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Drop SECP256K1 support #6592

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maxtropets opened this issue Oct 28, 2024 · 4 comments · Fixed by #6602

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maxtropets commented Oct 28, 2024

#6588 (comment)

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maxtropets commented Oct 28, 2024 •

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@achamayou says
#6588 (comment)

Let's prove, drop support and close if that's the case, investigate otherwise

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achamayou commented Oct 29, 2024

Not present in https://github.com/microsoft/SymCrypt/blob/907622c6658877014ea3fea336e2efa407864fdc/lib/ec_internal_curves.c#L583
nor in https://github.com/microsoft/SymCrypt/blob/907622c6658877014ea3fea336e2efa407864fdc/unittest/lib/openssl_implementations.cpp#L1108

Probably good to ask to confirm, but seems very likely it's not supported.

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achamayou commented Oct 29, 2024

It's definitely not in the list of supported curves: https://github.com/microsoft/SymCrypt/blob/main/inc/symcrypt.h#L7463

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achamayou commented Oct 29, 2024

I think this ticket turns into "Drop SECP256K1 support in CCF", since:

we don't have an approved crypto provider that implements it on Azure Linux
we are no aware of any usage

maxtropets changed the title ~~Support SECP256K1 on Azure Linux~~ Drop SECP256K1 support

maxtropets mentioned this issue

Remove secp256k as unsupported by symcrypt on Mariner #6602

Merged

maxtropets self-assigned this

achamayou closed this as completed in #6602

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