I-AEAD yengeza ubuqotho, hhayi ukungena noma umzila osebenzayo

Ukubethela okuqinisekisiwe kubuyisela izinto ezimbili ngasikhathi sinye: umbhalo obethelwe ofihla okuqukethwe, kanye nomaka ovumela umamukeli ukuthola ukushintshwa. Ngaphambili le misebenzi yayihlanganiswa ngezicucu ezihlukene, futhi ukuhlanganiswa okubi kwakudala amaphutha acashile. Izakhiwo zesimanje zichaza ukuhlanganiswa kanye nezimo okusebenza ngaphansi kwazo. Igama elithi kuqinisekisiwe lapha libhekisa kumaka, hhayi kumuntu.

Zombili iziqinisekiso zihlanganisa iphakethe elivikelwe kuphela, hhayi noma yini ngaphandle kwalo.

Iziqinisekiso ezimbili esakhiweni esisodwa

Ukubethela kuphendula ukuthi umbonisi angakufunda yini lokhu; ubuqotho buphendula ukuthi kushintshiwe yini. Umhubhe udinga kokubili, ngoba okuqukethwe okushintshiwe kubi kunokungafundeki. I-AEAD ichaza ukuthi kuhlanganiswa kanjani ngaphansi kokhiye oyedwa, kanye nedatha ehlobene eqinisekiswayo kodwa engabethelwanga. Umamukeli wenqaba okokufaka okwehluleka ukuhlolwa.

Idatha ehlobene ihlanganisa izinkambu ezibonakalayo nokuhlolwa. Yiziphi izinkambu ezifakiwe kuncike kuphrothokholi, futhi lokhu akusona isithembiso sokuthi yonke ikheli langaphandle seliyimfihlo: inkambu ingase ibe imbozwe umaka futhi isafundeka kunethiwekhi.

I-Nonce ayiyona imininingwane encane

Okhiye nama-nonce kufanele kuphathwe ngendlela efanele, futhi ukusetshenziswa kabusha kwe-nonce kwehluleka kabi. Ukuphinda i-nonce ngaphansi kokhiye oyedwa kungadalula ubudlelwano phakathi kwemilayezo futhi konakalise ngokuphelele isiqinisekiso sobuqotho. Ngakho-ke iphrothokholi, hhayi uhlelo lokusebenza, inikwe umsebenzi wokukhiqiza nokuhlela ama-nonce.

Lesi yisimo sesiqinisekiso, hhayi iseluleko sokuqalisa. Ama-nonce anganaki awanikeli isici esimenyezelwe.

Ukuvikelwa ekuphindeni kuyisimo esihlukile

Iphakethe elidala elivumelekile lingaphindwa ngenkathi umaka walo uphelele, ngoba umaka ufakazela ubuqiniso hhayi ubusha. Ukuphatha ukuphinda kudinga isimo sako: izinombolo zokulandelana, iwindi kanye nomthetho wokuthi kwamukelwa ini. Leso simo sihlala ekusetshenzisweni kwephrothokholi futhi asihlobene nokukhethwa kwe-cipher. Umhubhe onokubethela okuqinile kodwa ongenakho ukuvikelwa ekuphindeni usamukela ithrafikhi yayizolo.

Izindlela ezimbili zisebenza ndawonye zingeyona eyodwa, futhi enye ingalungile ngenkathi enye ingekho.

Lokho umaka angakutsheli

Ubunikazi bozakwethu busungulwa ngezitifiketi noma okhiye ababiwe ngaphambili, hhayi ngokuthi i-cipher iqinisekisiwe. Umzila, ukuxazululwa kwamagama kanye nenqubomgomo yokuloga yomsebenzisi kungaphandle komngcele we-cryptographic. Ukuxoxisana kwe-algorithm okuphumelelayo kusho kuphela ukuthi iziphetho zombili zavumelana ngesethi eyodwa, lokho kumayelana nokuhambisana, hhayi ikhwalithi yokusetshenziswa nhlangothi zombili.

Kubasebenzisi: khetha ukucushwa kwephrothokholi okunakekelwayo nokwesekwayo. I-AEAD iyisici salokho kucushwa, hhayi isimemo sokwakha ukubethela ngesandla ezungeze umhubhe.

Bhala ukuthi iyiphi isethi okwaxoxiswana ngayo, ukuthi ukuvikelwa ekuphindeni kuyasebenza yini nokuthi ozakwethu babonwa kanjani. Amaqiniso amathathu, iziqinisekiso ezintathu ezihlukene.