Abstract²,QIRUPDWLRQ VHFXULW\ SOD\V D PDMRU UROH LQ XSOLIWLQJ WKH VWDQGDUG RI VHFXUHG FRPPXQLFDWLRQV YLD JOREDO PHGLD ,Q WKLV SDSHU ZH KDYH VXJJHVWHG D WHFKQLTXH RI HQFU\SWLRQ IROORZHG E\ LQVHUWLRQ EHIRUH WUDQVPLVVLRQ +HUH ZH KDYH LPSOHPHQWHG WZR GLIIHUHQW FRQFHSWV WR FDUU\ RXW WKH DERYHVSHFLILHG WDVNV :H KDYH XVHG D WZR SRLQW FURVVRYHU WHFKQLTXH RI WKH JHQHWLF DOJRULWKP WR IDFLOLWDWH WKH HQFU\SWLRQ SURFHVV )RU HDFK RI WKH XQLTXHO\ LGHQWLILHG URZV RI SL[HOV GLIIHUHQW PDWKHPDWLFDO PHWKRGRORJLHV DUH DSSOLHG IRU VHYHUDO FRQGLWLRQV FKHFNLQJ LQ RUGHU WR ILJXUH RXW DOO WKH SDUHQW SL[HOV RQ ZKLFK ZH SHUIRUP WKH FURVVRYHU RSHUDWLRQ 7KLV LV GRQH E\ VHOHFWLQJ WZR FURVVRYHU SRLQWV ZLWKLQ WKH SL[HOV WKHUHE\ SURGXFLQJ WKH QHZO\ HQFU\SWHG FKLOG SL[HOV DQG KHQFH WKH HQFU\SWHG FRYHU LPDJH ,Q WKH QH[W ODS WKH ILUVW DQG VHFRQG RUGHU GHULYDWLYH RSHUDWRUV DUH HYDOXDWHG WR LQFUHDVH WKH VHFXULW\ DQG UREXVWQHVV 7KH ODVW ODS IXUWKHU HQVXUHV UHDSSOLFDWLRQ RI WKH FURVVRYHU SURFHGXUH WR IRUP WKH ILQDO VWHJR LPDJH 7KH FRPSOH[LW\ RI WKLV V\VWHP DV D ZKROH LV KXJH WKHUHE\ GLVVXDGLQJ WKH WKLUG SDUW\ LQWHUIHUHQFHV $OVR WKH HPEHGGLQJ FDSDFLW\ LV YHU\ KLJK 7KHUHIRUH D ODUJHU DPRXQW RI VHFUHW LPDJH LQIRUPDWLRQ FDQ EH KLGGHQ 7KH LPSHUFHSWLEOH YLVLRQ RI WKH REWDLQHG VWHJRLPDJH FOHDUO\ SURYHV WKH SURILFLHQF\ RI WKLV DSSURDFK Keywords²6WHJDQRJUDSK\ &URVVRYHU 'LIIHUHQWLDO &DOFXOXV 3HDN 6LJQDO WR 1RLVH 5DWLR &URVVFRUUHODWLRQ &RHIILFLHQW , ,1752'8&7,21 7(*$12*5$3+< >@ SULPDULO\ SRLQWV WR WKH WHFKQRORJ\ RI LQYLVLEOH FRPPXQLFDWLRQ 7KLV PDLQO\ RYHUFRPHV WKH GUDZEDFN RI WKH WUHQG RI MXVW HQFU\SWHG FRPPXQLFDWLRQ LH FU\SWRJUDSK\ >@ 8QOLNH FU\SWRJUDSK\ VWHJDQRJUDSK\ EULQJV IRUWK YDULRXV WHFKQLTXHV ZKLFK VWULYH WR KLGH WKH H[LVWHQFH RI DQ\ KLGGHQ LQIRUPDWLRQ DORQJ ZLWK NHHSLQJ LW HQFU\SWHG ,PDJH VWHJDQRJUDSK\ LV D YLWDO ZLQJ RI WKLV KRUL]RQ WKDW H[SORLWV WKH SHUFHSWLELOLW\ RI KXPDQ YLVXDO V\VWHP LQ RUGHU WR IDFLOLWDWH VHFXUHG WUDQVPLVVLRQV 7KH FRYHU LPDJH LV WKH VHHPLQJO\ XQLPSRUWDQW LPDJH ZLWKLQ ZKLFK WKH DFWXDO FRQILGHQWLDO LPDJH LV WR EH HPEHGGHG 2Q WKH RWKHU VLGH WKH VWHJRLPDJH >@ VHUYHV WR EH D FDUULHU IRU FRPPXQLFDWLQJ WKH SULYDWH LPDJH DFURVV ,WV LGHQWLFDOQHVV ZLWK WKH FRYHU LPDJH PDNHV LW VHHPLQJO\ XQLPSRUWDQW IRU DQ\ RXWVLGHU WR JHW DWWUDFWHG ,Q WKLV SDSHU ZH KDYH DW ILUVW LPSOHPHQWHG WKH FRQFHSW RI FURVVRYHU >@ LQ RUGHU WR HQFU\SW WKH PDLQ FRYHU LPDJH 7KH WHUP ³&URVVRYHU´ SOD\V D YHU\ VLJQLILFDQW UROH LQ WKH ILHOG RI WKH JHQHWLF DOJRULWKP %DVLFDOO\ LW DSSHDUV WR EH D JHQHWLF RSHUDWRU WKDW FRPELQHV WZR FKURPRVRPHV WR SURGXFH D QHZ 6 0XNKHUMHH