Txij li thaum lub Tsib Hlis 2020, kev muag khoom ntawm WD Kuv Phau Ntawv sab nraud hard drives uas txhawb AES kho vajtse encryption nrog 256-ntsis tus yuam sij tau pib hauv Russia. Vim muaj kev txwv kev cai lij choj, yav dhau los cov khoom siv no tsuas yog yuav hauv khw muag khoom hluav taws xob txawv teb chaws lossis hauv khw "grey", tab sis tam sim no leej twg tuaj yeem tau txais kev tiv thaiv tsav nrog tus tswv 3-xyoo lav los ntawm Western Digital. Nyob rau hauv kev hwm ntawm qhov kev tshwm sim tseem ceeb no, peb tau txiav txim siab ua ib qho kev mus ncig luv luv rau hauv keeb kwm thiab txheeb xyuas seb qhov Advanced Encryption Standard tshwm sim li cas thiab vim li cas nws thiaj li zoo piv rau kev sib tw daws teeb meem.
Tau ntev, tus qauv raug cai rau kev sib koom ua ke hauv Tebchaws Meskas yog DES (Data Encryption Standard), tsim los ntawm IBM thiab suav nrog hauv cov npe ntawm Tsoom Fwv Teb Chaws Cov Ntaub Ntawv Txheej Txheem hauv 1977 (FIPS 46-3). Lub algorithm yog ua raws li kev txhim kho tau txais thaum lub sijhawm tshawb fawb qhov project code-named Lucifer. Thaum lub Tsib Hlis 15, 1973, US National Bureau of Standards tshaj tawm kev sib tw los tsim cov txheej txheem encryption rau tsoomfwv cov koom haum, Asmeskas cov tuam txhab tau nkag mus rau kev sib tw cryptographic nrog peb version ntawm Lucifer, uas tau siv Feistel network tshiab. Thiab nrog rau lwm tus neeg sib tw, nws ua tsis tiav: tsis yog ib qho ntawm cov algorithms xa mus rau thawj qhov kev sib tw tau ntsib cov kev cai nruj tsim los ntawm NBS cov kws tshaj lij.
Tau kawg, IBM tsis tuaj yeem lees txais kev swb: thaum qhov kev sib tw tau rov pib dua thaum Lub Yim Hli 27, 1974, Asmeskas lub tuam txhab tau xa ib daim ntawv thov dua, nthuav tawm qhov kev txhim kho ntawm Lucifer. Lub sijhawm no pawg neeg txiav txim tsis muaj ib qho kev tsis txaus siab: tau ua haujlwm ua haujlwm ntawm qhov tsis raug, IBM tau ua tiav tag nrho cov kev tsis txaus siab, yog li tsis muaj dab tsi los yws txog. Tau txais yeej ib qho kev yeej, Lucifer hloov nws lub npe mus rau DES thiab tau luam tawm hauv Tsoom Fwv Teb Chaws Register thaum Lub Peb Hlis 17, 1975.
Txawm li cas los xij, thaum lub sij hawm pej xeem symposia tau teeb tsa hauv xyoo 1976 los tham txog tus qauv cryptographic tshiab, DES tau raug thuam hnyav los ntawm cov kws tshaj lij hauv zej zog. Yog vim li cas rau qhov no yog cov kev hloov pauv tau ua rau cov algorithm los ntawm NSA cov kws tshaj lij: tshwj xeeb, qhov ntev ntawm qhov tseem ceeb tau txo mus rau 56 cov khoom (thaum pib Lucifer txhawb kev ua haujlwm nrog 64- thiab 128-ntsis yuam sij), thiab cov logic ntawm permutation blocks tau hloov pauv. . Raws li cov kws tshaj lij cryptographers, "kev txhim kho" tsis muaj qab hau thiab tib yam uas Lub Chaw Haujlwm Saib Xyuas Kev Ruaj Ntseg Hauv Lub Tebchaws tau siv zog los ntawm kev siv cov kev hloov kho yog kom muaj peev xwm saib tau cov ntaub ntawv encrypted dawb.
