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Replace the current key exchange with EC-HMQV #2

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wyatt-howe opened this issue Dec 8, 2020 · 1 comment
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Replace the current key exchange with EC-HMQV #2

wyatt-howe opened this issue Dec 8, 2020 · 1 comment
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enhancement New feature or request

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@wyatt-howe
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wyatt-howe commented Dec 8, 2020 •
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The paper only specifies that the key exchange has to happen inside a prime order (elliptic curve) group, but with the way they define it, I'm not sure this is possible with Ristretto.

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@wyatt-howe wyatt-howe added the enhancement New feature or request label Dec 8, 2020
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Sc00bz commented Jul 16, 2021

HMQV is patented until February 2026. If anything this should use Noise-KN and drop the encryption part (and do client_identity_private_key = pwKdf(...)). Also the encryption part is currently broken because it doesn't have "random key robustness" (see #5). The encryption part was added to OPAQUE so that HMQV can have an advantage vs 3DH and get people to use or vet IBM's patented AKE.

@wyatt-howe wyatt-howe mentioned this issue Nov 23, 2022
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