[Swan] How to log Encryption Keys?

[Sahil S]

Hi All,

Pardon me asking such a naive question.

I am student and recently started learning IPSEC and Libreswan.  I am
trying to decrypt ISAKMP packet 5 and 6 in a tool like wireshark.

Can anyone help me understand how I can obtain the encryption key used to
encrypt packet 5 and 6 of phase 1?

Thank you in advance.

Regards,
Sahil
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