Kev ntaub ntawv to channel. Identification kev ntaub ntawv to raws

Niaj hnub no, muaj thiab tsoom fwv espionage prospers. Tsaug rau txoj kev loj hlob ntawm cov ntaub ntawv technology txhua txhua hnub muaj txoj kev tshiab ntawm spying thiab illegally muab cov ntaub ntawv hais txog cov dej num ntawm lawv cov neeg sib tw. Kev raws ntawm to ntawm ntaub ntawv tshwm sim los ntawm lub cev transducers. Kiag li tej hluav taws xob ntaus ntawv nyob rau hauv lub chav tsev muaj peev xwm ua tau lub hauv paus ntawm lub los, nyob rau hauv lem, nws muaj peev xwm yuav ntes tau thiab neutralized. Ntxiv mus defuse nws feem ntau yooj yim dua nrhiav.

Txheej txheem cej luam

Qhia ntaub ntawv los ntawm ib tug teb los yog tshuaj yeeb dej caw. Koj muaj peev xwm nyiag ib lub suab yoj, electromagnetic tawg mus cuam tshuam los yog siv lub qub txoj kev thiab tuaj tos ntawm daim ntawv, cov kev xaiv uas muaj ntau. Tab sis lawv tsuas yog muaj. Paim quav xwb - nws yog tawm ntawm kev tswj zais ntaub ntawv sab nraum lub enterprise los yog pab pawg neeg ntawm cov neeg uas nws muaj.

Ntawm no, lub sij hawm "kev channel ntaub ntawv to" yog meant rau lub cev txoj kev los ntawm qhov chaw mus rau lub attacker. Los ntawm nws yog qhib mus saib tau rau thaum cov ntaub ntawv. Tam sim no, muaj plaub hom ntawm cov ntaub ntawv hloov lwm lub tsev, namely acoustic thiab electromagnetic vuag, lub teeb kab teeb, thiab cov ntaub ntawv.

kev faib

Ib suam ntawm kev raws ntawm cov ntaub ntawv to yog raws li nyob rau hauv lub division ntawm lawv pab pawg. Muaj tej yam ntuj tso thiab qhia tshwj xeeb uas tsim raws. Tus thawj yuav tshwm sim raws li ib tug tshwm sim ntawm stray electromagnetic tawg thaum lub sij hawm ua ntawm cov ntaub ntawv los yog txawv teb chaws conductors. Nyob rau hauv lub thib ob cov ntaub ntawv nyob rau hauv ib tug qhia tshwj xeeb uas ua tswvcuab pab kiag li lawm tsim los cuam tshuam. Rau lub hom phiaj no, lub receivers thiab broadband directional antennas. Xav kev ntaub ntawv to raws, nws yog tsim nyog kuj yuav coj mus rau hauv tus account qhov chaw ntawm cuam.

Kev pab tiv thaiv tiv thaiv acoustic espionage

Microphone nyhuv yuav tshwm sim nyob rau hauv tej dais uas muaj inductor Piezooptic transducers los yog nce mus nce los capacitors. Tej kev sib tham ua teb hloov mus hloov los hais tias cov pab kiag li lawm yuav ntes. Yuav kom tiv thaiv koj lub koom haum los ntawm no hom ntawm to, siv lub koom haum thiab kev ntsuas. Tus thawj - yog lov tes taw los yog hloov tus ntaus ntawv. Ob - txuas tshwj xeeb kev nyab xeeb pab kiag li lawm hu cov kab.

Niaj hnub nimno pab kiag li lawm yog manufactured nyob rau hauv daim ntawv ntawm cov xov tooj nyob, yog li ntawd lawv muaj visually qhia competitors tsis tau. Ua ntej kev ruaj ntseg kev channel ntaub ntawv to check, yog nws muaj tiag tiag microphonic nyhuv. Rau lub hom phiaj no tshwj xeeb cov khoom kom paub tias cov cuam tshuam, suab nrov thiab thiaj li nyob.

