/* apps/ec.c */ /* * Written by Nils Larsch for the OpenSSL project. */ /* ==================================================================== * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ #include <openssl/opensslconf.h> #ifndef OPENSSL_NO_EC #include <stdio.h> #include <stdlib.h> #include <string.h> #include "apps.h" #include <openssl/bio.h> #include <openssl/err.h> #include <openssl/evp.h> #include <openssl/pem.h> #undef PROG #define PROG ec_main /* -inform arg - input format - default PEM (one of DER, NET or PEM) * -outform arg - output format - default PEM * -in arg - input file - default stdin * -out arg - output file - default stdout * -des - encrypt output if PEM format with DES in cbc mode * -text - print a text version * -param_out - print the elliptic curve parameters * -conv_form arg - specifies the point encoding form * -param_enc arg - specifies the parameter encoding */ int MAIN(int, char **); int MAIN(int argc, char **argv) { #ifndef OPENSSL_NO_ENGINE ENGINE *e = NULL; #endif int ret = 1; EC_KEY *eckey = NULL; const EC_GROUP *group; int i, badops = 0; const EVP_CIPHER *enc = NULL; BIO *in = NULL, *out = NULL; int informat, outformat, text=0, noout=0; int pubin = 0, pubout = 0, param_out = 0; char *infile, *outfile, *prog, *engine; char *passargin = NULL, *passargout = NULL; char *passin = NULL, *passout = NULL; point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; int new_form = 0; int asn1_flag = OPENSSL_EC_NAMED_CURVE; int new_asn1_flag = 0; apps_startup(); 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 end; engine = NULL; infile = NULL; outfile = NULL; informat = FORMAT_PEM; outformat = FORMAT_PEM; prog = argv[0]; argc--; argv++; while (argc >= 1) { if (strcmp(*argv,"-inform") == 0) { if (--argc < 1) goto bad; informat=str2fmt(*(++argv)); } else if (strcmp(*argv,"-outform") == 0) { if (--argc < 1) goto bad; outformat=str2fmt(*(++argv)); } else if (strcmp(*argv,"-in") == 0) { if (--argc < 1) goto bad; infile= *(++argv); } else if (strcmp(*argv,"-out") == 0) { if (--argc < 1) goto bad; outfile= *(++argv); } else if (strcmp(*argv,"-passin") == 0) { if (--argc < 1) goto bad; passargin= *(++argv); } else if (strcmp(*argv,"-passout") == 0) { if (--argc < 1) goto bad; passargout= *(++argv); } else if (strcmp(*argv, "-engine") == 0) { if (--argc < 1) goto bad; engine= *(++argv); } else if (strcmp(*argv, "-noout") == 0) noout = 1; else if (strcmp(*argv, "-text") == 0) text = 1; else if (strcmp(*argv, "-conv_form") == 0) { if (--argc < 1) goto bad; ++argv; new_form = 1; if (strcmp(*argv, "compressed") == 0) form = POINT_CONVERSION_COMPRESSED; else if (strcmp(*argv, "uncompressed") == 0) form = POINT_CONVERSION_UNCOMPRESSED; else if (strcmp(*argv, "hybrid") == 0) form = POINT_CONVERSION_HYBRID; else goto bad; } else if (strcmp(*argv, "-param_enc") == 0) { if (--argc < 1) goto bad; ++argv; new_asn1_flag = 1; if (strcmp(*argv, "named_curve") == 0) asn1_flag = OPENSSL_EC_NAMED_CURVE; else if (strcmp(*argv, "explicit") == 0) asn1_flag = 0; else goto bad; } else if (strcmp(*argv, "-param_out") == 0) param_out = 1; else if (strcmp(*argv, "-pubin") == 0) pubin=1; else if (strcmp(*argv, "-pubout") == 0) pubout=1; else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) { BIO_printf(bio_err, "unknown option %s\n", *argv); badops=1; break; } argc--; argv++; } if (badops) { bad: BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); BIO_printf(bio_err, "where options are\n"); BIO_printf(bio_err, " -inform arg input format - " "DER or PEM\n"); BIO_printf(bio_err, " -outform arg output format - " "DER or PEM\n"); BIO_printf(bio_err, " -in arg input file\n"); BIO_printf(bio_err, " -passin arg input file pass " "phrase source\n"); BIO_printf(bio_err, " -out arg output file\n"); BIO_printf(bio_err, " -passout arg output file pass " "phrase source\n"); BIO_printf(bio_err, " -engine e use engine e, " "possibly a hardware device.