Cov ntaub ntawv cia Encryption Txhais
Dab Tseg Yog Cov Ntawv Thov Encryption?
Cov ntaub ntawv cia encryption tsuas yog qhov encryption ntawm cov ntaub ntawv khaws cia, feem ntau yog rau lub hom phiaj ntawm kev tiv thaiv cov ntaub ntawv tsis zoo los ntawm kev saib xyuas los ntawm cov neeg uas yuav tsum tsis txhob nkag mus rau nws.
Encryption muab cov ntaub ntawv tso rau hauv ib lo lus zais uas tiv thaiv thiab sib pauv hu ua ciphertext uas tsis yog tib neeg-tshwmsim, thiab yog li ntawd tsis muaj peev xwm yuav to taub yam tsis tau txiav txim siab thawj lawv rov qab mus rau hauv lub xeev nyeem tau plaintext , los yog cleartext .
Cov ntaub ntawv cia encryption yog txawv dua cov ntaub ntawv hloov encryption , uas yog encryption siv ib hom thaum hloov cov ntaub ntawv los ntawm ib qhov chaw mus rau lwm.
Thaum twg yog siv cov ntaub Encryption?
Cov ntaub ntawv cia encryption ntau dua yuav raug siv yog cov ntaub ntawv khaws tseg hauv online los yog hauv qhov chaw yooj yim, xws li nyob rau sab nraud tsav lossis flash tsav .
Ib feem ntawm software siv tau cov ntaub ntawv cia encryption, tiam sis nws yog feem ntau yog ib qho kev pab cuam tshwj xeeb yog tias yog tus kheej cov ntaub ntawv raug khaws tseg.
Rau cov kev pab cuam uas tsis muaj ntaub ntawv cia encryption built-in, 3rd party cuab yeej ua haujlwm. Piv txwv, muaj ntau cov dawb, qhov kev pab cuam disk encryption muaj sia tawm uas yuav siv tau los encrypt tus tag nrho tsav.
Nws yog ib qho rau kev muab encryption siv los ntawm cov tuam txhab rau lawv tus kheej cov servers thaum koj tus kheej cov lus qhia xws li cov ntaub ntawv them nqi, duab, email, lossis qhov chaw nyob khaws tseg.
Cov ntaub ntawv cia Encryption Bit-Rates
AES encryption algorithm yog muaj nyob rau hauv txawv variants: 128-bit, 192-bit, thiab 256-bit. Ib ntsis dua tus nqi yuav muab kev ruaj ntseg ntau tshaj ib tus me dua, tab sis siv rau cov tswv yim, txawm tias 128-ntsis kev xaiv kev xaiv yog qhov tseem ceeb txaus rau kev ceev cov ntaub ntawv.
Blowfish yog ib qho tseem ceeb heev uas siv tau cov ntaub ntawv uas siv tau los khaws cia cov ntaub ntawv khaws cia. Blowfish siv ib qhov tseem ceeb ntev qhov twg los ntawm 32 khoom tuaj txog 448 khoom.
Qhov loj sib txawv ntawm cov nqi me ntsis no yog qhov ntev qhov tseem ceeb siv ntau dua li cov me me. Piv txwv, 128-ntsis encryption siv 10 rounds thaum 256-ntsis encryption siv 14 rounds, thiab tshuab Blowfish 16. Yog li 4 los 6 ntxiv rounds siv nyob rau hauv qhov ntev qhov tseem ceeb, uas translates ntxiv repetitions hauv converting plaintext rau cliphertext. Cov ntau dua uas tshwm sim, qhov ntau dua cov jumbled cov ntaub ntawv tiav, ua rau nws nyuab dua ua txhaum.
Txawm li cas los xij, txawm tias 128-ntsis encryption tsis rov ua lub voj voog ntau zaus li lwm cov me ntsis, nws tseem tsis tshua muaj kev ruaj ntseg, thiab yuav siv sij hawm ntau zog ntawm kev ua hluav taws xob thiab ntau dhau sijhawm kom tawg hnub siv tshuab.
Cov ntaub ntawv cia Encryption nrog thaub qab Software
Ze li txhua qhov chaw thev naus laus zauv hauv internet uas siv cov ntaub ntawv cia zauv. Qhov no yog qhov yuav tsum tau xav tias cov ntaub ntawv ntiag tug xws li cov yeeb yaj duab, cov duab, thiab cov ntaub ntawv raug muab khaws cia rau hauv cov chaw uas siv tau hauv Internet.
Ib zaug encrypted, cov ntaub ntawv tsis tau nyeem los ntawm leej twg tshwj tsis yog tias tus password siv encrypt nws yog siv rov qab encryption, los yog decrypt nws, granting koj cov ntaub ntawv.
Qee cov tsoos, cov chaw thau khoom offline tseem siv cov ntaub ntawv cia encryption kom cov ntaub ntawv koj rov qab mus rau lub tsav tsheb, xws li sab nrauv tsav , disc, lossis flash drive, tsis nyob rau hauv ib daim ntawv uas tus neeg muaj lub peev xwm saib ntawm.
Nyob rau hauv cov ntaub ntawv no, zoo li cov thaub qab online, cov ntaub ntawv yog unreadable tshwj tsis yog tias tib software, nrog lub password uas siv password, siv rov qab xa cov ntaub ntawv rov qab mus rau plaintext.