Kev pab tiv thaiv tiv thaiv electromagnetic espionage

Txhais tau tias kev telecommunication, thiab lwm yam xov tooj cua-hluav taws xob muaj electromagnetic tawg. Nws yog tsim nyog los hloov cov ntaub ntawv, tab sis tseem muaj pliaj tsis nyob rau hauv daim ntawv ntawm tawm ntawm band, thiab electromagnetic suab nrov. Nws yog los ntawm cov kev dim ntawm cov ntaub ntawv tej zaum yuav tshwm sim. Qhov xwm ntawm no tawg nyob rau hauv lub ntau yam ntawm cov khoom.

Thaum ua ntaub ua ntawv los ntawm ib tug luv luv-ntau pab kiag li lawm siv magnetic tivthaiv, distal - electromagnetic tawg. Yog li kev ntaub ntawv to channel yuav cuam tshuam nrog lub teb. Nws yuav yog nyob ntawm seb qhov loj ntawm lub chav tsev, qhov chaw ntawm kev nyeem ntawv cov khoom thiab cov ntaub ntawv los ntawm uas nws yog tsim. Yuav kom txiav txim seb qhov los, koj yuav tau mus xyuas ob lub teb thiab lub nyob ze thiab nyob deb.

Lub ntsiab txoj kev tiv thaiv

Thaum lub caij, niaj hnub siv tshuab tso cai rau txiav txim seb lub dag lub zog ntawm lub electromagnetic teb heev yog. Rau lub hom phiaj no, tshwj xeeb cov cuab yeej thiab analytics. Tab sis los mus txiav txim yuav ua li cas ntxhov siab tag nrho cov teb, tsis tau nws yog tsis yooj yim sua kom meej. Nws yog qhov zoo tshaj plaws nraaj nrhiav pab kiag li lawm nyob rau hauv lub chav tsev, thiaj li tsis mus overlay lawv tawg ntawm txhua lwm yam. Qhov no ho simplifies cov kev validation thiab kev qhia kom paub ntaub ntawv to raws.

Qhov tseem ceeb tshaj nyob rau hauv lub tiv thaiv tawm tsam xws txia yog kom tsis txhob muaj teeb liab, uas yog, lawv tsis tau tawm mus lwm lub tuam txhab. Muaj tej kev cai thiab pub qhov tseem ceeb ntawm lub vuag, koj yuav tsum nruab ib lub khoom tiv thaiv kom txhob tau nkag mus rau hauv kev nkag mus rau cov kab ntawm kev sib txuas lus competitors. Yuav kom tiv thaiv cov ntaub ntawv los ntawm spurious emissions yuav tsum tau nqa tawm ib tug xov tooj ntawm kev ntsuas, namely:

• Nruab tag nrho cov pab kiag li lawm, uas ua rau to, nyob rau hauv tej thaj chaw feem ntau nyob deb los ntawm tus ciaj ciam ntawm lub teb chaws, uas yog los.
• Muab shielding ntawm thaj chaw, vaj tse thiab kev sib txuas lus ruaj.
• Nws yog qhov zoo tshaj plaws los mus siv ib lub zos uas tsis muaj kev nkag tau tshaj rau hauv ib ncig.
• Tag nrho cov junctions nyob rau hauv lub hwj chim thiab av tes hauj lwm ua heev dua lwm yam nyob rau hauv lub tiv thaiv cheeb tsam.
• Koj yuav tau teem cov ntxaij lim dej suppress.

Yog hais tias muaj yog ib tug suspicion hais tias tus tiv thaiv ntawm cov ntaub ntawv tiv thaiv to los ntawm kev raws tsis tau kev pab, thiab muaj ib tug los, ces mus ntes nws, koj muaj peev xwm siv xim voltmeters, xab receivers sector analyzers thiab lwm yam tej khoom.

Kev pab tiv thaiv tiv thaiv spying on circuits

To los ntawm qhov uas tswj cheeb tsam thiab tej zaum yuav tshwm sim los ntawm lub daim phiaj uas tus cob cog rua kev kho vajtse. Feem ntau cov feem ntau cov kev sib txuas thiab nyob rau hauv no txoj kev nyiag ntaub ntawv siv hwj chim khoom siv uas tsim dua frequencies. Mus nqa tawm tus tiv thaiv ntsuas yog mas siv txoj kev thaiv circuits.

