Kwiintsuku ezithile ezidlulileyo Sithetha apha kwibhlog malunga nesixhobo esigqwesileyo se-steganography ngubani igama layo I-Steghide eluncedo lomgca wokuyalela ekuvumela ukuba ufihle idatha eyimfihlo kwiindidi ezahlukeneyo zemifanekiso kunye neefayile ezimanyelwayo.
Namhlanje siza kuthetha ngesinye isixhobo se-steganography esebenza kwilayini yomyalelo kwaye iya kusinceda ukuba sibe nomfanekiso-ngqondweni wolwazi lwethu, isixhobo ekufuneka sithethe ngaso namhlanje Ibizwa ngokuba yi-Outguess.
Ukuphuma nako kunjalo umgca wokuyalela umsebenzisi we-steganography ovumela ulwazi olufihliweyo ukuba lufakwe kwimithombo engafunekiyo yemithombo yedatha.
Inkqubo ixhomekeke kubaphathi beedatha ezithile eziza kukhupha iibits ezingafunekiyo kwaye zibhale emva koguqulo.
Iifomathi zefayile ezithi Ukuxhamla okwangoku kuxhaswa kubandakanya i-JPEG, i-PPM kunye ne-PNM, nangona ungasebenzisa nayiphi na idatha yedatha, nje ukuba kunikezelwa umqhubi.
Ngethamsanqa ukuvela kungaphakathi koovimba bolwabiwo lweLinux, ke ukufakwa kwayo kulula.
Uyifaka njani i-Outguess kwi-Ubuntu nakwiziphumo?
Ukuba unomdla wokukwazi ukufaka esi sixhobo kwindlela yakho Kuya kufuneka uvule i-terminal kwaye kuyo uchwetheze lo myalelo ulandelayo:
sudo apt-get install outguess
Kwaye ugqibile ngayo, ungaqala ukusebenzisa esi sixhobo kwinkqubo yakho.
Ungazifihla njani iifayile ngoncedo lwePhume?
Ewe, nje ukuba ukufakwa kwesicelo kwenziwe, njengoko kuchaziwe ngasentla, esi sixhobo sisebenza kumgca womyalelo, ngoko kufuneka sivule i-terminal kwaye kuyo siya kwenza uvavanyo lwethu lwe-steganography.
Apha kule meko kufuneka sibe nefayile esifuna ukuyifihla kwaye sibe nefayile eya kusebenza njengesikhongozeli sefayile efihliweyo.
Kolu vavanyo lulula, Siza kwenza nayiphi na ifayile ye-txt kwaye kule nto baya kungenisa isicatshulwa abasifunayo.
Ngale nto siza kuchwetheza:
touch oculto.txt
Ngoku siza kongeza nasiphi na isicatshulwa kuyo:
nano oculto.txt
Sele ungenise isicatshulwa osifunayo, ungaqhubeka nokugcina ifayile ngeCtrl + O kwaye uphume nano ngeCtrl + X
Ngoku Umyalelo wokufihla ulwazi ngaphakathi kwefayile oyikhethileyo ubhalwe ngolu hlobo lulandelayo:
outguess -k "clave secreta" -d /ruta/de/archivo/a/ocultar/oculto.txt /ruta/de/imagen.jpg /ruta/del/archivo/de/salida.jpg
Apho "isitshixo semfihlo" siyakuba sisitshixo esiya kucelwa ukuba sikhuphe ulwazi olufihlayo kwaye ezinye ziindlela nje apho iifayile zakho zikhethe khona ekuqaleni.
Kuyacetyiswa ukuba ubenabo kwifolda efanayo ukuze umyalelo ube ngolu hlobo lulandelayo:
outguess -k "clave secreta" -d oculto.txt imagen.jpg image-salida.jpg
Njengoko ubona ukuba sicinga ukuba ifayile iya kubethelwa kwifolda yangoku kwifolda yangoku.
Kwimeko apho ifayile yokuqala eya kubethelwa ikwenye indawo kwinkqubo yakho, kuya kufuneka unikeze umendo wayo opheleleyo.
Ngokufanayo, ukuba ifayile yabo yemifanekiso ikwenye indawo, kufuneka bachaze umendo wabo opheleleyo.
Emva kokuba ukubethela kwenziwe, banokucima ifayile yakho ye-txt kwaye bagcine ifayile yemveliso eya kuthi kamva isetyenziselwe ukuguqulela.
Ungazikhupha njani iifayile ezifihliweyo ngaphandle?
Ngoku ukubona ukuba inkqubo yethu yangaphambili isebenze, siza kuqhubeka nokukhupha ifayile ebesiyifihle kumfanekiso abawukhethileyo.
Umyalelo wokukhupha owenziwe ngolu hlobo lulandelayo:
outguess -k "clave secreta" -r /ruta/de/imagen/imagen.jpg “nombre-de-archivo-que-se-oculto.txt”
Apho "isitshixo semfihlo" sisitshixo osabele ukukhusela ifayile. Oku kulandelayo kuyahambelana nendlela yomfanekiso onefayile efihliweyo kwaye oku kulandelayo ligama lefayile efihliweyo.
Kwimeko yomzekelo esiwenzileyo, sinokuchwetheza lo mthetho ulandelayo:
outguess -k "clave secreta" -r imagen-salida.jpg oculto.txt
Emva kokukhupha, isixhobo sokuPhuma sijonga kwakhona amanani ukuqinisekisa ukuba ifayile yoqobo injalo kanye nangaphambi kokubhala.