Package org.jenkinsci.main.modules.instance_identity.pem

Class DerParser

java.lang.Object

org.jenkinsci.main.modules.instance_identity.pem.DerParser

@Restricted(org.kohsuke.accmod.restrictions.NoExternalUse.class)
public class DerParser
extends Object

A bare-minimum ASN.1 DER decoder, just having enough functions to decode PKCS#1 private keys. Especially, it doesn't handle explicitly tagged types with an outer tag.

This parser can only handle one layer. To parse nested constructs, get a new parser for each layer using Asn1Object.getParser().

There are many DER decoders in JRE but using them will tie this program to a specific JCE/JVM.

Author:

zhang

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ANY
static final int	APPLICATION
static final int	BIT_STRING
static final int	BMP_STRING
static final int	BOOLEAN
static final int	CONSTRUCTED
static final int	CONTEXT
static final int	ENUMERATED
static final int	GENERAL_STRING
static final int	GENERALIZED_TIME
static final int	GRAPHIC_STRING
static final int	IA5_STRING
protected final InputStream	in
static final int	INTEGER
static final int	ISO646_STRING
static final int	NULL
static final int	NUMERIC_STRING
static final int	OBJECT_IDENTIFIER
static final int	OCTET_STRING
static final int	PRINTABLE_STRING
static final int	PRIVATE
static final int	REAL
static final int	RELATIVE_OID
static final int	SEQUENCE
static final int	SET
static final int	T61_STRING
static final int	UNIVERSAL
static final int	UNIVERSAL_STRING
static final int	UTC_TIME
static final int	UTF8_STRING
static final int	VIDEOTEX_STRING

Constructor Summary

Constructors

Constructor	Description
DerParser(byte[] bytes)	Create a new DER decoder from a byte array.
DerParser(InputStream in)	Create a new DER decoder from an input stream.

Method Summary

Modifier and Type	Method	Description
Asn1Object	read()	Read next object.

Methods inherited from class java.lang.Object

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

Field Details

UNIVERSAL

public static final int UNIVERSAL

See Also:

• Constant Field Values

APPLICATION

public static final int APPLICATION

See Also:

• Constant Field Values

CONTEXT

public static final int CONTEXT

See Also:

• Constant Field Values

PRIVATE

public static final int PRIVATE

See Also:

• Constant Field Values

CONSTRUCTED

public static final int CONSTRUCTED

See Also:

• Constant Field Values

ANY

public static final int ANY

See Also:

• Constant Field Values

BOOLEAN

public static final int BOOLEAN

See Also:

• Constant Field Values

INTEGER

public static final int INTEGER

See Also:

• Constant Field Values

BIT_STRING

public static final int BIT_STRING

See Also:

• Constant Field Values

OCTET_STRING

public static final int OCTET_STRING

See Also:

• Constant Field Values

NULL

public static final int NULL

See Also:

• Constant Field Values

OBJECT_IDENTIFIER

public static final int OBJECT_IDENTIFIER

See Also:

• Constant Field Values

REAL

public static final int REAL

See Also:

• Constant Field Values

ENUMERATED

public static final int ENUMERATED

See Also:

• Constant Field Values

RELATIVE_OID

public static final int RELATIVE_OID

See Also:

• Constant Field Values

SEQUENCE

public static final int SEQUENCE

See Also:

• Constant Field Values

SET

public static final int SET

See Also:

• Constant Field Values

NUMERIC_STRING

public static final int NUMERIC_STRING

See Also:

• Constant Field Values

PRINTABLE_STRING

public static final int PRINTABLE_STRING

See Also:

• Constant Field Values

T61_STRING

public static final int T61_STRING

See Also:

• Constant Field Values

VIDEOTEX_STRING

public static final int VIDEOTEX_STRING

See Also:

• Constant Field Values

IA5_STRING

public static final int IA5_STRING

See Also:

• Constant Field Values

GRAPHIC_STRING

public static final int GRAPHIC_STRING

See Also:

• Constant Field Values

ISO646_STRING

public static final int ISO646_STRING

See Also:

• Constant Field Values

GENERAL_STRING

public static final int GENERAL_STRING

See Also:

• Constant Field Values

UTF8_STRING

public static final int UTF8_STRING

See Also:

• Constant Field Values

UNIVERSAL_STRING

public static final int UNIVERSAL_STRING

See Also:

• Constant Field Values

BMP_STRING

public static final int BMP_STRING

See Also:

• Constant Field Values

UTC_TIME

public static final int UTC_TIME

See Also:

• Constant Field Values

GENERALIZED_TIME

public static final int GENERALIZED_TIME

See Also:

• Constant Field Values

in

protected final InputStream in

Constructor Details

DerParser

public DerParser(InputStream in)
          throws IOException

Create a new DER decoder from an input stream.

Parameters:

in - The DER encoded stream

Throws:

IOException - if problems parsing

DerParser

public DerParser(byte[] bytes)
          throws IOException

Create a new DER decoder from a byte array.

Parameters:

bytes - the encoded bytes

Throws:

IOException - if problems parsing

Method Details

read

public Asn1Object read()
                throws IOException

Read next object. If it's constructed, the value holds encoded content and it should be parsed by a new parser from Asn1Object.getParser.

Returns:

parsed object

Throws:

IOException - if problems parsing