/* $OpenBSD: dsa.c,v 1.2 2014/08/28 14:23:52 jsing Exp $ */ /* 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.] */ #include /* for OPENSSL_NO_DSA */ #include #include #include #include #include "apps.h" #include #include #include #include #include #include #include /* -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 * -aes128 - encrypt output if PEM format * -aes192 - encrypt output if PEM format * -aes256 - encrypt output if PEM format * -camellia128 - encrypt output if PEM format * -camellia192 - encrypt output if PEM format * -camellia256 - encrypt output if PEM format * -seed - encrypt output if PEM format * -text - print a text version * -modulus - print the DSA public key */ int dsa_main(int, char **); int dsa_main(int argc, char **argv) { ENGINE *e = NULL; int ret = 1; DSA *dsa = 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; #ifndef OPENSSL_NO_ENGINE char *engine; #endif char *passargin = NULL, *passargout = NULL; char *passin = NULL, *passout = NULL; int modulus = 0; int pvk_encr = 2; #ifndef OPENSSL_NO_ENGINE engine = NULL; #endif 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); } #ifndef OPENSSL_NO_ENGINE else if (strcmp(*argv, "-engine") == 0) { if (--argc < 1) goto bad; engine = *(++argv); } #endif else if (strcmp(*argv, "-pvk-strong") == 0) pvk_encr = 2; else if (strcmp(*argv, "-pvk-weak") == 0) pvk_encr = 1; else if (strcmp(*argv, "-pvk-none") == 0) pvk_encr = 0; else if (strcmp(*argv, "-noout") == 0) noout = 1; else if (strcmp(*argv, "-text") == 0) text = 1; else if (strcmp(*argv, "-modulus") == 0) modulus = 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] 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"); #ifndef OPENSSL_NO_ENGINE BIO_printf(bio_err, " -engine e use engine e, possibly a hardware device.\n"); #endif 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 #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, " -text print the key in text\n"); BIO_printf(bio_err, " -noout don't print key out\n"); BIO_printf(bio_err, " -modulus print the DSA public value\n"); goto end; } #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 DSA key\n"); { EVP_PKEY *pkey; if (pubin) pkey = load_pubkey(bio_err, infile, informat, 1, passin, e, "Public Key"); else pkey = load_key(bio_err, infile, informat, 1, passin, e, "Private Key"); if (pkey) { dsa = EVP_PKEY_get1_DSA(pkey); EVP_PKEY_free(pkey); } } if (dsa == 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); } else { if (BIO_write_filename(out, outfile) <= 0) { perror(outfile); goto end; } } if (text) { if (!DSA_print(out, dsa, 0)) { perror(outfile); ERR_print_errors(bio_err); goto end; } } if (modulus) { fprintf(stdout, "Public Key="); BN_print(out, dsa->pub_key); fprintf(stdout, "\n"); } if (noout) goto end; BIO_printf(bio_err, "writing DSA key\n"); if (outformat == FORMAT_ASN1) { if (pubin || pubout) i = i2d_DSA_PUBKEY_bio(out, dsa); else i = i2d_DSAPrivateKey_bio(out, dsa); } else if (outformat == FORMAT_PEM) { if (pubin || pubout) i = PEM_write_bio_DSA_PUBKEY(out, dsa); else i = PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout); #if !defined(OPENSSL_NO_RSA) && !defined(OPENSSL_NO_RC4) } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) { EVP_PKEY *pk; pk = EVP_PKEY_new(); EVP_PKEY_set1_DSA(pk, dsa); if (outformat == FORMAT_PVK) i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout); else if (pubin || pubout) i = i2b_PublicKey_bio(out, pk); else i = i2b_PrivateKey_bio(out, pk); EVP_PKEY_free(pk); #endif } else { BIO_printf(bio_err, "bad output format specified for outfile\n"); goto end; } if (i <= 0) { BIO_printf(bio_err, "unable to write private key\n"); ERR_print_errors(bio_err); } else ret = 0; end: BIO_free(in); if (out != NULL) BIO_free_all(out); if (dsa != NULL) DSA_free(dsa); free(passin); free(passout); return (ret); }