Nyob rau hauv kev sib txuas nrog cov kev iab liam no, ib lub koom haum tshwj xeeb tau tsim nyob rau hauv US Senate, lub hom phiaj ntawm kev txheeb xyuas qhov tseeb ntawm NSA cov kev ua. Xyoo 1978, ib tsab ntawv tshaj tawm tau tshaj tawm tom qab kev tshawb nrhiav, uas tau hais hauv qab no:
- NSA cov neeg sawv cev tau koom rau hauv qhov kawg ntawm DES nkaus xwb, thiab lawv txoj kev koom tes cuam tshuam tsuas yog kev hloov pauv hauv kev ua haujlwm ntawm cov blocks permutation;
- Qhov kawg version ntawm DES tau muab tawm los tiv thaiv kev nyiag nkas thiab kev txheeb xyuas cryptographic dua li qhov qub, yog li cov kev hloov pauv tau raug cai;
- qhov tseem ceeb ntev ntawm 56 cov khoom yog ntau tshaj qhov txaus rau feem coob ntawm cov ntawv thov, vim tias kev rhuav tshem cov ntawv cipher yuav xav tau lub khoos phis tawj supercomputer uas raug nqi tsawg kawg kaum lab nyiaj daus las, thiab txij li cov neeg tawm tsam zoo tib yam thiab txawm tias cov kws tshaj lij hackers tsis muaj cov peev txheej zoo li no, tsis muaj dab tsi txhawj txog.
Cov thawj coj cov lus xaus tau lees paub ib feem hauv xyoo 1990, thaum Israeli cryptographers Eli Biham thiab Adi Shamir, ua haujlwm ntawm lub tswv yim ntawm kev sib txawv cryptanalysis, ua kev tshawb fawb loj ntawm block algorithms, suav nrog DES. Cov kws tshawb fawb xaus lus tias tus qauv permutation tshiab tau tiv thaiv ntau dua rau kev tawm tsam ntau dua li qhov qub, uas txhais tau hais tias NSA tau pab ntsaws ntau qhov hauv lub algorithm.
Adi Shamir
Nyob rau tib lub sijhawm, qhov kev txwv ntawm qhov ntev ntawm qhov tseem ceeb tau dhau los ua qhov teeb meem, thiab qhov hnyav heev ntawm qhov ntawd, uas tau lees paub tseeb hauv xyoo 1998 los ntawm pej xeem lub koom haum Electronic Frontier Foundation (EFF) ua ib feem ntawm DES Challenge II kev sim, ua raws li kev txhawb nqa ntawm RSA Laboratory. Lub supercomputer tau tsim tshwj xeeb rau kev tawg DES, codenamed EFF DES Cracker, uas yog tsim los ntawm John Gilmore, co-founder ntawm EFF thiab tus thawj coj ntawm DES Challenge project, thiab Paul Kocher, tus tsim ntawm Cryptography Research.
Processor EFF DES Cracker
Lub kaw lus lawv tau tsim muaj peev xwm nrhiav tau tus yuam sij rau tus qauv encrypted siv brute quab yuam hauv tsuas yog 56 teev, uas yog, tsawg dua peb hnub. Txhawm rau ua qhov no, DES Cracker yuav tsum tau kuaj xyuas txog ib feem peb ntawm txhua qhov kev sib txuas ua ke, uas txhais tau hais tias txawm tias nyob rau hauv qhov xwm txheej tsis zoo tshaj plaws, hacking yuav siv sijhawm li 224 teev, uas yog, tsis pub dhau 10 hnub. Nyob rau tib lub sij hawm, tus nqi ntawm lub supercomputer, coj mus rau hauv tus account cov nyiaj siv rau nws tsim, tsuas yog 250 txhiab las. Nws tsis yog nyuaj rau kwv yees tias niaj hnub no nws yog qhov yooj yim dua thiab pheej yig dua rau kev tawg xws li cov cai: tsis yog tsuas yog kho vajtse ua kom muaj zog dua, tab sis kuj ua tsaug rau kev tsim cov thev naus laus zis hauv Is Taws Nem, hacker tsis tas yuav yuav lossis xauj lub cov cuab yeej tsim nyog - nws yog qhov txaus los tsim botnet ntawm PCs kis tus kab mob.
