On Tuesday, June 5, 2012 9:54:00 AM UTC-4, Krivak wrote:
>
>
> Hello all,
>
> I have several questions regards dealing with certificates in crypto++.
>
> I have just wrote an Client-Server application which using crypto++ for
> encrypted data exchange. The first version is working just with compiled
> in:
> Integer
> p_Modus("0xe75bdc24b294db3de7485b071b12a2119d885e4a9d....");
> Integer sg_SubgroupGenerator("0x3");
> then Diffie-Hellman class is Initialize:
> m_dhMy.AccessGroupParameters().Initialize(p_Modus,
> sg_SubgroupGenerator);
> and private and public keys are generated:
> m_dhMy.GenerateKeyPair(m_dhMyRng, m_dhMyPrivKey, m_dhMyPubKey);
>
> Now I would like to replace this part of code with a mechanism which would
> obtain m_dhMyPrivKey, m_dhMyPubKey from certificates. So my questions
> are:
>
> 1) Is it possible generate certificates with Diffie-Hellman keys with
> crypto++ functions? Or is it necessary to generate them with another tool
> e.g. openssl?
>
> 2) How to obtain keys from certificates?
> I have tried to use example at: http://www.cryptopp.com/wiki/X.509
> but I haven't succeeded to obtain key in binary format from used data
> structures 'CryptoPP::BufferedTransformation & keyout' or 'ByteQueue
> googleq, thawteq, googletbs, thawtespki'.
>
> Please, could anyone be so kind and give me a hint? The best would an
> example. Thanks a lot in advance.
>
>
Courtesy of Geoff Beier: http://www.cryptopp.com/wiki/X.509.
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