Ua li no, nruab tshwj xeeb network cov ntxaij lim dej, transformers thiab zoo sib xws cov khoom uas tiv thaiv lub chav tsev ntawm lub ntxiv jumps nyob rau hauv hluav taws xob tsis. Ib tug loj mus kom ze rau ib tug ruaj ntseg thiab kev tiv thaiv cheeb tsam teem ib tug neeg transformers, los ntawm kev uas cov kis ntawm hluav taws xob rau lub tsev. Nyob rau hauv no txoj kev uas nws tshwm sim hauv lub feem ntau txhim khu kev qha kev tiv thaiv ntawm cov ntaub ntawv los ntawm to los ntawm kev raws los ntawm daim phiaj.

grounding

Nws tseem ceeb heev them sai sai mus rau hauv av. Nws yog ib qho tseem ceeb rau nruab tag nrho cov khoom thiab kev tiv thaiv nws los ntawm intruders. Nruab av sab nraum zoov ua ntawm ib tug tob ntawm ntau tshaj ib nrab ntawm ib 'meter'. Nyob rau hauv tib lub tsev lawv yuav tsum tau ntsia tau rau hauv xws li ib txoj hais tias nws twb tau mus tsis tu ncua saib lub sam xeeb thiab cov nyob rau ntawm ntxiv kev sib txuas.

Kev sib nrig sib influences nyob rau hauv kev sib txuas lus kab

Nws yog lub npe hu hais tias cov ntaub ntawv kis tau tus mob kab yuav muaj ib feem nyob rau txhua lwm yam. Sej saw hu ua lub Circuit Court uas generates thawj hwj lub electromagnetic teb. Ntxiv muaj cov twb ib cov saw hauv cov teb yog thov. Dhau li ntawm tus ncaj nyhuv ntawm chains rau txhua lwm yam, muaj kuj yog ib qho indirect nyhuv uas tej zaum yuav tshwm sim vim lub teeb liab reflections. Raug tej zaum yuav systematic thiab random.

Nyob rau hauv Feem ntau, lawv tshwm sim los ntawm cov nyob ntawm tej vaj huam sib luag loj, teem nyob rau hauv ib tug nyiaj siv ua haujlwm qhov chaw. Random tib los tshwm sim raws li ib tug tshwm sim ntawm ib tug txuas yam uas yuav tsis tau kwv yees los yog kwv yees. Yuav kom ua tau ib lub tej yam kev mob ntawm raug nyob rau hauv ib tug cable yuav tsum tau shielded thiab lwm yam tsis. Nws hais ntxiv hais tias cov kev interferences yog tsis muaj kev nyab xeeb, thiab los ntawm lawv muaj peev xwm yuav nqa tawm kev txawj ntse raws ntawm cov ntaub ntawv to. Nyob rau hauv cov ntaub ntawv ntawm kev puas tsuaj los yog xeb lub cables, uas yog heev feem ntau rooj plaub nyob rau hauv kev xyaum, lawv pib emit muaj zog Pib ntsais koj teeb lub electromagnetic teb.

Kev pab tiv thaiv los ntawm raug

Cov khoom yuav muaj kev tiv thaiv tiv thaiv kev sib nrig sib cawv. Ua li no, thov lub tsim nyog ntsuas, namely:

• Siv ib tug kis kab thiab ib tug kev sib txuas lus system, nyob rau hauv uas lub kev sib nrig sib cawv ntsuas muaj raws li cov uas tsis muaj. Koj muaj peev xwm yuav luag tag daws tau qhov teeb meem, yog hais tias tsuas mus nrhiav kom tau fiber-optic thiab coaxial cables.
• Xaiv cables rau txawv systems zoo, hais tias yog, mus sim kom txawm peem rau tag nrho cov tham ntawm symmetrical kab.
• Ntaub thaiv npog nyob ntawm tej saj zawg zog circuits thiab txhav cov ntxaij vab tshaus, nws yuav muab ib tug txo nyob rau hauv kev sib nrig sib cawv vim txo nyob rau hauv cov kev siv ntawm cov electromagnetic teb los ntawm qhov kev tshuaj ntsuam.

