Briar fasaha ce ta sadarwa ta software mai budaddiyar tushe, wacce aka yi niyya don samar da amintattun hanyoyin sadarwa na tsara-zuwa-tsara ba tare da sabar cibiyar sadarwa ba da karancin dogaro ga ababen more rayuwa na waje. Ana yin haɗin kai ta hanyar bluetooth, WiFi, ko kan intanit ta Tor kuma duk sadarwa ta sirri rufaffiyar ƙarshen-zuwa-ƙarshe ce. Ana adana abubuwan da suka dace a cikin rufaffen tsari akan na'urori masu shiga. Tsare-tsare na dogon lokaci don aikin sun haɗa da "rubutun ra'ayin kanka a yanar gizo, taswirar rikici da kuma gyara takaddun haɗin gwiwa." Masu sauraro na farko da aka yi niyya don Briar sun haɗa da "masu fafutuka, 'yan jarida da ƙungiyoyin jama'a" tare da shirye-shiryen sanya tsarin "mai sauƙi don taimakawa kowa ya kiyaye bayanansa." Kamar yadda ikon yin aiki a cikin rashin kayan aikin intanet na iya sa aikin ya zama mai daraja ga bala'i da kungiyoyin agaji, masu haɓaka suna aiki tare da Buɗaɗɗen Ƙaddamar da Bil'adama da Taarifa.[3] A ƙarshe, masu haɓakawa suna da niyyar ƙirƙirar tsarin “mai sauƙin amfani kamar WhatsApp, mai aminci kamar PGP, kuma yana ci gaba da aiki idan wani ya fasa Intanet.” An buga lambar tushen Briar azaman software kyauta kuma ana rarraba ta ƙarƙashin sharuɗɗan lasisin GPLv3. Cure53 ne ya tantance shi kuma ya yi magana sosai a cikin rahoton da aka bayar 20 Maris 2017, kuma an ba da shawarar a ba shi bincike na biyu bayan an kammala ci gaba.