Qhov kev sim no qhia meej meej tias DES tsis siv lawm li cas. Thiab txij li thaum lub sij hawm lub algorithm tau siv nyob rau hauv yuav luag 50% ntawm cov kev daws teeb meem nyob rau hauv lub teb ntawm cov ntaub ntawv encryption (raws li tib EFF kwv yees), lo lus nug ntawm kev nrhiav lwm txoj kev los ua ntau nias dua puas tau.
Kev sib tw tshiab - kev sib tw tshiab
Yuav kom ncaj ncees, nws yuav tsum tau hais tias kev tshawb nrhiav rau kev hloov pauv rau Cov Ntaub Ntawv Encryption Standard pib yuav luag ib txhij nrog kev npaj ntawm EFF DES Cracker: US National Institute of Standards and Technology (NIST) rov qab rau xyoo 1997 tau tshaj tawm qhov kev tshaj tawm. encryption algorithm kev sib tw tsim los txheeb xyuas "tus qauv kub" tshiab rau cryptosecurity. Thiab yog hais tias nyob rau hauv ancient sij hawm muaj ib qho kev tshwm sim zoo ib yam nkaus xwb "rau peb cov neeg," ces, nyob rau hauv lub siab lub ntsiab ntawm kev ua tsis tiav ntawm 30 xyoo dhau los, NIST txiav txim siab los ua kom cov kev sib tw qhib kiag li: txhua lub tuam txhab thiab ib tug neeg tuaj yeem koom nrog. nws, tsis hais nyob qhov twg los yog pej xeem.
Txoj hauv kev no tau ua tiav nws tus kheej txawm tias nyob rau theem ntawm kev xaiv cov neeg thov: ntawm cov kws sau ntawv uas tau thov kev koom tes hauv Advanced Encryption Standard kev sib tw yog cov kws tshawb fawb thoob ntiaj teb nto moo (Ross Anderson, Eli Biham, Lars Knudsen) thiab cov tuam txhab IT me tshwj xeeb hauv cybersecurity (Counterpane ) , thiab cov tuam txhab loj (German Deutsche Telekom), thiab cov tsev kawm ntawv (KU Leuven, Belgium), nrog rau cov pib thiab cov tuam txhab me me uas ob peb tau hnov ββββtxog sab nraud lawv lub tebchaws (piv txwv li, Tecnologia Apropriada Internacional los ntawm Costa Rica).
Interestingly, lub sij hawm no NIST pom zoo tsuas yog ob qho kev cai rau kev koom nrog algorithms:
- cov ntaub ntawv thaiv yuav tsum muaj qhov loj me ntawm 128 khoom;
- lub algorithm yuav tsum txhawb tsawg kawg yog peb qhov loj me: 128, 192 thiab 256 khoom.
Kev ua tiav cov txiaj ntsig zoo li no yog qhov yooj yim, tab sis, raws li lawv hais, dab ntxwg nyoog yog nyob rau hauv cov ntsiab lus: muaj ntau yam ntxiv, thiab nws nyuaj rau ua kom tau raws li lawv. Lub caij no, nws yog nyob ntawm lawv lub hauv paus uas NIST tshuaj xyuas xaiv cov neeg sib tw. Nov yog cov txheej txheem uas cov neeg thov kev yeej yuav tsum tau ua raws li:
- muaj peev xwm tiv taus txhua qhov kev tawm tsam cryptanalytic paub thaum lub sijhawm sib tw, suav nrog kev tawm tsam los ntawm cov neeg thib peb raws;
- qhov tsis muaj zog thiab sib npaug ntawm cov yuam sij encryption (sib npaug txhais tau tias cov yuam sij uas, txawm hais tias lawv muaj qhov sib txawv tseem ceeb ntawm ib leeg, ua rau cov ntawv ciphers zoo ib yam);
- qhov encryption ceev yog ruaj khov thiab kwv yees ib yam ntawm tag nrho cov platforms tam sim no (los ntawm 8 mus rau 64-ntsis);
- optimization rau multiprocessor systems, txhawb rau parallelization ntawm kev khiav hauj lwm;
- yam tsawg kawg nkaus yuav tsum tau rau tus nqi ntawm RAM;
- tsis muaj kev txwv rau kev siv hauv cov xwm txheej txheem (raws li lub hauv paus rau kev tsim cov haujlwm hash, PRNGs, thiab lwm yam);
- Cov qauv ntawm cov algorithm yuav tsum tsim nyog thiab yooj yim to taub.
