I think you want a key, not the group.

EC_GROUP_new_by_curve_name => EC_KEY_new_by_curve_name

Billy

On Mon, Mar 2, 2009 at 6:15 PM, neorom <[email protected]> wrote:
> I resolved my previous problem, the error came in the name of the
> variable "key" which has to be named "eckey". So there is a mistake in
> the code in the documentation.
>
> Now my problem is more difficult, because after :
>
> Initialization of the structure :
> EC_KEY    *eckey =  EC_KEY_new()
> link with an elliptic curve :
> eckey = EC_GROUP_new_by_curve_name(NID_secp192k1);
> finally, the creation of this key :
> if (!EC_KEY_generate_key(eckey))
>       {
>        printf("error key generation\n");
>       }
>
> when I execute my code, I get a Semgentation Fault and gdb tell me
> that the problem comes with the  function :  BN_copy()
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x0805fee8 in BN_copy ()
>
> I am working with ubuntu and the libssl0.9.8g-10
>
> Thanks in advance for your help,
>
> Romain Hinfray
>
>
> On Mon, Mar 2, 2009 at 2:57 PM, neorom <[email protected]> wrote:
>> Hello every body,
>>
>> I'm new on this mailing list. I actually have to do a small program
>> which have to generate signature with the ecdsa algorithm and I have
>> never did it before.
>> For this I saw the documentation and the example on the openssl web
>> site (http://www.openssl.org/docs/crypto/ecdsa.html).
>>
>> But on line 8 of this program : key->group = 
>> EC_GROUP_new_by_nid(NID_secp192k1);
>> , I don't understood why the "key" structure isn't initialized before
>> and with struture defines it. Gcc tells me that :  error: ‘key’
>> undeclared.
>>
>> Can you help me please.
>>
>> Thanks in advance
>>
>> Romain Hinfray
>>
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