On 18/11/14 17:04, Indtiny S wrote:
> Hi,
> Thanks for the reply .
>
> Now below code is working fine. But is there any straight way get the
> public key also?
>
> void handleErrors(void){
>
> printf("\n Error ");
> }
>
>
> void myPrint( BIGNUM * x, char * t ) {
> char * s = BN_bn2dec( x ) ;
> printf("%s%s", s, t ) ;
> // OPENSSL_free(s) ;
> free(s) ;
> }
>
> int main()
> {
>
> EC_KEY *key;
>
> if(NULL == (key = EC_KEY_new_by_curve_name(NID_sect113r1)))
> handleErrors();
>
> if(1 != EC_KEY_generate_key(key)) handleErrors();
>
> BIGNUM *prv = EC_KEY_get0_private_key(key);
> BIGNUM *pub = EC_KEY_get0_public_key(key); //
>
> */* Is this the right way to get the public key or do I need to use
> the Generator to get the public key*/ *
Yes, you can call EC_KEY_get0_public_key to get the public key, but this
function returns an EC_POINT not a BIGNUM.
Matt
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