Lub ntsiab lus kawg yuav zoo li coj txawv txawv, tab sis yog tias koj xav txog nws, nws ua rau kev nkag siab, vim tias cov txheej txheem zoo sib xws yog yooj yim dua los txheeb xyuas, thiab nws tseem nyuaj dua los nkaum "bookmark" hauv nws, nrog kev pab ntawm uas tus tsim tawm tuaj yeem tau txais kev nkag mus tsis txwv rau cov ntaub ntawv encrypted.
Kev lees txais cov ntawv thov rau Advanced Encryption Standard kev sib tw tau kav ib xyoos thiab ib nrab. Tag nrho ntawm 15 algorithms tau koom nrog hauv nws:
- CAST-256, tsim los ntawm Canadian tuam txhab Entrust Technologies raws li CAST-128, tsim los ntawm Carlisle Adams thiab Stafford Tavares;
- Crypton, tsim los ntawm cryptologist Chae Hoon Lim los ntawm South Kauslim cybersecurity tuam txhab Future Systems;
- DEAL, lub tswv yim uas yog thawj zaug tau thov los ntawm Danish mathematician Lars Knudsen, thiab tom qab ntawd nws cov tswv yim tau tsim los ntawm Richard Outerbridge, uas tau thov kev koom tes hauv kev sib tw;
- DFC, ib qho kev sib koom ua ke ntawm Paris Tsev Kawm Ntawv Kev Kawm, Fab Kis Lub Tebchaws rau Kev Tshawb Fawb Txog Kev Tshawb Fawb (CNRS) thiab lub koom haum kev sib txuas lus Fabkis Telecom;
- E2, tsim nyob rau hauv kev txhawb nqa ntawm Nyiv lub tuam txhab kev sib txuas lus loj tshaj plaws, Nippon Telegraph thiab Xov Tooj;
- FROG, the brainchild of Costa Rican tuam txhab Tecnologia Apropriada Internacional;
- HPC, tsim los ntawm American cryptologist thiab lej Richard Schreppel los ntawm University of Arizona;
- LOKI97, tsim los ntawm Australian cryptographers Lawrence Brown thiab Jennifer Seberry;
- Magenta, tsim los ntawm Michael Jacobson thiab Klaus Huber rau German telecommunications tuam txhab Deutsche Telekom AG;
- MARS los ntawm IBM, nyob rau hauv lub creation ntawm uas Don Coppersmith, ib tug ntawm cov sau phau ntawv ntawm Lucifer, coj ib feem;
- RC6, sau los ntawm Ron Rivest, Matt Robshaw thiab Ray Sydney tshwj xeeb rau kev sib tw AES;
- Rijndael, tsim los ntawm Vincent Raymen thiab Johan Damen ntawm Catholic University of Leuven;
- SAFER +, tsim los ntawm Californian koom haum Cylink ua ke nrog National Academy of Sciences ntawm Republic of Armenia;
- Serpent, tsim los ntawm Ross Anderson, Eli Beaham thiab Lars Knudsen;
- Twofish, tsim los ntawm Bruce Schneier cov kev tshawb fawb pab pawg raws li Blowfish cryptographic algorithm tau npaj los ntawm Bruce rov qab rau xyoo 1993.
Raws li cov txiaj ntsig ntawm thawj puag ncig, 5 tus neeg kawg tau txheeb xyuas, suav nrog Serpent, Twofish, MARS, RC6 thiab Rijndael. Cov tswv cuab hauv pawg neeg txiav txim tau pom qhov tsis zoo hauv yuav luag txhua qhov ntawm cov txheej txheem teev tseg, tsuas yog ib qho. Leej twg yog tus yeej? Cia peb txuas lub intrigue me ntsis thiab ua ntej xav txog lub ntsiab zoo thiab qhov tsis zoo ntawm txhua qhov kev daws teeb meem.
