I've seen this question a few times already. Per the interwebs:
AES-GCM (Galois Counter Mode) internally uses AES in CTR mode that can provide confidentiality and at most Ind-CPA security. AES-GCM also uses GHASH to provide integrity and authentication like any secure MAC.
In the end, AES-GCM constitutes an authenticated encryption (AE) mode with Associated Data ( AEAD).
In other words no authentication algorithm is required as AES-GCM already uses one. Just don't check the box (or set it to null) and you'll be able move forward.
AES-GCM (Galois Counter Mode) internally uses AES in CTR mode that can provide confidentiality and at most Ind-CPA security. AES-GCM also uses GHASH to provide integrity and authentication like any secure MAC.
In the end, AES-GCM constitutes an authenticated encryption (AE) mode with Associated Data ( AEAD).
In other words no authentication algorithm is required as AES-GCM already uses one. Just don't check the box (or set it to null) and you'll be able move forward.
Statistics: Posted by gabacho4 — Fri Dec 29, 2023 3:44 pm