On Fri, Jul 27, 2001 at 07:27:59PM +0100, Dr S N Henson wrote:
> What field does the Certicom ECC root use, is it available anywhere?
There's the NIST specifications on ECC (ECDSA) and there's also a
Certicom group called SECG. They specify fields. And curves. And
basepoints. That's a good idea, but I think there's still a lot of
room ... Basically there is so much parameters to choose that the
standards are actually just very few fields/curves.
It is perfectly easy for OpenSSL to use our own fields and curves.
> There's currenttly no ECDSA support in OpenSSL but some EC operations
> are in the latest development version, however they only work on prime
> fields not 2^m fields. 2^m fields tend to have more patents associated
> with them.
We can easily use p^m fields with p>2. Then we'd have something unique
in OpenSSL ! We'd also have something rather incompatible unfortunately,
> It isn't currenly possible to just plug in a new public key crypto
> algorithm into OpenSSL and it would in any case need ASN1 support with
> the EC public key format. This would require quite a bit of modification
> to OpenSSLs core code.
This is what I was trying to do.
I found the ASN1 writing was getting close (reading not yet so close,
but I'm going to get there .....
but I loose time because I have to keep in sync with you, I first had
a patch for OpenSSL 0.9.6 and later for 0.9.6a and it is some work to
keep in sync.
David.
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