Kev pab tiv thaiv tiv thaiv espionage nyob rau hauv fiber-optic kev sib txuas lus tshuab thiab

Hais tias kho qhov muag fiber kev sib txuas lus raws cov kab kev to ntawm acoustic ntaub ntawv. Muaj ntau ntau yam uas cov raws yuav ua rau poob ntawm kis tau tus mob thiab attackers pub leej twg paub, lus rhiab:

• Fiber abutting radially uncoordinated.
• Axis fibers inconsistent angular hom.
• Nruab nrab ntawm lub kawg ntsej muag ntawm kho qhov muag fibers tsim kis.
• Nplaim cov fiber xaus yog tsis nrog mus tib seem.
• Muaj yog ib tug txawv nyob rau hauv txoj kab uas hla ntawm lub cores ntawm fibers uas yog koom ua ke.

Qhov saum toj no yog vim li cas tej zaum yuav lub teeb qhov chaw ntawm lub teeb Pib ntsais koj teeb nyob rau hauv lub electromagnetic teb nyob rau hauv lub chav tsev. Vim li no, tej zaum nws yuav ua tau ib tug acousto-optic nyhuv. Nyob rau hauv lub waveguide yuav tshwm sim acoustic siab, vim uas nws muaj nuj nqis tej zaum yuav hloov. Yuav kom tiv thaiv cov kev raws ntawm cov ntaub ntawv to ntawm lub suab, peb yuav tsum xub xyuas seb vim li cas muaj thiab kis lub teeb nyob rau hauv lub cev lawm. Ces nws yog tsim nyog los tiv thaiv lub waveguide, xa tej zaj tej yam rau nws.

Nws yuav tsum tau borne nyob rau hauv lub siab hais tias tus kho qhov muag fiber cable npog, yuav cuam tshuam rau rhiab heev ntawm tus kho qhov muag fibers, nyob ntawm seb cov ntaub ntawv uas los ntawm uas nws yog ua thiab hlau thickness. Los xyuas kom meej qhov rhiab heev yuav txo tau tej zaum yuav loj fiber ntej yuav txhim kho tshwj xeeb tshuaj uas muaj siab qhov tseem ceeb ntawm tej moduli. Feem ntau cov feem ntau, qhov no yog ua li cas siv txhuas, npib tsib xee los yog iav.

xaus

Tam sim no, muaj ntau ntau yam txhais tau tias los ntawm txia ntawm kev raws. Nyob rau hauv view ntawm kev loj hlob ntawm cov ntaub ntawv yees thiab lub zog naj npawb ntawm cov txuj kom muaj espionage, tej enterprise muaj ntaub ntawv yuav tsum tiv thaiv lawv tus kheej los ntawm tej txia. Yog hais tias zoo txoj kev ua tus teeb meem thiab siv tag nrho cov hom ntawm kev tiv thaiv hom kev kawm, peb yuav txo tau txoj kev pheej hmoo ntawm to ntawm ib qho tseem ceeb cov ntaub ntawv rau lub tuam txhab. Yog hais tias tag nrho cov ntawm cov hom kev kawm tsis tau los xij, ces tu ncua tsim nyog mus xyuas tag nrho cov tau txhais tau tias kev sib txuas lus thiab kev raws mus ntes thiab neutralize lub ntaus ntawv, nyeem thiab kis cov lus qhia.

Nyob rau hauv peb lub sij hawm, nws yog tsis yooj yim sua twv seb yuav ua li cas lub hackers tau mus rau hauv lub tiv thaiv cheeb tsam thiab rau nruab tshwj xeeb cov khoom rau kev nyeem ntawv. Tab sis qhov saib xyuas thiab kev tiv thaiv cov khoom tau tiv thaiv no. Nyob rau hauv tas li ntawd, cov tsos ntawm cov shielded kav hlau txais xov thiab xav zoo heev nce tau ntawm tub sab tub nyiag ntaub ntawv. Nws yog yog li ntawd tseem ceeb heev los saib xyuas qhov electromagnetic teb sab hauv thiab ib ncig ntawm nws. Tej kev txhais tau tias ntawm espionage yuav ntes thiab neutralize, ceeb tshaj dua, mus rau qhov chaw no qhov teeb meem thiab siv cov muaj kev pab kiag li lawm tsim rau lub hom phiaj no.