Signal Technology Foundation, yomwe imapanga njira yolumikizirana yotetezeka ya Signal, yayambiranso kusindikiza ma code a magawo a seva a mesenjala. Khodi ya polojekitiyi idatsegulidwa koyambirira pansi pa layisensi ya AGPLv3, koma kusindikizidwa kwa zosintha pamalo osungira anthu kunayimitsidwa popanda kufotokozera pa Epulo 22 chaka chatha. Zosintha zosungirako zidayima pambuyo pa kulengeza cholinga chophatikizira njira yolipira mu Signal.
Posachedwapa, tinayamba kuyesa njira yolipira yomwe imamangidwa mu Signal, pogwiritsa ntchito cryptocurrency yathu ya MobileCoin (MOB), yopangidwa ndi Moxie Marlinspike, wolemba Signal protocol. Pa nthawi yomweyi, kusintha kwa zigawo za seva zomwe zinasonkhanitsidwa chaka chonse zinasindikizidwa m'malo osungiramo zinthu, kuphatikizapo zomwe zinaphatikizapo kukhazikitsidwa kwa njira yolipira.
MobileCoin cryptocurrency idapangidwa kuti izipanga njira zolipirira mafoni zomwe zimatsimikizira chinsinsi cha ogwiritsa ntchito. Deta ya ogwiritsa ntchito imakhalabe m'manja mwawo okha ndipo oyambitsa ma Signal kapena oyang'anira zinthu zachitukuko alibe mwayi wopeza ndalama, deta ya ogwiritsa ntchito komanso mbiri yakale. Maukonde olipira alibe gawo limodzi lowongolera ndipo amachokera ku lingaliro la umwini wogawana, zomwe zimayambira ndikuti ndalama zonse zapaintaneti zimapangidwa ngati gulu la magawo omwe angasinthidwe. Ndalama zonse pamaneti ndizokhazikika pa 250 miliyoni MOB.
MobileCoin imachokera ku blockchain yomwe imasunga mbiri ya malipiro onse opambana. Kuti mutsimikizire umwini wandalama, muyenera kukhala ndi makiyi awiri - kiyi yosinthira ndalama ndi kiyi kuti muwone momwe ndalama zilili. Kwa ogwiritsa ntchito ambiri, makiyi awa amatha kutengedwa kuchokera ku kiyi wamba. Kuti alandire malipiro, wogwiritsa ntchitoyo ayenera kupatsa wotumiza makiyi awiri agulu ogwirizana ndi makiyi omwe alipo omwe amagwiritsidwa ntchito potumiza ndikutsimikizira umwini wandalamazo. Zogulitsa zimapangidwa pakompyuta kapena foni yam'manja ya wogwiritsa ntchito, pambuyo pake amasamutsidwa kupita ku imodzi mwama node omwe ali ndi udindo wotsimikizira kuti agwiritsidwe ntchito pamalo akutali. Otsimikizira kutsimikizira ndikugawana ndi kugawana zambiri za ndikugawana ndi mfundo zina kuchokera MobileCoin maukonde kudzera unyolo (mnzake kwa anzawo).
Deta akhoza anasamutsa kuti mfundo kuti cryptographically kutsimikiziridwa ntchito unmodified MobileCoin kachidindo mu enclave. Aliyense enclave akutali replicates makina boma kuti anawonjezera wotuluka chomveka kwa blockchain ntchito MobileCoin Consensus Protocol kutsimikizira malipiro. Ma Node amathanso kutenga gawo la ovomerezeka athunthu, omwe amapanganso ndikulandila kopi yapagulu ya blockchain yamakompyuta pamaneti operekera zinthu. Chotsatira cha blockchain sichikhala ndi chidziwitso chomwe chimalola kuzindikira wogwiritsa ntchito popanda kudziwa makiyi ake. Blockchain ili ndi zozindikiritsa zokha zomwe zimawerengedwa kutengera makiyi a wogwiritsa ntchito, zobisika zandalama ndi metadata yowongolera kukhulupirika.
Kuonetsetsa umphumphu ndi kuteteza ku chiwonongeko cha deta pambuyo pake, mtengo wa Merkle Tree umagwiritsidwa ntchito, momwe nthambi iliyonse imatsimikizira nthambi zonse zomwe zili pansi ndi node kudzera mu hashing (mtengo) wamtengo. Pokhala ndi hashi yomaliza, wogwiritsa ntchito akhoza kutsimikizira kulondola kwa mbiri yonse ya ntchito, komanso kulondola kwa madera akale a database (chitsimikizo cha mizu ya chikhalidwe chatsopano cha database chikuwerengedwa poganizira za zakale. ).
Kuphatikiza pa ovomerezeka, maukonde amakhalanso ndi ma Watcher node, omwe amatsimikizira siginecha ya digito yomwe ovomerezeka amalumikiza ku chipika chilichonse mu blockchain. Ma node owonera nthawi zonse amayang'anira kukhulupirika kwa netiweki yokhazikitsidwa, kusunga makope awo a blockchain, ndikupereka ma API ogwiritsira ntchito chikwama ndi makasitomala osinthanitsa. Aliyense atha kuyendetsa zovomerezeka ndikuwonera node; Pachifukwa ichi, ntchito zofananira, zithunzi za Intel SGX ndi mobilecoind daemon zimagawidwa.
Mlengi wa Signal anafotokoza lingaliro la kuphatikiza cryptocurrency mu mthenga ndi chikhumbo chofuna kupatsa ogwiritsa ntchito njira yosavuta yolipira yomwe imateteza chinsinsi, mofanana ndi momwe Mthenga wa Signal amatsimikizira chitetezo cha mauthenga. Bruce Schneier, katswiri wodziwika bwino pankhani ya cryptography ndi chitetezo cha makompyuta, adadzudzula zochita za opanga ma Signal. Schneier amakhulupirira kuti kuyika mazira anu onse mudengu limodzi si njira yabwino yothetsera vutoli, ndipo mfundo sikuti imatsogolera kuphulika ndi zovuta za pulogalamuyo, komanso ngakhale kuti kugwiritsa ntchito blockchain ndikokayikitsa, osati kuti ndikuyesera. kumangiriza Signal ku cryptocurrency imodzi.
Vuto lalikulu, malinga ndi Schneier, ndikuti kuwonjezera njira yolipirira ku pulogalamu yobisidwa yomaliza mpaka kumapeto kumapanga ziwopsezo zina zolumikizidwa ndi chiwongola dzanja chowonjezeka kuchokera ku mabungwe osiyanasiyana azidziwitso ndi oyang'anira boma. Kulumikizana kotetezedwa ndi zochitika zotetezedwa zitha kukhazikitsidwa mosavuta ngati ntchito zosiyana. Mapulogalamu omwe amagwiritsira ntchito kubisa kolimba kumapeto kwa mapeto akuwukiridwa kale, ndipo ndizowopsa kuonjezera chiwerengero cha kutsutsa - pamene ntchitoyo ikuphatikizidwa, zotsatira za dongosolo la malipiro zidzaphatikizapo kugwira ntchito kwa kumapeto mpaka kumapeto. . Chiwalo chimodzi chikafa, dongosolo lonselo limafa.
Source: opennet.ru