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Re: [kitten] Question about AES mode in Kerberos

Jeffrey Altman <jaltman@secure-endpoints.com> Tue, 03 January 2023 20:03 UTC

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To: "Olga Kornievskaia (aglo@umich.edu)" <aglo@umich.edu>
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Subject: Re: [kitten] Question about AES mode in Kerberos
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On 1/3/2023 2:51 PM, Olga Kornievskaia (aglo@umich.edu) wrote:
>
> Thank you for the clarification. Now I understand the GCM's unspoken
> role in RFC 3961. But I still feel wanting some sort of an explanation
> why CTS mode was chosen over GCM (by the working group as a whole).

Simple answer.   The initial draft of what would become RFC3962 was 
published five years before Galois/Counter Mode (GCM) was invented.

Jeffrey Altman

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