Lub peb hlis ntuj
Nyob rau hauv rooj plaub ntawm "vajtswv ntawm kev ua tsov ua rog", cov kws tshaj lij tau sau tseg tias tus kheej ntawm cov ntaub ntawv encryption thiab decryption txheej txheem, tab sis qhov no yog qhov uas nws qhov zoo tau txwv. IBM's algorithm yog qhov xav tsis thoob lub zog tshaib plab, ua rau nws tsis tsim nyog rau kev ua haujlwm hauv cov chaw muaj kev txwv. Kuj tseem muaj teeb meem nrog kev sib piv ntawm kev suav. Txhawm rau ua haujlwm tau zoo, MARS xav tau kev txhawb nqa kho vajtse rau 32-ntsis qhov sib npaug thiab qhov hloov pauv-ntsis hloov pauv, uas rov tsim cov kev txwv ntawm cov npe ntawm cov platform txhawb nqa.
MARS kuj tau ua rau muaj kev cuam tshuam rau lub sijhawm thiab lub zog tawm tsam, muaj teeb meem nrog kev nthuav dav ntawm kev ya davhlau, thiab nws qhov kev sib tw ntau dhau ua rau nws nyuaj rau kev txheeb xyuas cov qauv tsim thiab tsim cov teeb meem ntxiv nyob rau theem ntawm kev siv tswv yim. Hauv luv luv, piv rau lwm qhov kawg, MARS zoo li tus neeg sab nraud tiag tiag.
RC6
Lub algorithm tau txais qee qhov kev hloov pauv los ntawm nws cov thawj coj, RC5, uas tau tshawb fawb zoo ua ntej, uas, ua ke nrog cov qauv yooj yim thiab pom, ua rau nws pob tshab rau cov kws tshaj lij thiab tshem tawm qhov muaj "bookmarks." Tsis tas li ntawd, RC6 tau nthuav tawm cov ntaub ntawv khaws cia ceev ntawm 32-ntsis platforms, thiab cov txheej txheem encryption thiab decryption tau siv tib yam nkaus.
Txawm li cas los xij, lub algorithm muaj cov teeb meem zoo ib yam li MARS hais saum toj no: muaj qhov tsis zoo rau sab-channel tawm tsam, kev ua haujlwm ntawm kev txhawb nqa rau 32-ntsis kev ua haujlwm, nrog rau cov teeb meem nrog kev sib piv, kev nthuav dav tseem ceeb, thiab kev xav tau ntawm cov khoom siv kho vajtse. . Nyob rau hauv no hais txog, nws yog nyob rau hauv tsis muaj txoj kev haum rau lub luag hauj lwm ntawm yeej.
Tw
Twofish tau dhau los ua qhov nrawm heev thiab ua kom zoo rau kev ua haujlwm ntawm cov khoom siv hluav taws xob tsawg, tau ua haujlwm zoo heev ntawm kev nthuav cov yuam sij thiab muaj ntau yam kev xaiv, uas ua rau nws muaj peev xwm hloov kho nws mus rau cov haujlwm tshwj xeeb. Nyob rau tib lub sijhawm, "ob ntses" tau ua rau muaj kev cuam tshuam los ntawm kev tawm tsam sab nraud (tshwj xeeb, raws li lub sijhawm thiab kev siv hluav taws xob), tsis yog tus phooj ywg tshwj xeeb nrog cov txheej txheem sib xyaw ua ke thiab muaj ntau qhov nyuaj, uas, los ntawm txoj kev. , kuj cuam tshuam qhov ceev ntawm qhov tseem ceeb expansion.
Nab
Lub algorithm muaj cov qauv yooj yim thiab nkag siab, uas ua rau nws yooj yim rau kev soj ntsuam, tsis yog tshwj xeeb tshaj yog xav tau ntawm lub zog ntawm lub hardware platform, muaj kev txhawb nqa rau nthuav cov yuam sij ntawm ya, thiab kuj yooj yim los hloov, uas ua rau nws sawv tawm ntawm nws. tawm tsam. Txawm li cas los xij, Serpent yog, hauv paus ntsiab lus, qhov qeeb tshaj plaws ntawm cov neeg sib tw kawg, ntxiv rau, cov txheej txheem rau encrypting thiab decrypting cov ntaub ntawv nyob rau hauv nws yog radically sib txawv thiab yuav tsum tau sib txawv hauv paus rau kev siv.
