Deterministic ECDSA - RFC6979 #441
Comments
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Yeah, it'd be a useful feature to support. If it can wait a week or two, I can find some time to work on it... the RFC is quite hard to follow but at the core it's only really a couple of chained HMAC operations, if memory serves, and there are a load of test vectors. |
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No problem, it can wait a month (or two). |
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OK, pretty sure I can find the time to do this, then 😄 |
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Hi, |
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Hi @danzadok! Sorry, some stuff came up at the end of last year and I wasn't able to work on it. I've read through all the details in the RFC and I'm working on it now :) |
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Thanks a lot.
Please let me know when done.
I will be your beta :)
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…On Mon, Dec 31, 2018 at 6:12 PM Russ Williams ***@***.***> wrote:
Hi @danzadok <https://github.com/danzadok>!
Sorry, some stuff came up at the end of last year and I wasn't able to
work on it. I've read through all the details in the RFC and I'm working on
it now :)
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:) Danny Zadok
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Hi
Any news about that?
Danny
…On Mon, Dec 31, 2018, 10:17 PM Danny Zadok ***@***.*** wrote:
Thanks a lot.
Please let me know when done.
I will be your beta :)
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On Mon, Dec 31, 2018 at 6:12 PM Russ Williams ***@***.***>
wrote:
> Hi @danzadok <https://github.com/danzadok>!
>
> Sorry, some stuff came up at the end of last year and I wasn't able to
> work on it. I've read through all the details in the RFC and I'm working on
> it now :)
>
> —
> You are receiving this because you were mentioned.
> Reply to this email directly, view it on GitHub
> <#441 (comment)>,
> or mute the thread
> <https://github.com/notifications/unsubscribe-auth/AYXLb7kXW_M7UEp2v8QdPjUY3acZFF6wks5u-jdegaJpZM4XFwAK>
> .
>
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:) Danny Zadok
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Hi |
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Sorry, I've been really short on time recently :( It's still not working correctly, I need to dig into the results of the hash chain and check that it's coming up with the correct results/keys. |
Deterministic signatures should be added in future versions of Libtomcrypt, which is used by CryptX. Ticket link: libtom/libtomcrypt#441
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Hey, any news? Is anyone working on this? |
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This seems stalled? |
It would be nice to support deterministic ecc signatures - see https://tools.ietf.org/html/rfc6979
It is related only to
ecc_sign_hash_exas the verification works as usual.It can be done without any API change, simply when
prngparametr ofecc_sign_hash_exis passedNULLthen we will not throw an error but create the deterministic signature as described in RFC6979.Any takers?
Cc: @rmw42 - what do you think? IMO you have pretty impressive ECDSA-related traction during last few weeks 😄
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