




#include "internal/deprecated.h"

#include <openssl/opensslconf.h>

#include <stdio.h>
#include <time.h>
#include "internal/cryptlib.h"
#include <openssl/bn.h>
#include <openssl/rsa.h>

RSA *RSA_generate_key(int bits, unsigned long e_value,
                      void (*callback) (int, int, void *), void *cb_arg)
{
    int i;
    BN_GENCB *cb = BN_GENCB_new();
    RSA *rsa = RSA_new();
    BIGNUM *e = BN_new();

    if (cb == NULL || rsa == NULL || e == NULL)
        goto err;

    
    for (i = 0; i < (int)sizeof(unsigned long) * 8; i++) {
        if (e_value & (1UL << i))
            if (BN_set_bit(e, i) == 0)
                goto err;
    }

    BN_GENCB_set_old(cb, callback, cb_arg);

    if (RSA_generate_key_ex(rsa, bits, e, cb)) {
        BN_free(e);
        BN_GENCB_free(cb);
        return rsa;
    }
 err:
    BN_free(e);
    RSA_free(rsa);
    BN_GENCB_free(cb);
    return 0;
}