Rijndael
Rijndael tau dhau los ua qhov ze rau qhov zoo tshaj plaws: lub algorithm tau ua tiav raws li NIST cov cai, thaum tsis qis dua, thiab hais txog tag nrho cov yam ntxwv, pom tau zoo dua rau nws cov neeg sib tw. Reindal tsuas muaj ob qhov tsis muaj zog: qhov tsis muaj zog rau kev siv hluav taws xob tawm tsam ntawm cov txheej txheem nthuav dav tseem ceeb, uas yog qhov xwm txheej tshwj xeeb, thiab qee qhov teeb meem nrog kev nthuav dav ntawm qhov tseem ceeb (qhov no ua haujlwm tsis muaj kev txwv rau tsuas yog ob tus neeg sib tw - Serpent thiab Twofish) . Tsis tas li ntawd, raws li cov kws tshaj lij, Reindal muaj qhov qis me ntsis ntawm cryptographic lub zog tshaj Serpent, Twofish thiab MARS, uas, txawm li cas los xij, tau ntau dua li kev them nyiaj los ntawm nws qhov kev tawm tsam rau feem ntau ntawm hom kev tawm tsam sab nraud thiab ntau yam. ntawm kev xaiv ua.
qeb
Nab
Tw
Lub peb hlis ntuj
RC6
Rijndael
Cryptographic zog
+
+
+
+
+
Cryptographic zog cia
++
++
++
+
+
Encryption ceev thaum siv hauv software
-
Β±
Β±
+
+
Qhov tseem ceeb expansion ceev thaum siv hauv software
Β±
-
Β±
Β±
+
Smart cards nrog lub peev xwm loj
+
+
-
Β±
++
Daim npav ntse nrog cov peev txheej tsawg
Β±
+
-
Β±
++
Kev siv kho vajtse (FPGA)
+
+
-
Β±
+
Kev siv kho vajtse (tshwj xeeb nti)
+
Β±
-
-
+
Kev tiv thaiv tawm tsam kev tua lub sijhawm thiab lub zog tawm tsam
+
Β±
-
-
+
Kev tiv thaiv tiv thaiv kev siv hluav taws xob tawm tsam ntawm cov txheej txheem nthuav dav tseem ceeb
Β±
Β±
Β±
Β±
-
Kev tiv thaiv tiv thaiv kev siv hluav taws xob tawm tsam ntawm kev siv daim npav ntse
Β±
+
-
Β±
+
Muaj peev xwm nthuav tus yuam sij ntawm ya
+
+
Β±
Β±
Β±
Muaj cov kev xaiv siv tau (tsis muaj kev sib raug zoo)
+
+
Β±
Β±
+
Muaj peev xwm ntawm kev sib piv
Β±
Β±
Β±
Β±
+
Nyob rau hauv cov nqe lus ntawm tag nrho cov yam ntxwv, Reindal yog lub taub hau thiab lub xub pwg nyom saum nws cov neeg sib tw, yog li cov txiaj ntsig ntawm qhov kev pov npav zaum kawg tau dhau los ua qhov tseeb: lub algorithm yeej ib qho kev yeej, tau txais 86 pov npav rau thiab tsuas yog 10 tawm tsam. Serpent tau txais qhov chaw thib ob uas muaj kev hwm nrog 59 pov npav, thaum Twofish nyob rau hauv thib peb: 31 pawg neeg txiav txim tau sawv rau nws. Lawv tau ua raws los ntawm RC6, yeej 23 pov npav, thiab MARS ib txwm ua tiav hauv qhov kawg, tau txais 13 pov npav nkaus xwb thiab 83 tawm tsam.
