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For questions about the cryptographic protocols which form the basis of IPsec, which is one of the common security schemes used on the throughout. For general questions about IPsec, consider if your question fits our sister sites Super User and/or Security Stack Exchange better.

3 votes
1 answer
2k views

Why can't AES-GCM be used in IKEv1 phase 1?

I was configuring a VPN on a firewall (fortigate) and realized that I could use AES-GCM for encryption in the IKEv1 phase 2 but not in the phase 1 and I was wondering why knowing that in IKEv2 we coul …
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