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Diffstat (limited to 'apps/ecdsa.c')
| -rw-r--r-- | apps/ecdsa.c | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/apps/ecdsa.c b/apps/ecdsa.c new file mode 100644 index 0000000000..e8aa7461b4 --- /dev/null +++ b/apps/ecdsa.c @@ -0,0 +1,435 @@ +/* apps/ecdsa.c */ +/* ==================================================================== + * Copyright (c) 1998-2002 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). + * + */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * 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 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 acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS 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 AUTHOR OR 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. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#ifndef OPENSSL_NO_ECDSA +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include "apps.h" +#include <openssl/bio.h> +#include <openssl/err.h> +#include <openssl/ecdsa.h> +#include <openssl/evp.h> +#include <openssl/x509.h> +#include <openssl/pem.h> + +#undef PROG +#define PROG ecdsa_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 + * -des3 - encrypt output if PEM format + * -idea - encrypt output if PEM format + * -text - print a text version + * -pub - print the ECDSA public key + * -compressed - print the public key in compressed form ( default ) + * -hybrid - print the public key in hybrid form + * -uncompressed - print the public key in uncompressed form + * the last three options ( compressed, hybrid and uncompressed ) + * are only used if the "-pub" option is also selected. + * For a precise description of the the meaning of compressed, + * hybrid and uncompressed please refer to the X9.62 standart. + * All three forms represents ways to express the ecdsa public + * key ( a point on a elliptic curve ) as octet string. Let len be + * the length ( in bytes ) of an element of the field over which + * the curve is defined, then a compressed octet string has the form + * 0x02 + result of BN_bn2bin() of the x coordinate of the public key + */ + +int MAIN(int, char **); + +int MAIN(int argc, char **argv) +{ + ENGINE *e = NULL; + int ret = 1; + ECDSA *ecdsa = NULL; + 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; + char *infile, *outfile, *prog, *engine; + char *passargin = NULL, *passargout = NULL; + char *passin = NULL, *passout = NULL; + int pub = 0, point_form = 0; + unsigned char *buffer = NULL; + unsigned int buf_len = 0; + BIGNUM *tmp_bn = NULL; + + 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); + + 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, "-pub") == 0) + { + pub = 1; + buffer = (*(argv+1)); + if (strcmp(buffer, "compressed") == 0) + point_form = POINT_CONVERSION_COMPRESSED; + else if (strcmp(buffer, "hybrid") == 0) + point_form = POINT_CONVERSION_HYBRID; + else if (strcmp(buffer, "uncompressed") == 0) + point_form = POINT_CONVERSION_UNCOMPRESSED; + if (point_form) + { + argc--; + argv++; + } + } + 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 with cbc des\n"); + BIO_printf(bio_err, " -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); +#ifndef OPENSSL_NO_IDEA + BIO_printf(bio_err, " -idea encrypt PEM output with cbc idea\n"); +#endif + BIO_printf(bio_err, " -text print the key in text\n"); + BIO_printf(bio_err, " -noout don't print key out\n"); + BIO_printf(bio_err, " -pub [compressed | hybrid | uncompressed] \n"); + BIO_printf(bio_err, " compressed print the public key in compressed form ( default )\n"); + BIO_printf(bio_err, " hybrid print the public key in hybrid form\n"); + BIO_printf(bio_err, " uncompressed print the public key in uncompressed form\n"); + goto end; + } + + ERR_load_crypto_strings(); + + e = setup_engine(bio_err, engine, 0); + + 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 ECDSA key\n"); + if (informat == FORMAT_ASN1) + { + if (pubin) + ecdsa = d2i_ECDSA_PUBKEY_bio(in, NULL); + else + ecdsa = d2i_ECDSAPrivateKey_bio(in, NULL); + } else if (informat == FORMAT_PEM) + { + if (pubin) + ecdsa = PEM_read_bio_ECDSA_PUBKEY(in, NULL, NULL, NULL); + else + ecdsa = PEM_read_bio_ECDSAPrivateKey(in, NULL, NULL, passin); + } else + { + BIO_printf(bio_err, "bad input format specified for key\n"); + goto end; + } + if (ecdsa == 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; + } + } + + if (text) + if (!ECDSA_print(out, ecdsa, 0)) + { + perror(outfile); + ERR_print_errors(bio_err); + goto end; + } + + if (pub) + { + fprintf(stdout, "Public Key ("); + if (point_form == POINT_CONVERSION_COMPRESSED) + fprintf(stdout, "COMPRESSED"); + else if (point_form == POINT_CONVERSION_UNCOMPRESSED) + fprintf(stdout, "UNCOMPRESSED"); + else if (point_form == POINT_CONVERSION_HYBRID) + fprintf(stdout, "HYBRID"); + fprintf(stdout, ")="); + buf_len = EC_POINT_point2oct(ecdsa->group, EC_GROUP_get0_generator(ecdsa->group), + point_form, NULL, 0, NULL); + if (!buf_len) + { + BIO_printf(bio_err,"invalid public key length\n"); + ERR_print_errors(bio_err); + goto end; + } + if ((tmp_bn = BN_new()) == NULL || + (buffer = OPENSSL_malloc(buf_len)) == NULL) goto end; + if (!EC_POINT_point2oct(ecdsa->group, EC_GROUP_get0_generator(ecdsa->group), + point_form, buffer, buf_len, NULL) || + !BN_bin2bn(buffer, buf_len, tmp_bn)) + { + BIO_printf(bio_err,"can not encode public key\n"); + ERR_print_errors(bio_err); + OPENSSL_free(buffer); + goto end; + } + BN_print(out, tmp_bn); + fprintf(stdout,"\n"); + } + + if (noout) + goto end; + BIO_printf(bio_err, "writing ECDSA key\n"); + if (outformat == FORMAT_ASN1) + { + if(pubin || pubout) + i = i2d_ECDSA_PUBKEY_bio(out, ecdsa); + else + i = i2d_ECDSAPrivateKey_bio(out, ecdsa); + } else if (outformat == FORMAT_PEM) + { + if(pubin || pubout) + i = PEM_write_bio_ECDSA_PUBKEY(out, ecdsa); + else + i = PEM_write_bio_ECDSAPrivateKey(out, ecdsa, 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 (ecdsa) ECDSA_free(ecdsa); + if (tmp_bn) BN_free(tmp_bn); + if (passin) OPENSSL_free(passin); + if (passout) OPENSSL_free(passout); + apps_shutdown(); + EXIT(ret); +} +#endif |