Thaum Lub Kaum Hli 2, 2000, Rijndael tau tshaj tawm tias tus yeej ntawm AES kev sib tw, ib txwm hloov nws lub npe mus rau Advanced Encryption Standard, uas tam sim no paub. Cov txheej txheem txheej txheem tau siv sijhawm li ib xyoos: Lub Kaum Ib Hlis 26, 2001, AES tau suav nrog hauv cov npe ntawm Tsoom Fwv Teb Chaws Cov Ntaub Ntawv Txheej Txheem, tau txais FIPS 197 index. Cov txheej txheem tshiab kuj tau txais txiaj ntsig zoo los ntawm NSA, thiab txij li Lub Rau Hli 2003, Asmeskas Lub Koom Haum Saib Xyuas Kev Ruaj Ntseg Hauv Tebchaws txawm lees paub AES nrog 256-ntsis qhov tseem ceeb encryption muaj zog txaus los xyuas kom muaj kev ruaj ntseg ntawm cov ntaub ntawv zais cia sab saum toj.
WD Kuv Phau Ntawv sab nraud tsav txhawb AES-256 kho vajtse encryption
Ua tsaug rau kev sib koom ua ke ntawm kev ntseeg siab thiab kev ua tau zoo, Advanced Encryption Standard sai tau txais kev lees paub thoob ntiaj teb, dhau los ua ib qho ntawm cov neeg nyiam tshaj plaws hauv lub ntiaj teb thiab suav nrog ntau lub tsev qiv ntawv cryptographic (OpenSSL, GnuTLS, Linux's Crypto API, thiab lwm yam). AES tam sim no tau siv dav hauv kev lag luam thiab cov neeg siv khoom siv, thiab tau txais kev txhawb nqa hauv ntau yam khoom siv. Tshwj xeeb, AES-256 hardware encryption yog siv nyob rau hauv Western Digital's My Book tsev neeg ntawm cov tsav sab nraud los xyuas kom meej kev tiv thaiv cov ntaub ntawv khaws cia. Cia peb saib ze dua ntawm cov cuab yeej no.
WD Kuv Phau Ntawv kab ntawm desktop hard drives suav nrog rau 4 tus qauv ntawm qhov sib txawv: 6, 8, 10, 12, 14 thiab 7 terabytes, tso cai rau koj xaiv cov cuab yeej zoo tshaj plaws rau koj cov kev xav tau. Los ntawm lub neej ntawd, sab nraud HDDs siv exFAT cov ntaub ntawv kaw lus, uas ua kom muaj kev sib raug zoo nrog ntau yam kev khiav haujlwm, suav nrog Microsoft Windows 8, 8.1, 10 thiab 10.13, nrog rau Apple macOS version XNUMX (High Sierra) thiab siab dua. Linux OS cov neeg siv muaj lub sijhawm los txuas lub hard drive siv tus tsav tsheb exfat-nofuse.
Kuv Phau Ntawv txuas rau koj lub computer siv lub siab ceev USB 3.0 interface, uas yog rov qab tau tshaj USB 2.0. Ntawm qhov tod tes, qhov no tso cai rau koj hloov cov ntaub ntawv ntawm qhov ceev tshaj plaws, vim tias USB SuperSpeed ββbandwidth yog 5 Gbps (uas yog, 640 MB / s), uas yog ntau tshaj li txaus. Nyob rau tib lub sijhawm, qhov rov qab sib raug zoo feature ua kom muaj kev txhawb nqa rau yuav luag txhua lub cuab yeej tso tawm hauv 10 xyoo dhau los.
Txawm hais tias Kuv Phau Ntawv tsis xav tau kev teeb tsa software ntxiv ua tsaug rau Plug thiab Play thev naus laus zis uas tuaj yeem kuaj pom thiab teeb tsa cov khoom siv sab nraud, peb tseem pom zoo kom siv WD Discovery software pob khoom uas tuaj nrog txhua lub cuab yeej.
Cov txheej txheem suav nrog cov ntawv thov hauv qab no:
WD Drive Utilities
Qhov kev zov me nyuam tso cai rau koj kom tau txais cov ntaub ntawv tshiab txog lub xeev tam sim no ntawm tus tsav raws li cov ntaub ntawv SMART thiab tshawb xyuas lub hard drive rau cov haujlwm tsis zoo. Tsis tas li ntawd, nrog kev pab ntawm Drive Utilities, koj tuaj yeem rhuav tshem tag nrho cov ntaub ntawv khaws tseg rau hauv koj Phau Ntawv Kuv: qhov no, cov ntaub ntawv yuav tsis tsuas yog muab tshem tawm, tab sis kuj tseem sau tag nrho ob peb zaug, yog li ntawd nws yuav tsis ua tau ntxiv lawm. los kho lawv tom qab ua tiav cov txheej txheem.
