I'm not sure what you mean by key dimensions. Usually when someone says
n-bit elliptic curve key, they mean the group order of the curve is n bits
long. In this case it's 233 bits (hence the name "sect233k1"). You can get
it from the key like this:
int keylength = privkey.GetGroupParameters().GetGroupOrder().BitCount();
On Mon, Oct 14, 2002 at 09:33:05AM +0200, Francesco Cammeresi wrote:
> Hello everybody.
>
> Just a little dummy question:
>
> I generated a keypair in this way:
>
> AutoSeededRandomPool rng;
>
> ECPrivateKey<EC2N> privkey(rng, ASN1::sect233k1());
> HexEncoder privkeysink(new FileSink("/root/Desktop/privkey.txt"));
> privkey.DEREncode(privkeysink);
> privkeysink.MessageEnd();
>
>
> ECPublicKey<EC2N> pubkey(privkey);
>
> HexEncoder pubkeysink(new FileSink("/root/Desktop/pubkey.txt"));
> pubkey.DEREncode(pubkeysink);
> pubkeysink.MessageEnd();
>
>
>
> Now I don't know the dimension (in bit or byte) of my private key (also of my
> public key). How can I get them?
>
> The file privkey.txt is 620 Bytes long and the pubey.txt 534 B. Are these the
> right number I'm searching for? I don't think so.
> Sorry for the stupid question, I tried to do by myself, but I didn't reach
> them :-(
>
> Francesco
