ʻO ka hāʻawi ʻana i ke kī nui (QKD) kahi ala kamaʻilio paʻa e hoʻokō i kahi protocol cryptographic e pili ana i nā ʻāpana o ka quantum mechanics. He mea hiki i nā ʻaoʻao ʻelua ke hana i kahi kī huna huna i ʻike ʻia iā lākou wale nō, a laila hiki ke hoʻohana ʻia e hoʻopili a wehe i nā memo. Ua kapa pinepine ʻia ʻo ia ka quantum cryptographic, ʻoiai ʻo ia ka laʻana kaulana loa o kahi hana cryptographic quantum.
ʻOiai e kūʻai ʻia ana no nā makahiki he nui, ke hoʻomau nei ka holomua i ka hana ʻana i kēia mau ʻōnaehana i ʻoi aku ka paʻakikī, ʻoi aku ka liʻiliʻi, a hiki ke hana ma nā mamao lōʻihi. He mea koʻikoʻi kēia mau mea no ka lawe ʻana i kēia mau ʻenehana e nā aupuni a me nā ʻoihana. ʻO ka hoʻohui ʻana o kēia mau ʻōnaehana QKD i loko o ka ʻoihana pūnaewele e kū nei ka paʻakikī o kēia manawa a me nā hui multidisciplinary o nā mea hana kelepona, nā mea hoʻolako koʻikoʻi koʻikoʻi, nā mea hoʻohana pūnaewele, nā mea hoʻolako lako QKD, nā ʻoihana palekana digital a me nā ʻepekema, ke hana nei i kēia.
Hāʻawi ʻo QKD i kahi ala e puʻunaue a kaʻana like i nā kī huna e pono ai no nā protocol cryptographic. ʻO ka mea nui ma ʻaneʻi, ʻo ia ka mālama pono ʻana iā lākou, ʻo ia hoʻi ma waena o nā ʻaoʻao kamaʻilio. No ka hana ʻana i kēia, hilinaʻi mākou i ka mea i ʻike mua ʻia ʻo ka pilikia o nā ʻōnaehana quantum; inā ʻoe e "nānā" iā lākou, a hoʻopilikia paha iā lākou ma kekahi ʻano, "haʻi" ʻoe i nā ʻano quantum.