Hello,
>
> Someone of you can tell me how can I extract public and private keys from RSA
> structure returned by the function "RSA_generate_key"?
>
> I'm using openssl in my c++ simulation work and I must exchange public keys
> between simulated server and client, I cannot exchange the whole RSA
> structure!?
#include <stdio.h>
#include <openssl/bn.h>
#include <openssl/rsa.h>
int main()
{
RSA *r;
r = RSA_generate_key(32,656537,NULL,NULL);
if( r==NULL ) {
printf("Key failed");
exit(1);
} else {
printf("public modulus (n):\n");
printf(" %s\n",BN_bn2hex(r->n));
printf("public exponent (e):\n");
printf(" %s\n",BN_bn2hex(r->e));
printf("private exponent (d):\n");
printf(" %s\n",BN_bn2hex(r->d));
printf("secret prime factor (p):\n");
printf(" %s\n",BN_bn2hex(r->p));
printf("secret prime factor (q):\n");
printf(" %s\n",BN_bn2hex(r->q));
printf("dmp1 [ d mod (p-1) ]:\n");
printf(" %s\n",BN_bn2hex(r->dmp1));
printf("dmq1 [ d mod (q-1) ]:\n");
printf(" %s\n",BN_bn2hex(r->dmq1));
printf("iqmp [ q^-1 mod p ]:\n");
printf(" %s\n",BN_bn2hex(r->iqmp));
}
printf("RSA SIZE: %d\n", RSA_size(r));
return(0);
}
Best regards,
--
Marek Marcola <[EMAIL PROTECTED]>
______________________________________________________________________
OpenSSL Project http://www.openssl.org
User Support Mailing List openssl-users@openssl.org
Automated List Manager [EMAIL PROTECTED]