\n"); BIO_printf(bio_err, " -des encrypt PEM output, " "instead of 'des' every other \n" " cipher " "supported by OpenSSL can be used\n"); BIO_printf(bio_err, " -text print the key\n"); BIO_printf(bio_err, " -noout don't print key out\n"); BIO_printf(bio_err, " -param_out print the elliptic " "curve parameters\n"); BIO_printf(bio_err, " -conv_form arg specifies the " "point conversion form \n"); BIO_printf(bio_err, " possible values:" " compressed\n"); BIO_printf(bio_err, " " " uncompressed (default)\n"); BIO_printf(bio_err, " " " hybrid\n"); BIO_printf(bio_err, " -param_enc arg specifies the way" " the ec parameters are encoded\n"); BIO_printf(bio_err, " in the asn1 der " "encoding\n"); BIO_printf(bio_err, " possilbe values:" " named_curve (default)\n"); BIO_printf(bio_err," " "explicit\n"); goto end; } ERR_load_crypto_strings(); #ifndef OPENSSL_NO_ENGINE e = setup_engine(bio_err, engine, 0); #endif if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { BIO_printf(bio_err, "Error getting passwords\n"); goto end; } in = BIO_new(BIO_s_file()); out = BIO_new(BIO_s_file()); if ((in == NULL) || (out == NULL)) { ERR_print_errors(bio_err); goto end; } if (infile == NULL) BIO_set_fp(in, stdin, BIO_NOCLOSE); else { if (BIO_read_filename(in, infile) <= 0) { perror(infile); goto end; } } BIO_printf(bio_err, "read EC key\n"); if (informat == FORMAT_ASN1) { if (pubin) eckey = d2i_EC_PUBKEY_bio(in, NULL); else eckey = d2i_ECPrivateKey_bio(in, NULL); } else if (informat == FORMAT_PEM) { if (pubin) eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL); else eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin); } else { BIO_printf(bio_err, "bad input format specified for key\n"); goto end; } if (eckey == NULL) { BIO_printf(bio_err,"unable to load Key\n"); ERR_print_errors(bio_err); goto end; } 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 end; } } group = EC_KEY_get0_group(eckey); if (new_form) EC_KEY_set_conv_form(eckey, form); if (new_asn1_flag) EC_KEY_set_asn1_flag(eckey, asn1_flag); if (text) if (!EC_KEY_print(out, eckey, 0)) { perror(outfile); ERR_print_errors(bio_err); goto end; } if (noout) { ret = 0; goto end; } BIO_printf(bio_err, "writing EC key\n"); if (outformat == FORMAT_ASN1) { if (param_out) i = i2d_ECPKParameters_bio(out, group); else if (pubin || pubout) i = i2d_EC_PUBKEY_bio(out, eckey); else i = i2d_ECPrivateKey_bio(out, eckey); } else if (outformat == FORMAT_PEM) { if (param_out) i = PEM_write_bio_ECPKParameters(out, group); else if (pubin || pubout) i = PEM_write_bio_EC_PUBKEY(out, eckey); else i = PEM_write_bio_ECPrivateKey(out, eckey, enc, NULL, 0, NULL, passout); } else { BIO_printf(bio_err, "bad output format specified for " "outfile\n"); goto end; } if (!i) { BIO_printf(bio_err, "unable to write private key\n"); ERR_print_errors(bio_err); } else ret=0; end: if (in) BIO_free(in); if (out) BIO_free_all(out); if (eckey) EC_KEY_free(eckey); if (passin) OPENSSL_free(passin); if (passout) OPENSSL_free(passout); apps_shutdown(); OPENSSL_EXIT(ret); } #endif