Package gnu.java.zrtp.zidfile

Class ZidRecord

  • public class ZidRecord
extends Object
    This class implements the ZID record. The ZID record holds data about a peer. According to ZRTP specification we use a ZID to identify a peer. ZRTP uses the RS (Retained Secret) data to construct shared secrets.

    NOTE: ZIDRecord has ZIDFile as friend. ZIDFile knows about the private data of ZIDRecord - please keep both classes synchronized.

    Author:
    Werner Dittmann <Werner.Dittmann@t-online.de>

    • Constructor Detail

      • ZidRecord

        public ZidRecord()

    • Method Detail

      • isValid

        protected boolean isValid()

      • setValid

        protected void setValid()

      • getBuffer

        protected byte[] getBuffer()

      • setRs1Valid

        public void setRs1Valid()

      • resetRs1Valid

        public void resetRs1Valid()

      • isRs1Valid

        public boolean isRs1Valid()

      • setRs2Valid

        public void setRs2Valid()

      • resetRs2Valid

        public void resetRs2Valid()

      • isRs2Valid

        public boolean isRs2Valid()

      • setMITMKeyAvailable

        public void setMITMKeyAvailable()

      • resetMITMKeyAvailable

        public void resetMITMKeyAvailable()

      • isMITMKeyAvailable

        public boolean isMITMKeyAvailable()

      • setOwnZIDRecord

        public void setOwnZIDRecord()

      • resetOwnZIDRecord

        public void resetOwnZIDRecord()

      • isOwnZIDRecord

        public boolean isOwnZIDRecord()

      • setSasVerified

        public void setSasVerified()

      • resetSasVerified

        public void resetSasVerified()

      • isSasVerified

        public boolean isSasVerified()

      • getIdentifierInto

        public void getIdentifierInto​(byte[] data)
        Retrieve identifier from buffer into a byte array.
        Parameters:
        data - byte array that receives the identifier.

      • getIdentifier

        public byte[] getIdentifier()
        Get identifier.

      • setIdentifier

        public void setIdentifier​(byte[] id)
        Set identifier.

      • getRs1

        public byte[] getRs1()
        Get RS1.

      • getRs2

        public byte[] getRs2()
        Get RS2.

      • isSameIdentifier

        public boolean isSameIdentifier​(byte[] data)
        Compare an identifier with identifier in this record.
        Parameters:
        data - byte array that containing the identifier to compare with

      • isSameRs1

        public boolean isSameRs1​(byte[] data)
        Compare RS1 with RS1 in this record.
        Parameters:
        data - byte array that containing the identifier to compare with

      • isSameRs2

        public boolean isSameRs2​(byte[] data)
        Compare RS2 with RS2 in this record.
        Parameters:
        data - byte array that containing the identifier to compare with

      • setNewRs1

        public void setNewRs1​(byte[] data,
                      int expire)
        Sets new RS1 data and associated expiration value. If the expiration value is >0 or -1 the method stores the new RS1. Before it stores the new RS1 it shifts the exiting RS1 into RS2 (together with its expiration time). Then it computes the expiration time of the and stores the result together with the new RS1. If the expiration value is -1 then this RS will never expire. If the expiration value is 0 then the expiration value of a stored RS1 is cleared and no new RS1 value is stored. Also RS2 is left unchanged.
        Parameters:
        data - Points to the new RS1 data.
        expire - The expiration interval in seconds. Default is -1.

      • isRs1NotExpired

        public boolean isRs1NotExpired()
        Check if RS1 is still valid Returns true if RS1 is still valid, false otherwise.
        Returns:
        Returns true is RS1 is not expired (valid), false otherwise.

      • isRs2NotExpired

        public boolean isRs2NotExpired()
        Check if RS2 is still valid Returns true if RS2 is still valid, false otherwise.
        Returns:
        Returns true is RS2 is not expired (valid), false otherwise.

      • getPosition

        public long getPosition()
        Returns:
        the position

      • setPosition

        public void setPosition​(long position)
        Parameters:
        position - the position to set

      • setMiTMData

        public void setMiTMData​(byte[] data)

      • getMiTMData

        public byte[] getMiTMData()

      • main

        public static void main​(String[] argv)