Yini i-Signal?
I-Signal iyuhlelo lokuthumela imiyalezo olumahhala, oluvulekile, olukuvumela ukuthumela umbhalo, izwi, ividiyo, nemiyalezo yamafayela ngokubethela okuqinile kakhulu okusuka ekuqaleni kuya ekupheleni okutholakala kubathengi. Ithuthukiswa yi-Signal Foundation, inhlangano engahloseli inzuzo yase-US, futhi ixhaswa ngokuphelele yminikelo — ayikho izikhangiso, ayikho ukuthengisa kwedatha, ayikho ileveli ephakeme.
Uhlelo lunconyelwa yiyo yonke inhlangano enkulu yobumfihlo (EFF, Tor Project, Privacy International), lusetshenziwa yizindaba, abavikeleli, omashulolwazi, nabacwaningi bezokuphepha emhlabeni wonke, futhi lunconyelwa ngu-Edward Snowden njengesithunywa asebenzisa nsuku zonke.
Okwenza i-Signal ihluke
Izithunywa eziningi "ezibethelwe" zivikela umyalezo wakho endleleni kodwa ziveza ulwazi oluningi ngawe enkampanini yazo:
| Isici | Signal | Telegram | iMessage | SMS | |
|---|---|---|---|---|---|
| Kubethelwe kusuka ekuqaleni kuya ekupheleni ngokuzenzakalelayo | ✅ | ✅ | ❌ (kuphela "Ingxoxo Eyimfihlo") | ✅ (Apple↔Apple) | ❌ |
| Amakhasimende avulekile | ✅ wonke amapulatifomu | ❌ | engxenyeni | ❌ | n/a |
| Iseva evulekile | ✅ | ❌ | ❌ | ❌ | n/a |
| Ukunciphisa imininingo | ✅ okumatasa | ❌ kwabiwe ne-Meta | ❌ kubekezelwe | engxenyeni | ❌ |
| Umthumeli ovaliwe | ✅ | ❌ | ❌ | ❌ | ❌ |
| Iqhutshwa yinhlangano engahloseli inzuzo | ✅ | ❌ (Meta) | ❌ | ❌ (Apple) | n/a |
| Ixhaswa yizikhangiso noma idatha | ❌ soze | ✅ (izikhangiso ze-Meta) | engxenyeni | n/a | n/a |
Inhlanganisela yalezi migqa yinto eyenza i-Signal iyingqayizivele. Ezinye izithunywa zingase zilingane ne-Signal amandleni okubethela, kodwa alukho olunye ukhetho olukhulu olulingana nephakethe eliphelele lokubethela okuqinile, imininingo encane, ikhodi evulekile ngokuphelele, nemodeli yoxhaso ehlanganiswe ngendlela esekelana nobumfihlo bomsebenzisi.
Ukubethela okusuka ekuqaleni kuya ekupheleni, ngendlela efanele
I-Signal isebenzisa iPhrothokholi ye-Signal (ekuqaleni i-Axolotl), umklamo wokubethela owesezingeni eliphezulu ohlanganisa:
- I-Double Ratchet — ikhiqiza ukhiye omutsha wokubethela womyalezo wonke, ukuze ngisho nokuba ukhiye owodwa uphahlazwe ngandlela thile, umyalezo owodwa kuphela ovezwa
- Ukuphepha kwesikhathi esidlulile — imiyalezo yangaphambili ihlala iphephile ngisho nokuba ukhiye wakho wamanje uvuza
- Ukuphepha kwesikhathi esizayo (ukuphepha kwangemva kokuphahlazeka) — uma ukhiye wakho uvuza, uhlelo luzisilisa ngokuzenzakalelayo ukuze imiyalezo yesikhathi esizayo iphinde iphephile
- Ukuphika — imiyalezo iqinisekisa ubuqiniso kumamukeli kodwa hhayi kwiqembu lesithathu, ngakho akekho umuntu ongaqinisekisa ukuthi uthumele umyalezo othile ngemva kwesikhathi
Iphrothokholi yakhelwe kahle kangangokuba i-WhatsApp, i-Facebook Messenger, i-Google Messages, ne-Skype zonke ziyisebenzisa ngelayisenisi ukuze zibethele ngazo. Uma izinhlelo zokuthumela imiyalezo ezinkulu kakhulu emhlabeni zidinga ukubethela ezizithemba, ziyela umklamo we-Signal.
