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20 package org.apache.directory.server.kerberos.shared.io.encoder;
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23 import java.io.ByteArrayOutputStream;
24 import java.io.IOException;
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26 import org.apache.directory.server.kerberos.shared.messages.value.EncryptionTypeInfo2Entry;
27 import org.apache.directory.shared.asn1.der.ASN1OutputStream;
28 import org.apache.directory.shared.asn1.der.DERGeneralString;
29 import org.apache.directory.shared.asn1.der.DERInteger;
30 import org.apache.directory.shared.asn1.der.DEROctetString;
31 import org.apache.directory.shared.asn1.der.DERSequence;
32 import org.apache.directory.shared.asn1.der.DERTaggedObject;
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39 public class EncryptionTypeInfo2Encoder
40 {
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48 public static byte[] encode( EncryptionTypeInfo2Entry[] entries ) throws IOException
49 {
50 ByteArrayOutputStream baos = new ByteArrayOutputStream();
51 ASN1OutputStream aos = new ASN1OutputStream( baos );
52 aos.writeObject( encodeSequence( entries ) );
53 aos.close();
54
55 return baos.toByteArray();
56 }
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62 protected static DERSequence encodeSequence( EncryptionTypeInfo2Entry[] entries )
63 {
64 DERSequence sequence = new DERSequence();
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66 for ( int ii = 0; ii < entries.length; ii++ )
67 {
68 sequence.add( encode( entries[ii] ) );
69 }
70
71 return sequence;
72 }
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82 protected static DERSequence encode( EncryptionTypeInfo2Entry entry )
83 {
84 DERSequence sequence = new DERSequence();
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86 sequence.add( new DERTaggedObject( 0, DERInteger.valueOf( entry.getEncryptionType().getOrdinal() ) ) );
87
88 if ( entry.getSalt() != null )
89 {
90 sequence.add( new DERTaggedObject( 1, DERGeneralString.valueOf( entry.getSalt() ) ) );
91 }
92
93 if ( entry.getS2kParams() != null )
94 {
95 sequence.add( new DERTaggedObject( 2, new DEROctetString( entry.getS2kParams() ) ) );
96 }
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98 return sequence;
99 }
100 }