question: public byte [ ] asn1Encode ( ) throws Asn1Exception , IOException { Vector < DerValue > v = new Vector < > ( ) ; DerOutputStream temp = new DerOutputStream ( ) ; v . addElement ( new DerValue ( DerValue . createTag ( DerValue . TAG_CONTEXT , true , ( byte ) 0x00 ) , ctime . asn1Encode ( ) ) ) ; temp . putInteger ( BigInteger . valueOf ( cusec ) ) ; v . addElement ( new DerValue ( DerValue . createTag ( DerValue . TAG_CONTEXT , true , ( byte ) 0x01 ) , temp . toByteArray ( ) ) ) ; if ( subKey != null ) { v . addElement ( new DerValue ( DerValue . createTag ( DerValue . TAG_CONTEXT , true , ( byte ) 0x02 ) , subKey . asn1Encode ( ) ) ) ; } if ( seqNumber != null ) { temp = new DerOutputStream ( ) ; temp . putInteger ( BigInteger . valueOf ( seqNumber . longValue ( ) ) ) ; v . addElement ( new DerValue ( DerValue . createTag ( DerValue . TAG_CONTEXT , true , ( byte ) 0x03 ) , temp . toByteArray ( ) ) ) ; } DerValue der [ ] = new DerValue [ v . size ( ) ] ; v . copyInto ( der ) ; temp = new DerOutputStream ( ) ; temp . putSequence ( der ) ; DerOutputStream out = new DerOutputStream ( ) ; out . write ( DerValue . createTag ( DerValue . TAG_APPLICATION , true , ( byte ) 0x1B ) , temp ) ; return out . toByteArray ( ) ; }
target:  Encodes an EncAPRepPart object.