified by:

encode in interface CoderOperations

Overrides:

encode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNBoolean obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a BOOLEAN --internally represented as a Boolean.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNInteger obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes an INTEGER -- internally represented as a BigInteger.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNBitString obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a BIT STRING --internally represented as a byte[].

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNOctetString obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes an OCTET STRING --internally represented as a byte[].

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNNull obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a NULL --internally represented as a null.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNObjectIdentifier obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes an OID --internally represented as a dot-separated String.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNSequence obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a SEQUENCE --internally represented as an array.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNSequenceOf obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a SEQUENCE OF --internally represented as an array.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNSet obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a SET --internally represented as an array.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNSetOf obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a SET OF --internally represented as an array.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNTaggedType obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a Tagged Type -- rewritten by EKR

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNAny obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes an ANY, represented as byte[] -- EKR

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNPrintableString obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a PrintableString --internally represented as a String.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decode

public void decode(ASNTime obj,
          java.io.InputStream in)
            throws java.io.IOException

Decodes a UTCTime --internally represented as a Date.

Specified by:

decode in interface CoderOperations

Overrides:

decode in class BaseCoder

Throws:

java.io.IOException

decodeExplicitTaggedType

public void decodeExplicitTaggedType(ASNTaggedType obj,
                            java.io.InputStream in)
                              throws java.io.IOException

Decodes an EXPLICIT Tagged Type.

Throws:

java.io.IOException

decodeImplicitTaggedType

public boolean decodeImplicitTaggedType(ASNTaggedType obj,
                               java.io.InputStream in)
                                 throws java.io.IOException

Decodes an IMPLICIT Tagged Type.

Throws:

java.io.IOException

decode

public void decode(java.io.InputStream in,
          int level)
            throws java.io.IOException

Throws:

java.io.IOException