BIO_printf (bio_err, "Usage pkcs8 [options]\n"); BIO_printf (bio_err, "where options are\n"); BIO_printf (bio_err, "-in file   input file\n"); BIO_printf (bio_err, "-inform X  input format (DER or PEM)\n"); BIO_printf (bio_err, "-outform X output format (DER or PEM)\n"); BIO_printf (bio_err, "-out file  output file\n"); BIO_printf (bio_err, "-topk8     output PKCS8 file\n"); BIO_printf (bio_err, "-nooct     use (broken) no octet form\n"); BIO_printf (bio_err, "-noiter    use 1 as iteration count\n"); BIO_printf (bio_err, "-nocrypt   use or expect unencrypted private key\n"); BIO_printf (bio_err, "-v2 alg    use PKCS#5 v2.0 and cipher \"alg\"\n"); BIO_printf (bio_err, "-v1 obj    use PKCS#5 v1.5 and cipher \"alg\"\n");
bad: BIO_printf(bio_err, "Usage pkcs8 [options]\n"); BIO_printf(bio_err, "where options are\n"); BIO_printf(bio_err, "-in file   input file\n"); BIO_printf(bio_err, "-inform X  input format (DER or PEM)\n"); BIO_printf(bio_err, "-passin arg     input file pass phrase\n"); BIO_printf(bio_err, "-envpassin arg  environment variable containing input file pass phrase\n"); BIO_printf(bio_err, "-outform X output format (DER or PEM)\n"); BIO_printf(bio_err, "-out file  output file\n"); BIO_printf(bio_err, "-passout arg    input file pass phrase\n"); BIO_printf(bio_err, "-envpassout arg environment variable containing input file pass phrase\n"); BIO_printf(bio_err, "-topk8     output PKCS8 file\n"); BIO_printf(bio_err, "-nooct     use (broken) no octet form\n"); BIO_printf(bio_err, "-noiter    use 1 as iteration count\n"); BIO_printf(bio_err, "-nocrypt   use or expect unencrypted private key\n"); BIO_printf(bio_err, "-v2 alg    use PKCS#5 v2.0 and cipher \"alg\"\n"); BIO_printf(bio_err, "-v1 obj    use PKCS#5 v1.5 and cipher \"alg\"\n");
int MAIN(int argc, char **argv){	char **args, *infile = NULL, *outfile = NULL;	BIO *in = NULL, *out = NULL;	int topk8 = 0;	int pbe_nid = -1;	const EVP_CIPHER *cipher = NULL;	int iter = PKCS12_DEFAULT_ITER;	int informat, outformat;	int p8_broken = PKCS8_OK;	int nocrypt = 0;	X509_SIG *p8;	PKCS8_PRIV_KEY_INFO *p8inf;	EVP_PKEY *pkey;	char pass[50];	int badarg = 0;	if (bio_err == NULL) bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);	informat=FORMAT_PEM;	outformat=FORMAT_PEM;	ERR_load_crypto_strings();	SSLeay_add_all_algorithms();	args = argv + 1;	while (!badarg && *args && *args[0] == '-') {		if (!strcmp(*args,"-v2")) {			if (args[1]) {				args++;				cipher=EVP_get_cipherbyname(*args);				if(!cipher) {					BIO_printf(bio_err,						 "Unknown cipher %s\n", *args);					badarg = 1;				}			} else badarg = 1;		} else if (!strcmp(*args,"-v1")) {			if (args[1]) {				args++;				pbe_nid=OBJ_txt2nid(*args);				if(pbe_nid == NID_undef) {					BIO_printf(bio_err,						 "Unknown PBE algorithm %s\n", *args);					badarg = 1;				}			} else badarg = 1;		} else if (!strcmp(*args,"-inform")) {			if (args[1]) {				args++;				informat=str2fmt(*args);			} else badarg = 1;		} else if (!strcmp(*args,"-outform")) {			if (args[1]) {				args++;				outformat=str2fmt(*args);			} else badarg = 1;		} else if (!strcmp (*args, "-topk8")) topk8 = 1;		else if (!strcmp (*args, "-noiter")) iter = 1;		else if (!strcmp (*args, "-nocrypt")) nocrypt = 1;		else if (!strcmp (*args, "-nooct")) p8_broken = PKCS8_NO_OCTET;		else if (!strcmp (*args, "-in")) {			if (args[1]) {				args++;				infile = *args;			} else badarg = 1;		} else if (!strcmp (*args, "-out")) {			if (args[1]) {				args++;				outfile = *args;			} else badarg = 1;		} else badarg = 1;		args++;	}	if (badarg) {		BIO_printf (bio_err, "Usage pkcs8 [options]\n");		BIO_printf (bio_err, "where options are\n");		BIO_printf (bio_err, "-in file   input file\n");		BIO_printf (bio_err, "-inform X  input format (DER or PEM)\n");		BIO_printf (bio_err, "-outform X output format (DER or PEM)\n");		BIO_printf (bio_err, "-out file  output file\n");		BIO_printf (bio_err, "-topk8     output PKCS8 file\n");		BIO_printf (bio_err, "-nooct     use (broken) no octet form\n");		BIO_printf (bio_err, "-noiter    use 1 as iteration count\n");		BIO_printf (bio_err, "-nocrypt   use or expect unencrypted private key\n");		BIO_printf (bio_err, "-v2 alg    use PKCS#5 v2.0 and cipher \"alg\"\n");		BIO_printf (bio_err, "-v1 obj    use PKCS#5 v1.5 and cipher \"alg\"\n");		return (1);	}	if ((pbe_nid == -1) && !cipher) pbe_nid = NID_pbeWithMD5AndDES_CBC;	if (infile) {		if (!(in = BIO_new_file (infile, "rb"))) {			BIO_printf (bio_err,				 "Can't open input file %s\n", infile);			return (1);		}	} else in = BIO_new_fp (stdin, BIO_NOCLOSE);	if (outfile) {		if (!(out = BIO_new_file (outfile, "wb"))) {			BIO_printf (bio_err,				 "Can't open output file %s\n", outfile);			return (1);		}	} else out = BIO_new_fp (stdout, BIO_NOCLOSE);	if (topk8) {		if (!(pkey = PEM_read_bio_PrivateKey(in, NULL, NULL, NULL))) {			BIO_printf (bio_err, "Error reading key\n", outfile);			ERR_print_errors(bio_err);			return (1);		}		BIO_free(in);		if (!(p8inf = EVP_PKEY2PKCS8(pkey))) {			BIO_printf (bio_err, "Error converting key\n", outfile);			ERR_print_errors(bio_err);			return (1);		}		PKCS8_set_broken(p8inf, p8_broken);		if(nocrypt) {			if(outformat == FORMAT_PEM) 				PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);			else if(outformat == FORMAT_ASN1)				i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);			else {				BIO_printf(bio_err, "Bad format specified for key\n");				return (1);			}		} else {			EVP_read_pw_string(pass, 50, "Enter Encryption Password:", 1);			if (!(p8 = PKCS8_encrypt(pbe_nid, cipher,					pass, strlen(pass),					NULL, 0, iter, p8inf))) {				BIO_printf (bio_err, "Error encrypting key\n",								 outfile);				ERR_print_errors(bio_err);				return (1);			}			if(outformat == FORMAT_PEM) 				PEM_write_bio_PKCS8 (out, p8);			else if(outformat == FORMAT_ASN1)				i2d_PKCS8_bio(out, p8);			else {				BIO_printf(bio_err, "Bad format specified for key\n");				return (1);			}			X509_SIG_free(p8);		}		PKCS8_PRIV_KEY_INFO_free (p8inf);		EVP_PKEY_free(pkey);		BIO_free(out);		return (0);	}	if(nocrypt) {		if(informat == FORMAT_PEM) 			p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in,NULL,NULL, NULL);		else if(informat == FORMAT_ASN1)			p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);		else {			BIO_printf(bio_err, "Bad format specified for key\n");			return (1);		}	} else {		if(informat == FORMAT_PEM) 			p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);		else if(informat == FORMAT_ASN1)			p8 = d2i_PKCS8_bio(in, NULL);		else {			BIO_printf(bio_err, "Bad format specified for key\n");			return (1);		}		if (!p8) {			BIO_printf (bio_err, "Error reading key\n", outfile);			ERR_print_errors(bio_err);			return (1);		}		EVP_read_pw_string(pass, 50, "Enter Password:", 0);		p8inf = M_PKCS8_decrypt(p8, pass, strlen(pass));		X509_SIG_free(p8);	}	if (!p8inf) {		BIO_printf(bio_err, "Error decrypting key\n", outfile);		ERR_print_errors(bio_err);		return (1);	}	if (!(pkey = EVP_PKCS82PKEY(p8inf))) {		BIO_printf(bio_err, "Error converting key\n", outfile);		ERR_print_errors(bio_err);		return (1);	}		if (p8inf->broken) {		BIO_printf(bio_err, "Warning: broken key encoding: ");		switch (p8inf->broken) {			case PKCS8_NO_OCTET:			BIO_printf(bio_err, "No Octet String\n");			break;			default:			BIO_printf(bio_err, "Unknown broken type\n");			break;		}	}		PKCS8_PRIV_KEY_INFO_free(p8inf);	PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, NULL);	EVP_PKEY_free(pkey);	BIO_free(out);	BIO_free(in);	return (0);}