Ukuqaliswa kwe-cryptographic kushicilelwe obala futhi kuhlolwe ngabacwaningi bezokuphepha abazimele — kufaka phakathi ubufakazi bemathemathiki obesemthethweni bezici zeprothokholi obushicilelwe emaphepheni ahlolwa ngabadlalindima.
Imininingo: lapho i-Signal inqoba khona ngempela
Ukubethela kuvikela okuqukethwe komyalezo. Imininingo — ubani owawuxoxa naye, nini, kangakanani, kusuka kuphi — ikuvamise ukuveza kakhulu kunokuqukethwe ngokwakho. Umlawuli weNSA uStewart Baker wathi ngokudumile: "Siyababulala abantu ngokusekelwe emininingo."
Izithunywa eziningi zigcina imininingo ebanzi. I-WhatsApp yabelana nenkampani ezalayo iMeta:
- Uhlu lwakho loxhumana nawe
- Ubani owathumelela kuye imiyalezo nanini
- Ikheli lakho le-IP ngesikhathi somyalezo
- Ubulungu bamaqembu
- Isimo sokugcina kubonwa
I-Signal, ngomklamo, igcina lutho oluphantse lungabi lutho:
- ❌ alukho uhlu loxhumana nawe (kufaniswa wendawo kudivaysi yakho kusetshenziswa ama-hash e-cryptographic)
- ❌ awekho amalogi okuhola imiyalezo
- ❌ alikho igrafu lokuthi-ubani-uxoxa-nobani
- ❌ amalunga amaqembu asemelayo
- ❌ ama-timestamps okugcina kubonwa agcinwe embindini
- ✅ usuku lokudala i-akhawunti
- ✅ isikhathi sokuxhuma okokugcina (siguduzisiwe osukwini)
Uma i-FBI isiveza i-Signal — futhi bekwenzile, izikhathi eziningi — yamukela kuphela lezi zinsimu ezimbili zokugcina. I-Signal ishicilela yonke isicelo sikahulumeni nempendulo yayo ku-https://signal.org/bigbrother/. Umehluko phakathi kwalokho okucelelwa nalokho i-Signal engakwazi ukukupha kuyamangalisa.
Umthumeli Ovaliwe
I-Signal iya phambili ngesici esibizwa ngokuthi Umthumeli Ovaliwe. Ngokuvamile iseva kufanele yazi ukuthi ubani othumela umyalezo ukuyokulethela. Umthumeli Ovaliwe usebenzisa imvulophu ye-cryptographic ukuze ngisho neseva ye-Signal ngokwayo ingakwazi ukubona ukuthi ubani othumele umyalezo — kuphela ukuthi ukhombeliswe kubani. Iseva iyehla ibe yinto edlulisayo elinganaki engazi ukuthi ubani oxoxa nobani.
Kungani okuvulekile kubalulekile
I-Signal ishicilela ikhodi egcwele yomthombo wonke amakhasimende (iOS, Android, Desktop, web) neseva. Lokhu kusho ukuthi:
- Abacwaningi bezokuphepha abazimele bangahlola umugqa wonke
- Ungakwakhela i-Signal uqobo futhi uqinisekise ukuthi i-binary eshicelelwe iyafana
- Amaphutha namabhodlela angemuva angabonwa noma ngubani, hhayi kuphela inkampani
- Ama-forks njengo-Molly (ikhasimende le-Android Signal eliqinisiwe) aqinisekisa ukuthi umklamo uqinile
Qhathanisa nezithunywa ezivaliwe lapho kufanele uthembe khona izimangalo zenkampani mayelana nokuthi uhlelo lwayo lwenzani. Ikhodi ye-Signal iku-https://github.com/signalapp ukuze umuntu noma nguwuphi ayihlole.
Umbuzo wenombolo yefoni
Ukugxekwa okukhulu kakhulu kobumfihlo kwe-Signal kwebesukuqala kwaba ukuthi kudinga inombolo yefoni ukubhalisa. Lokhu kuyiqiniso lokunquma: izinombolo zefoni zenza ukutholwa kulula ("bona ukuthi abaphi koxhumana nami abasekhona ku-Signal"), kodwa futhi ziyilusu lolwazi olukhomba umuntu.