LV ZLWK WKH 1DWLRQDO ,QVWLWXWH RI 7HFKQRORJ\ 'XUJDSXU ,QGLD SKRQH   HPDLO VULOHNKDPXNKHUMHH#JPDLOFRP 6 $VK DQG * 6DQ\DO DUH ZLWK WKH 1DWLRQDO ,QVWLWXWH RI 7HFKQRORJ\ 'XUJDSXU ,QGLD HPDLO VXEKDDVKQLWGJS#JPDLOFRP QLWJVDQ\DO#JPDLOFRP FKURPRVRPH 7KH PDLQ LGHD EHKLQG WKLV LV WKDW WKH QHZO\ IRUPHG FKLOG FKURPRVRPH PD\ EH IDU EHWWHU WKDQ ERWK WKH SDUHQW FKURPRVRPHV VXFK WKDW LW WDNHV DOO WKH EHVW WUDLWV IURP HDFK RI LWV SDUHQWV :H KDYH DSSOLHG WKLV WHFKQLTXH WR WKH RULJLQDO SL[HO YDOXHV RI WKH FKRVHQ FRYHU LPDJH VR DV WR HQFU\SW LWVHOI 6HYHUDO W\SHV RI FURVVRYHU WHFKQLTXHV H[LVW LQ UHDOLW\ DPRQJVW ZKLFK ZH KDYH LPSOHPHQWHG WKH WZRSRLQW FURVVRYHU WHFKQLTXH SLFWRULDOO\ UHSUHVHQWHG LQ )LJ  1H[W FRPHV WKH SKDVH RI LQVHUWLRQ RI WKH VHFUHW LPDJH ELWV LQWR WKDW RI WKH HQFU\SWHG FRYHU LPDJH ,Q WKLV FRQWH[W ZH KDYH SXW LQWR HIIHFW WKH FRQFHSWV RI GLIIHUHQWLDO FDOFXOXV >@ 7KH IXQGDPHQWDO REMHFWLYH RI GLIIHUHQWLDO FDOFXOXV PD\ EH SRLQWHG RXW WR EH WKH GHULYDWLYHV RI D IXQFWLRQ +HUH ERWK WKH ILUVW DQG VHFRQG RUGHU GHULYDWLYHV DUH HYDOXDWHG DQG WKHVH YDOXHV FRQWULEXWH WKHLU VLJQLILFDQW DPRXQW RI VKDUH LQ ILJXULQJ RXW WKH IDVKLRQ RI LQVHUWLRQ 5HDSSOLFDWLRQ RI WKH FURVVRYHU WHFKQLTXH UHVXOWV LQ WKH IRUPDWLRQ RI WKH VWHJRLPDJH )LJ  7ZR 3RLQW &URVVRYHU 7HFKQLTXH 7KLV SDSHU LV FDWDORJXHG LQWR GLIIHUHQW VHFWLRQV 6HFWLRQ ,, KLJKOLJKWV VRPH RI WKH SUHYLRXV ZRUNV GRQH LQ WKH ILHOG RI LPDJH VWHJDQRJUDSK\ 6HFWLRQ ,,, HQFORVHV RXU SURSRVHG DSSURDFK 6HFWLRQ ,9 GLVFXVVHV WKH GLIIHUHQW DOJRULWKPV WKDW KDYH EHHQ XVHG IRU HQFU\SWLQJ DQG HPEHGGLQJ 6HFWLRQ 9 FRQVWLWXWHV WKH H[SHULPHQWDO UHVXOWV RI WKH SURSRVHG DSSURDFK 6HFWLRQ 9, GUDZV WKH FRQFOXVLRQ ,,35(9,286 :25.6 21 ,0$*( 67(*$12*5$3+< A. Data Hiding by LSB 2QH RI WKH PRVW FRPPRQ VWHJDQRJUDSKLF PHWKRGV LV GDWD KLGLQJ E\ /6% >@ +HUH WKH OHDVW VLJQLILFDQW ELW LH WKH /6%¶V RI WKH SL[HO YDOXHV UHVLGLQJ LQ WKH FRYHU LPDJH LV GLUHFWO\ UHSODFHG ZLWK WKDW RI WKH ELW YDOXHV RI WKH VHFUHW PHVVDJH $OWKRXJK WKLV PHWKRG LV DGYDQWDJHRXV LW LV VWLOO YXOQHUDEOH WR PLQXWH FKDQJHV OLNH FURSSLQJ DQG FRPSUHVVLRQ RI VHYHUDO LPDJHV 6ULOHNKD 0XNKHUMHH 6XEKD $VK *RXWDP 6DQ\DO $ 'LIIHUHQWLDO &DOFXOXV %DVHG ,PDJH 6WHJDQRJUDSK\ ZLWK &URVVRYHU 6 World Academy of Science, Engineering and Technology International Journal of Information and Communication Engineering Vol:9, No:4, 2015 1056 International Scholarly and Scientific Research & Innovation 9(4) 2015 scholar.waset.org/1307-6892/10003694 International Science Index, Information and Communication Engineering Vol:9, No:4, 2015 waset.org/Publication/10003694