org.apache.directory.shared.kerberos.components

Class ETypeInfo2Entry

java.lang.Object

org.apache.directory.shared.kerberos.components.ETypeInfo2Entry

All Implemented Interfaces:

org.apache.directory.api.asn1.Asn1Object

public class ETypeInfo2Entry
extends java.lang.Object
implements org.apache.directory.api.asn1.Asn1Object

Provides encryption info information sent to the client. The ASN.1 grammar for this structure is :

 ETYPE-INFO2-ENTRY        ::= SEQUENCE {
            etype           [0] Int32,
            salt            [1] KerberosString OPTIONAL,
            s2kparams       [2] OCTET STRING OPTIONAL
    }
 

Field Summary

Fields

Modifier and Type	Field and Description
private EncryptionType	etype The encryption type
private int	etypeInfo2EntrySeqLength
private int	etypeTagLength
private static boolean	IS_DEBUG Speedup for logs
private static org.slf4j.Logger	LOG The logger
private byte[]	s2kparams The s2k params
private int	s2kparamsTagLength
private java.lang.String	salt The salt
private byte[]	saltBytes
private int	saltTagLength

Constructor Summary

Constructors

Constructor and Description
ETypeInfo2Entry() Creates a new instance of ETypeInfo2Entry.
ETypeInfo2Entry(EncryptionType etype)

Method Summary

Modifier and Type	Method and Description
int	computeLength() Compute the ETYPE-INFO2-ENTRY length
java.nio.ByteBuffer	encode(java.nio.ByteBuffer buffer) Encode the ETYPE-INFO2-ENTRY message to a PDU.
EncryptionType	getEType() Returns the EncryptionType.
byte[]	getS2kparams() Returns the s2kparams.
java.lang.String	getSalt() Returns the salt.
void	setEType(EncryptionType etype)
void	setS2kparams(byte[] s2kparams)
void	setSalt(java.lang.String salt)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

The logger

IS_DEBUG

private static final boolean IS_DEBUG

Speedup for logs

etype

private EncryptionType etype

The encryption type

salt

private java.lang.String salt

The salt

saltBytes

private byte[] saltBytes

s2kparams

private byte[] s2kparams

The s2k params

etypeTagLength

private int etypeTagLength

saltTagLength

private int saltTagLength

s2kparamsTagLength

private int s2kparamsTagLength

etypeInfo2EntrySeqLength

private int etypeInfo2EntrySeqLength

Constructor Detail

ETypeInfo2Entry

public ETypeInfo2Entry()

Creates a new instance of ETypeInfo2Entry.

ETypeInfo2Entry

public ETypeInfo2Entry(EncryptionType etype)

Method Detail

getSalt

public java.lang.String getSalt()

Returns the salt.

Returns:

The salt.

setSalt

public void setSalt(java.lang.String salt)

Parameters:

salt - the salt to set

getS2kparams

public byte[] getS2kparams()

Returns the s2kparams.

Returns:

The s2kparams.

setS2kparams

public void setS2kparams(byte[] s2kparams)

Parameters:

s2kparams - the s2kparams to set

getEType

public EncryptionType getEType()

Returns the EncryptionType.

Returns:

The EncryptionType.

setEType

public void setEType(EncryptionType etype)

Parameters:

encryptionType - the encryptionType to set

computeLength

public int computeLength()

Compute the ETYPE-INFO2-ENTRY length

 ETYPE-INFO-ENTRY :
 
 0x30 L1 ETYPE-INFO2-ENTRY sequence
  |
  +--> 0xA0 L2 etype tag
  |     |
  |     +--> 0x02 L2-1etype (int)
  |
  +--> 0xA1 L3 salt tag
  |     |
  |     +--> 0x1B L3-1 salt (KerberosString)
  |
  +--> 0xA2 L4 s2kparams tag
        |
        +--> 0x04 L4-1 salt (OCTET STRING)
        
  where L1 = L2 + length(0xA0) + length(L2) +
             L3 + length(0xA1) + length(L3) +
             L4 + length(0xA2) + length( L4)
  and
  L2 = L2-1 + length(0x02) + length( L2-1) 
  L3 = L3-1 + length(0x1B) + length( L3-1) 
  L4 = L4-1 + length(0x04) + length( L4-1) 
  

Specified by:

computeLength in interface org.apache.directory.api.asn1.Asn1Object

encode

public java.nio.ByteBuffer encode(java.nio.ByteBuffer buffer)
                           throws org.apache.directory.api.asn1.EncoderException

Encode the ETYPE-INFO2-ENTRY message to a PDU.

 ETYPE-INFO2-ENTRY :
 
 0x30 LL
   0xA0 LL 
     0x02 0x01 etype
   0xA1 LL 
     0x1B LL salt
   0xA2 LL 
     0x04 LL s2kparams
 

Specified by:

encode in interface org.apache.directory.api.asn1.Asn1Object

Parameters:

buffer - The buffer where to put the PDU. It should have been allocated before, with the right size.

Returns:

The constructed PDU.

Throws:

org.apache.directory.api.asn1.EncoderException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()