Re: [CFRG] misuse-resistant AEAD and HPKE
Dan Harkins <dharkins@lounge.org> Tue, 03 November 2020 07:33 UTC
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Date: Mon, 02 Nov 2020 23:33:46 -0800
From: Dan Harkins <dharkins@lounge.org>
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To: "Blumenthal, Uri - 0553 - MITLL" <uri@ll.mit.edu>
Cc: CFRG <cfrg@irtf.org>
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Subject: Re: [CFRG] misuse-resistant AEAD and HPKE
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Hi Uri, On 11/2/20 5:00 PM, Blumenthal, Uri - 0553 - MITLL wrote: > Would you consider some kind of merge with AES-GCM-SIV? To avoid the > need for double-wide key (which, IMHO, is a nuisance)? Ultimately it's the will of the group. If there's consensus for AES-GCM-SIV then of course. Also if there's consensus for "don't bother with MRAE" then it's all moot. I prefer AES-SIV over AES-GCM-SIV but for reasons that might not apply to HPKE. Given that the Expand() can generate any length output, including double-wide keys, I don't see the nuisance: just set Nk accordingly, there's actually an existing column for that in table 5 so it's not like this is onerous. regards, Dan. -- "The object of life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." -- Marcus Aurelius
- [CFRG] misuse-resistant AEAD and HPKE Dan Harkins
- Re: [CFRG] misuse-resistant AEAD and HPKE Richard Barnes
- Re: [CFRG] misuse-resistant AEAD and HPKE Dan Harkins
- Re: [CFRG] misuse-resistant AEAD and HPKE Blumenthal, Uri - 0553 - MITLL
- Re: [CFRG] misuse-resistant AEAD and HPKE Dan Harkins