[Bitcoin-development] After compressed pubkeys: hybrid pubkeys

Wladimir laanwj at gmail.com
Sun Jun 17 15:16:13 UTC 2012


On Sun, Jun 17, 2012 at 2:04 PM, Pieter Wuille <pieter.wuille at gmail.com>wrote:

> On Sun, Jun 17, 2012 at 01:01:12PM +0200, Mike Hearn wrote:
> > > * 0x04 [32-byte X coord] [32-byte Y coord]: uncompressed format
> > > * 0x06 [32-byte X coord] [32-byte Y coord]: hybrid format for even Y
> coords
> > > * 0x07 [32-byte X coord] [32-byte Y coord]: hybrid format for odd Y
> coords
> >
> > So what's the actual difference in format? Is there any at all, or
> > it's just the first number that's different?
>
> >From what I understand, that is indeed the only difference.
>
>
To prevent surprises in the future, in case OpenSSL decides to add more,
can we disable all other key formats in advance?

Wladimir
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