Impendulo ye-Signal, ethunyelwe ngo-2024:
- Amagama abasebenzisi angenakho — ungakwazi ukuxoxa nomuntu usebenzisa igama lomsebenzisi esikhundleni senombolo yefoni, ukuze umamukeli angaze abone inombolo yakho
- Ukuguqula ukutholakala kwenombolo yefoni — ungacela ukuxhuma ngegama-lomsebenzisi-noma-isixhumaniso, uzifihle kusuka ocingweni "ngithola ngezinombolo zefoni"
- Izinombolo zefoni zihlala zibotshwe ku-akhawunti ngaphansi — i-Signal isasisebenzisa ukuze ziqinisekise nge-SMS ekubhaliseni nasekuqinisekiseni kabusha
Uma inombolo yakho yefoni ibucayi kakhulu (ungumdlobi wezindaba ovikela imithombo, umvikeleli endaweni enmubi, njl.), indlela ejwayelekile ukubhalisa i-Signal ngenombolo yesibili — Google Voice, Twilio, JMP.chat, noma i-SIM efonini elihlukile — bese uyisebenzisa njengokuzazi kwakho kwe-Signal. Inombolo yesibili kufanele ihlale ifinyeleleka ukuze iqinisekise kabusha ngezikhathi.
Izici ezisebenzayo ezibalulekile
Ngaphezu kokubethela, i-Signal ifaka izici zobumfihlo ezinye izithunywa ezinganazo noma eziphethe njengekilasi lesibili:
Imiyalezo elahlekayo
Misa isilinganisi sokuxhumana ngalinye (imizuzwana emi-5 kuya emavikini ama-4) futhi imiyalezo izisula ngokuzenzakalelayo ngemva kokuba umamukeli eyifundile. Ungamisa nesilinganisi esizenzakalelayo sangxoxo zonke ezintsha. Kubalulekile ezingxoxweni ezinobucayi: uma ifoni yakho idonselwa kamuva noma iphahlazeka, umlando osulwa sewu-gone.
Ukukhiya isikrini
Khiya uhlelo lwe-Signal ngokwalo ngemuva kwe-Face ID, Touch ID, noma i-PIN yedivaysi yakho — ehlukile ekuvuleni idivayisi. Kusho ukuthi ifoni evulwe-futhi-yethulwa isengavezi imiyalezo yakho.
Inowuthi Kuye
I-Signal ihlanganisa ingxoxo "Inowuthi Kuye" eyiphephandaba langasese elebethelwe kusuka ekuqaleni kuya ekupheleni elivumelane phakathi kwamadivaysi akho. Kuyasiza ekugcineni amakhodi e-2FA, izixhumaniso ofuna ukuzifunda kamuva, noma amanowuthi amafushane — konke ngeziqinisekiso ezifanayo zokuphepha njengemiyalezo kwabanye abantu.
Izibuyekezo zesinayela-style
I-Signal Stories isebenza njengo-Instagram noma i-WhatsApp Stories kodwa ngokubethela okufanayo kwe-E2E. Khetha ngokunembe ukuthi oxhumana nabaphi abangabona isinayela ngasinye; akukho okuvuzayo ekusindini noma ohlelweni lwemihlahlandlela.
Amakholi ezwi nevidiyo
Amakholi e-Signal abethelwe kusuka ekuqaleni kuya ekupheleni ngeprothokholi efanayo, kufaka phakathi amakholi eqembu kuze kube ngabadlalindima abangama-50. Ikhwalithi yomsindo ihle, futhi amakholi adluliswa ngamaseva okudlulisela e-Signal ukuze abadlalindima bobabili bangadingeki ukuveza i-IP yabo komunye nomunye.
Ukuvumelanisa phakathi kwamadivaysi
I-Signal isebenza kumadivayisi amaningi axhunywe ku-akhawunti efanayo — ifoni yakho (eyinhloko), kanye nezinhlelo ze-desktop ze-macOS, Windows, Linux, nezinhlelo ze-iPad. Amadivaysi axhunyiwe amukela imiyalezo ngokuzimele; awudingi ifoni yakho ibe ku-inthanethi ukuze i-desktop isebenze.
I-Signal ayikho ekahleni kakhulu
Ukuhlola okwenembayo kokuncintisana:
- Alukho ukubuyela ku-SMS — uhlelo lwe-Android lwe-Signal lulahle ukusekela i-SMS ngo-2023. Abanye abasebenzisi bakuphuthelwa ibhokisi elivumelanisiwe.
- Awekho amandlela okusipehlela emafwini ngokuzenzakalelayo ku-iOS — umlando wakho wemiyalezo uhlala kudivaysi yakho. Ukudluliselela efonini elisha kudinga inqubo yokudlulisela; uma ifoni yakho ilahleka ngaphandle kokudlulisela, umlando wakho wemiyalezo ulahleka. (Lokhu futhi kuyisici sobumfihlo: akukho lutho umhlaseli anganquma i-iCloud ngalo.)
