RSA *RSA_X931_generate_key(int bits, const BIGNUM *e,
void (*callback)(int,int,void *), void *cb_arg)
{
BN_GENCB cb;
int ret;
RSA *rsa = RSA_new();
if (!rsa)
return NULL;
BN_GENCB_set_old(&cb, callback, cb_arg);
ret = RSA_X931_generate_key_ex(rsa, bits, e, &cb);
if (ret)
return rsa;
RSA_free(rsa);
return NULL;
}
int MAIN(int argc, char **argv)
{
BN_GENCB cb;
int ret=1;
int i,num=DEFBITS;
long l;
int use_x931 = 0;
const EVP_CIPHER *enc=NULL;
unsigned long f4=RSA_F4;
char *outfile=NULL;
char *passargout = NULL, *passout = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine=NULL;
#endif
char *inrand=NULL;
BIO *out=NULL;
BIGNUM *bn = BN_new();
RSA *rsa = NULL;
if(!bn) goto err;
apps_startup();
BN_GENCB_set(&cb, genrsa_cb, bio_err);
if (bio_err == NULL)
if ((bio_err=BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
if (!load_config(bio_err, NULL))
goto err;
if ((out=BIO_new(BIO_s_file())) == NULL)
{
BIO_printf(bio_err,"unable to create BIO for output\n");
goto err;
}
argv++;
argc--;
for (;;)
{
if (argc <= 0) break;
if (strcmp(*argv,"-out") == 0)
{
if (--argc < 1) goto bad;
outfile= *(++argv);
}
else if (strcmp(*argv,"-3") == 0)
f4=3;
else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0)
f4=RSA_F4;
else if (strcmp(*argv,"-x931") == 0)
use_x931 = 1;
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv,"-engine") == 0)
{
if (--argc < 1) goto bad;
engine= *(++argv);
}
#endif
else if (strcmp(*argv,"-rand") == 0)
{
if (--argc < 1) goto bad;
inrand= *(++argv);
}
#ifndef OPENSSL_NO_DES
else if (strcmp(*argv,"-des") == 0)
enc=EVP_des_cbc();
else if (strcmp(*argv,"-des3") == 0)
enc=EVP_des_ede3_cbc();
#endif
#ifndef OPENSSL_NO_SEED
else if (strcmp(*argv,"-seed") == 0)
enc=EVP_seed_cbc();
#endif
#ifndef OPENSSL_NO_AES
else if (strcmp(*argv,"-aes128") == 0)
enc=EVP_aes_128_cbc();
else if (strcmp(*argv,"-aes192") == 0)
enc=EVP_aes_192_cbc();
else if (strcmp(*argv,"-aes256") == 0)
enc=EVP_aes_256_cbc();
#endif
#ifndef OPENSSL_NO_CAMELLIA
else if (strcmp(*argv,"-camellia128") == 0)
enc=EVP_camellia_128_cbc();
else if (strcmp(*argv,"-camellia192") == 0)
enc=EVP_camellia_192_cbc();
else if (strcmp(*argv,"-camellia256") == 0)
enc=EVP_camellia_256_cbc();
#endif
else if (strcmp(*argv,"-passout") == 0)
{
if (--argc < 1) goto bad;
passargout= *(++argv);
}
else
break;
argv++;
argc--;
}
if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
{
bad:
BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n");
BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
#ifndef OPENSSL_NO_SEED
BIO_printf(bio_err," -seed\n");
BIO_printf(bio_err," encrypt PEM output with cbc seed\n");
#endif
#ifndef OPENSSL_NO_AES
BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
BIO_printf(bio_err," encrypt PEM output with cbc aes\n");
#endif
#ifndef OPENSSL_NO_CAMELLIA
BIO_printf(bio_err," -camellia128, -camellia192, -camellia256\n");
BIO_printf(bio_err," encrypt PEM output with cbc camellia\n");
#endif
BIO_printf(bio_err," -out file output the key to 'file\n");
BIO_printf(bio_err," -passout arg output file pass phrase source\n");
BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n");
BIO_printf(bio_err," -3 use 3 for the E value\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
#endif
BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
BIO_printf(bio_err," load the file (or the files in the directory) into\n");
BIO_printf(bio_err," the random number generator\n");
goto err;
}
ERR_load_crypto_strings();
if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
BIO_printf(bio_err, "Error getting password\n");
goto err;
}
#ifndef OPENSSL_NO_ENGINE
setup_engine(bio_err, engine, 0);
#endif
if (outfile == NULL)
{
BIO_set_fp(out,stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
else
{
if (BIO_write_filename(out,outfile) <= 0)
{
perror(outfile);
goto err;
}
}
if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
&& !RAND_status())
{
BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
}
if (inrand != NULL)
BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
app_RAND_load_files(inrand));
BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n",
num);
rsa = RSA_new();
if (!rsa)
goto err;
if (use_x931)
{
BIGNUM *pubexp;
pubexp = BN_new();
if (!BN_set_word(pubexp, f4))
goto err;
if (!RSA_X931_generate_key_ex(rsa, num, pubexp, &cb))
goto err;
BN_free(pubexp);
}
else if(!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb))
goto err;
app_RAND_write_file(NULL, bio_err);
/* We need to do the following for when the base number size is <
* long, esp windows 3.1 :-(. */
l=0L;
for (i=0; i<rsa->e->top; i++)
{
#ifndef SIXTY_FOUR_BIT
l<<=BN_BITS4;
l<<=BN_BITS4;
#endif
l+=rsa->e->d[i];
}
BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
{
PW_CB_DATA cb_data;
cb_data.password = passout;
cb_data.prompt_info = outfile;
if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,
(pem_password_cb *)password_callback,&cb_data))
goto err;
}
ret=0;
err:
if (bn) BN_free(bn);
if (rsa) RSA_free(rsa);
if (out) BIO_free_all(out);
if(passout) OPENSSL_free(passout);
if (ret != 0)
ERR_print_errors(bio_err);
apps_shutdown();
OPENSSL_EXIT(ret);
}
