{"3", OPT_3, '-', "Use 3 for the E value"},
{"F4", OPT_F4, '-', "Use F4 (0x10001) for the E value"},
{"f4", OPT_F4, '-', "Use F4 (0x10001) for the E value"},
- {"out", OPT_OUT, 's', "Output the key to specified file"},
+ {"out", OPT_OUT, '>', "Output the key to specified file"},
OPT_R_OPTIONS,
{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
{"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"},
if (argc == 1) {
if (!opt_int(argv[0], &num) || num <= 0)
goto end;
+ if (num > OPENSSL_RSA_MAX_MODULUS_BITS)
+ BIO_printf(bio_err,
+ "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
+ " Your key size is %d! Larger key size may behave not as expected.\n",
+ OPENSSL_RSA_MAX_MODULUS_BITS, num);
} else if (argc > 0) {
BIO_printf(bio_err, "Extra arguments given.\n");
goto opthelp;