Marti, thanks for your response.
Erwin
--------------------------------------------------
From: "Martin Boßlet" <martin.boss...@googlemail.com>
Sent: Sunday, July 17, 2011 7:21 AM
To: <openssl-users@openssl.org>
Subject: Re: Converting ECC public key point-compressed and uncompressed
My understanding is that to convert the form of ecc key from compressed
to
uncompressed and from uncompressed to compressed require the knowledge of
the ECC private key.
Is my understanding correct?
You might want to have a look at sections 2.3.3 and 2.3.4 in
http://www.secg.org/download/aid-780/sec1-v2.pdf
No knowledge of the private key is needed.
Regards,
Martin
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______________________________________________________________________
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