{"id":37277,"date":"2019-10-31T22:16:45","date_gmt":"2019-10-31T19:16:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/opendrop-otkrytaya-realizatsii-tehnologii-apple-airdrop\/"},"modified":"2019-10-31T22:16:45","modified_gmt":"2019-10-31T19:16:45","slug":"opendrop-otkrytaya-realizatsii-tehnologii-apple-airdrop","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/opendrop-otkrytaya-realizatsii-tehnologii-apple-airdrop","title":{"rendered":"OpenDrop \u2014 implementazione aperta della tecnologia Apple AirDrop","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Progetto Collegamento Wireless Aperto<\/a><\/noindex>, che si occupa dell'analisi dei protocolli wireless proprietari di Apple, ha presentato<\/a><\/noindex> alla conferenza USENIX 2019 relazione<\/a><\/noindex> con un'analisi delle vulnerabilit\u00e0 nei protocolli wireless di Apple (sono state trovate possibilit\u00e0 di attacchi MiTM per modificare i file trasmessi tra i dispositivi, attacchi DoS per bloccare l'interazione dei dispositivi e causare il blocco dei dispositivi, nonch\u00e9 l'uso di AirDrop per identificare e tracciare gli utenti). Durante lo studio condotto sono state preparate implementazioni open source del protocollo AWDL (Apple Wireless Direct Link) e della tecnologia AirDrop<\/a><\/noindex>, i cui dettagli sono stati ottenuti tramite reverse engineering.<\/p>\n

L'implementazione di AWDL \u00e8 scritta in linguaggio C ed \u00e8 stata pubblicata come applicazione Linux owl<\/a><\/noindex> (Open Wireless Link), che utilizza l'API Netlink per eseguire operazioni specifiche per Wi-Fi, come il cambio di canale. L'integrazione con lo stack di rete avviene tramite un'interfaccia di rete virtuale, che consente alle applicazioni che supportano IPv6 di utilizzare il protocollo AWDL senza modificare il codice. Il funzionamento \u00e8 possibile su schede di rete che supportano la modalit\u00e0 di monitoraggio attivo, che consente l'inserimento dei pacchetti (ad esempio, supportata in Atheros AR9280).<\/p>\n

Il protocollo AWDL \u00e8 alla base delle tecnologie wireless di Apple, utilizzate per organizzare l'interazione diretta tra i dispositivi senza necessit\u00e0 di configurazione e accoppiamento preventivi. Sul protocollo AWDL opera anche il servizio AirDrop, che consente lo scambio di file tramite Wi-Fi e Bluetooth. I componenti di AirDrop preparati dai ricercatori sono scritti in linguaggio Python e disponibili nell'ambito del progetto OpenDrop<\/a><\/noindex>. Il codice di owl e OpenDrop \u00e8 stato pubblicato con licenza GPLv3.<\/p>\n

OpenDrop fornisce un'interfaccia a riga di comando che consente lo scambio di file tra dispositivi tramite Wi-Fi. A livello di protocollo, l'implementazione \u00e8 completamente compatibile con i dispositivi Apple, permettendo di organizzare interazioni tra sistemi basati su Linux e dispositivi iOS e macOS. \u00c8 consentito l'invio di file solo ai dispositivi Apple in modalit\u00e0 di scoperta illimitata da parte degli altri utenti, poich\u00e9 la scoperta selettiva dei dispositivi e l'invio tramite rubrica richiedono la firma digitale di Apple. <\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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