1 package net.java.otr4j.session;

     2 

     3 import java.math.BigInteger;

     4 import java.security.KeyPair;

     5 

     6 import javax.crypto.interfaces.DHPublicKey;

     7 

     8 import net.java.otr4j.OtrException;

     9 

    10 interface SessionKeys {

    11 

    12 	public static final int Previous = 0;

    13 	public static final int Current = 1;

    14 	public static final byte HIGH_SEND_BYTE = (byte) 0x01;

    15 	public static final byte HIGH_RECEIVE_BYTE = (byte) 0x02;

    16 	public static final byte LOW_SEND_BYTE = (byte) 0x02;

    17 	public static final byte LOW_RECEIVE_BYTE = (byte) 0x01;

    18 

    19 	public abstract void setLocalPair(KeyPair keyPair, int localPairKeyID);

    20 

    21 	public abstract void setRemoteDHPublicKey(DHPublicKey pubKey,

    22 			int remoteKeyID);

    23 

    24 	public abstract void incrementSendingCtr();

    25 

    26 	public abstract byte[] getSendingCtr();

    27 

    28 	public abstract byte[] getReceivingCtr();

    29 

    30 	public abstract void setReceivingCtr(byte[] ctr);

    31 

    32 	public abstract byte[] getSendingAESKey() throws OtrException;

    33 

    34 	public abstract byte[] getReceivingAESKey() throws OtrException;

    35 

    36 	public abstract byte[] getSendingMACKey() throws OtrException;

    37 

    38 	public abstract byte[] getReceivingMACKey() throws OtrException;

    39 

    40 	public abstract void setS(BigInteger s);

    41 

    42 	public abstract void setIsUsedReceivingMACKey(Boolean isUsedReceivingMACKey);

    43 

    44 	public abstract Boolean getIsUsedReceivingMACKey();

    45 

    46 	public abstract int getLocalKeyID();

    47 

    48 	public abstract int getRemoteKeyID();

    49 

    50 	public abstract DHPublicKey getRemoteKey();

    51 

    52 	public abstract KeyPair getLocalPair();

    53 

    54 }