WD thaub qab
Siv cov khoom siv no, koj tuaj yeem teeb tsa cov thaub qab raws li lub sijhawm teev tseg. Nws yog ib qho tsim nyog hais tias WD Backup txhawb kev ua haujlwm nrog Google Drive thiab Dropbox, thaum tso cai rau koj xaiv ib qho kev sib txuas ntawm qhov chaw mus rau qhov chaw thaum tsim kev thaub qab. Yog li, koj tuaj yeem teeb tsa tsis siv neeg hloov pauv cov ntaub ntawv los ntawm Kuv Phau Ntawv mus rau huab lossis import cov ntaub ntawv tsim nyog thiab cov folders los ntawm cov kev pabcuam teev tseg rau ob qho tib si sab nraud hard drive thiab lub tshuab hauv zos. Tsis tas li ntawd, nws muaj peev xwm synchronize nrog koj tus account Facebook, uas tso cai rau koj tuaj yeem tsim cov duab thaub qab thiab cov yeeb yaj kiab los ntawm koj qhov profile.
WD Security
Nws yog nrog kev pab ntawm qhov hluav taws xob no uas koj tuaj yeem txwv tsis pub nkag mus rau tus tsav nrog tus password thiab tswj cov ntaub ntawv encryption. Txhua yam uas yuav tsum tau ua rau qhov no yog qhia tus password (nws qhov ntev tshaj plaws tuaj yeem ncav cuag 25 tus cim), tom qab ntawd tag nrho cov ntaub ntawv ntawm lub disk yuav raug encrypted, thiab tsuas yog cov neeg uas paub tus password yuav nkag mus rau cov ntaub ntawv khaws tseg. Txhawm rau kom yooj yim ntxiv, WD Security tso cai rau koj los tsim cov npe ntawm cov cuab yeej ntseeg siab uas, thaum txuas nrog, yuav qhib Kuv Phau Ntawv.
Peb hais ntxiv tias WD Kev Ruaj Ntseg tsuas yog muab qhov pom kev yooj yim rau kev tswj hwm kev tiv thaiv cryptographic, thaum cov ntaub ntawv encryption yog ua los ntawm tus tsav sab nraud nws tus kheej ntawm qib kho vajtse. Txoj kev no muab ntau qhov txiaj ntsig tseem ceeb, uas yog:
- lub tshuab hluav taws xob random tus lej, tsis yog PRNG, yog lub luag haujlwm tsim cov yuam sij encryption, uas pab ua kom tiav qib siab ntawm entropy thiab nce lawv cov cryptographic zog;
- Thaum lub sij hawm encryption thiab decryption txheej txheem, cryptographic yuam sij tsis downloaded mus rau hauv lub computer lub RAM, thiab tsis yog ib ntus luam ntawm cov ntaub ntawv ua tiav tsim nyob rau hauv zais folders ntawm lub system tsav, uas yuav pab txo tau qhov yuav tshwm sim ntawm lawv cuam tshuam;
- qhov ceev ntawm kev ua cov ntaub ntawv tsis nyob ntawm txhua txoj kev ntawm kev ua haujlwm ntawm tus neeg siv khoom;
- Tom qab ua kom muaj kev tiv thaiv, cov ntaub ntawv encryption yuav raug ua tiav, "ntawm ya", yam tsis tas yuav tsum tau ua ntxiv rau ntawm tus neeg siv.
Tag nrho cov saum toj no lav cov ntaub ntawv kev ruaj ntseg thiab tso cai rau koj yuav luag tag nrho cov muaj peev xwm ntawm tub sab ntawm cov ntaub ntawv tsis pub lwm tus paub. Noj mus rau hauv tus account lub peev xwm ntxiv ntawm tus tsav, qhov no ua rau Kuv Phau Ntawv yog ib qho ntawm cov khoom siv tiv thaiv zoo tshaj plaws muaj nyob rau hauv kev ua lag luam Lavxias.
Tau qhov twg los: www.hab.com