- Abasebenzisi abambalwa kune-WhatsApp — oxhumana nawe bangase bengakabi ku-Signal okwamanje. Kuvamise ukuthatha isinye sezindaba ezishayayo (ukuphulwa kwedatha okukhulu, isikhathi se-Apple-vs-FBI) ukuze amasondo abasebenzisi abasha angenele.
- Izici zeqembu ziyisiseko uma ziqhathaniswa namashaneli amakhulu omphakathi we-Telegram. I-Signal engafuni ukukhongolose lelo setweni — bafuna ingxoxo yeqembu langasese, hhayi amapulatifomu okusabalalisa.
- Usesho lwegama lomsebenzisi lungokuqonda okuncike-kuncike — awukwazi ukucinga "thola abasebenzisi abagama uAlice", kuphela ufune igama elithile lomsebenzisi umuntu akunikile lona.
Ubani okufanele asebenzise i-Signal
Impendulo enengqondo: wonke umuntu oshintshana nomyalezo noma uwuphi wombhalo nomunye umuntu — ngisho nabajwayelekile. Izindleko zokushintshela ku-Signal kumngane osevele umthumelela imiyalezo cishe yilutho, futhi uthola ukubethela okusuka ekuqaleni kuya ekupheleni, ayikho izikhangiso, nesithunywa esixhaswa ukukusebenzela kunokuthi sikuthengise.
Indaba inomongo kakhulu kula:
- Abezindaba abavikela imithombo
- Omashulolwazi nabakhasimende abadinga ukuxhumana okukhethekile
- Abavikeleli, abantu abachasene, nabasebenzi bamalungelo abantu kunoma yiluphi indawo
- Noma ngubani oxoxa ngezempilo, ezimali, ubudlelwano, izingxabano zomndeni — noma yini ongafuni idatha elivuzayo lesikhathi esizayo ukuba nayo
- Izinkampani ezixoxa ngezimfihlo zentengiso, i-M&A, izinqumo zokuqasha — noma yini eyingalimaza ibhizinisi lakho uma ithathwa
Kuleyo misebenzi, i-Signal iyisisekelo esincane. Uma ungeku-Signal, wenza izingxoxo zakho zizwakale ngendawo yokugadayo yenkampani exhaswa ngokumaketha.
Uxhaso nokuqhubeka
I-Signal iqhutshwa yi-Signal Foundation, inhlangano engahloseli inzuzo yase-US 501(c)(3). Uxhaso luvela ku:
- Iminikelo yomuntu ngamunye nge-signal.org/donate (umugqa omkhulu kakhulu wemali engenayo)
- Ukunikelwa okwawu-$50M kusuka kumsunguli we-WhatsApp uBrian Acton ngo-2018
- Izibonelelo ezincane ezivela ezisekelweni ezigxile kubumfihlo
- Isipele sesisekelo sefoundation sango-2018
Izindleko zokusebenza ziyiqiniso — uCEO we-Signal uMeredith Whittaker waphawula obala ukuthi isisekelweni sidinga cishe u-$50M ngonyaka ukusekela izinto ezikhona. Uma usebenzisa i-Signal njalo, ukunikela ngqo kuxhasa abantu ababhala ikhodi. Ayikho izikhangiso noma ukudayisela okudingekayo; ukunikela kuyimodeli yonke yemali engenayo.
Umugqa wokugcina
I-Signal yilokho okubonakala kokuthumela imiyalezo kwangasese uma kwakhelwe yinjiniyela yobumfihlo, kuhlolwa obala, futhi kuqhutshwa yinhlangano engadingi ukukuthengisa. Ukubethela kusezingeni eliphansi kakhulu, isigxebo semininingo siphantse singabi lutho, futhi imodeli yoxhaso isho ukuthi alikho iqhinga lokushintsha lokho nokube nini. Idinga lenombolo yefoni liyiqiniso lokunquma kodwa elingcine kakhulu ngokungezwa kwamagama abasebenzisi ngo-2024.
Uma uthatha ubumfihlo mathupha futhi ungadinakali ukufaka imizuzwana engama-30, i-Signal kufanele ibe yisithunywa sakho esizenzakalelayo. Uma oxhumana nawe bengakabi kuyo okwamanje, bathumelele isimemo — umphumela wenethiwekhi yinto kuphela emile phakathi kwe-Signal nobunjalo bonke, futhi umsebenzisi musha wonke uhambisa isalazi.