Ngicela ninginikeze isifinyezo sokuthi i-AES-GCM iyini nokuthi yini okufakwayo nokukhishwayo.
Context:Ku-cryptography, i-Galois / Counter Mode (GCM) iyindlela yokusebenza ye-symmetric-key cryptographic block ciphers eyamukelwa kabanzi ngokusebenza kwayo. Izinga lokudluliswa kwe-GCM kweziteshi zokuxhumana ezisezingeni eliphakeme, ezisheshayo zingatholakala ngezinsizakusebenza zehadiwe ezingabizi.  I-algorithm ye-GCM ihlinzeka kokubili ubuqiniso (ubuqotho) nedatha kanye nokugcinwa kwemfihlo futhi ingeyesigaba sokubethela okuqinisekisiwe kwedatha ehambisanayo (AEAD). Lokhu kusho ukuthi njengokungeniswa kuthatha ukhiye K, umbhalo ocacile P, kanye nedatha ehambisanayo AD; bese ifaka umbhalo ocacile usebenzisa ukhiye ukukhiqiza umbhalo obhaliwe C, bese ibhala ithegi yokuqinisekisa T kusuka kumbhalo obhaliwe nedatha ehambisanayo (ehlala ingafihliwe). Umamukeli onolwazi lwe-K, lapho ethola i-AD, i-C ne-T, angakwazi ukuchaza umbhalo obethelwe ukuze athole umbhalo ocacile we-P futhi angabheka umaki we-T ukuze aqiniseke ukuthi umbhalo obethelwe noma idatha ehlobene nawo ayonakalisiwe.
I-AES-GCM iyindlela yokusebenza ye-symmetric-key cryptography. Lisho iGalois/Counter Mode futhi liyi-block cipher eqinisekisiwe enikeza ubuqotho nobuqiniso ngaphezu kwemfihlo. Yamukela njengokungeniswa ukhiye K, i-plaintest P nedatha ehambisanayo AD, futhi ikhiqiza njengokukhishwa kwe-ciphertext C kanye nomaki wokuqinisekisa T.