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- /* apps/genpkey.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 2006
- */
- /* ====================================================================
- * Copyright (c) 2006 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
- * licensing@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 <stdio.h>
- #include <string.h>
- #include "apps.h"
- #include <openssl/pem.h>
- #include <openssl/err.h>
- #include <openssl/evp.h>
- static int init_keygen_file(BIO *err, EVP_PKEY_CTX **pctx,
- const char *file, ENGINE *e);
- static int init_gen_str(BIO *err, EVP_PKEY_CTX **pctx,
- const char *algname, ENGINE *e, int do_param);
- static int genpkey_cb(EVP_PKEY_CTX *ctx);
- #define PROG genpkey_main
- int MAIN(int, char **);
- int MAIN(int argc, char **argv)
- {
- ENGINE *e = NULL;
- char **args, *outfile = NULL;
- char *passarg = NULL;
- BIO *in = NULL, *out = NULL;
- const EVP_CIPHER *cipher = NULL;
- int outformat;
- int text = 0;
- EVP_PKEY *pkey=NULL;
- EVP_PKEY_CTX *ctx = NULL;
- char *pass = NULL;
- int badarg = 0;
- int ret = 1;
- int do_param = 0;
- if (bio_err == NULL)
- bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
- if (!load_config(bio_err, NULL))
- goto end;
- outformat=FORMAT_PEM;
- ERR_load_crypto_strings();
- OpenSSL_add_all_algorithms();
- args = argv + 1;
- while (!badarg && *args && *args[0] == '-')
- {
- if (!strcmp(*args,"-outform"))
- {
- if (args[1])
- {
- args++;
- outformat=str2fmt(*args);
- }
- else badarg = 1;
- }
- else if (!strcmp(*args,"-pass"))
- {
- if (!args[1]) goto bad;
- passarg= *(++args);
- }
- #ifndef OPENSSL_NO_ENGINE
- else if (strcmp(*args,"-engine") == 0)
- {
- if (!args[1])
- goto bad;
- e = setup_engine(bio_err, *(++args), 0);
- }
- #endif
- else if (!strcmp (*args, "-paramfile"))
- {
- if (!args[1])
- goto bad;
- args++;
- if (do_param == 1)
- goto bad;
- if (!init_keygen_file(bio_err, &ctx, *args, e))
- goto end;
- }
- else if (!strcmp (*args, "-out"))
- {
- if (args[1])
- {
- args++;
- outfile = *args;
- }
- else badarg = 1;
- }
- else if (strcmp(*args,"-algorithm") == 0)
- {
- if (!args[1])
- goto bad;
- if (!init_gen_str(bio_err, &ctx, *(++args),e, do_param))
- goto end;
- }
- else if (strcmp(*args,"-pkeyopt") == 0)
- {
- if (!args[1])
- goto bad;
- if (!ctx)
- {
- BIO_puts(bio_err, "No keytype specified\n");
- goto bad;
- }
- else if (pkey_ctrl_string(ctx, *(++args)) <= 0)
- {
- BIO_puts(bio_err, "parameter setting error\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- else if (strcmp(*args,"-genparam") == 0)
- {
- if (ctx)
- goto bad;
- do_param = 1;
- }
- else if (strcmp(*args,"-text") == 0)
- text=1;
- else
- {
- cipher = EVP_get_cipherbyname(*args + 1);
- if (!cipher)
- {
- BIO_printf(bio_err, "Unknown cipher %s\n",
- *args + 1);
- badarg = 1;
- }
- if (do_param == 1)
- badarg = 1;
- }
- args++;
- }
- if (!ctx)
- badarg = 1;
- if (badarg)
- {
- bad:
- BIO_printf(bio_err, "Usage genpkey [options]\n");
- BIO_printf(bio_err, "where options are\n");
- BIO_printf(bio_err, "-paramfile file parameter file\n");
- BIO_printf(bio_err, "-pass arg output file pass phrase source\n");
- BIO_printf(bio_err, "-outform X output format (DER or PEM)\n");
- BIO_printf(bio_err, "-out file output file\n");
- #ifndef OPENSSL_NO_ENGINE
- BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
- #endif
- return 1;
- }
- if (!app_passwd(bio_err, passarg, NULL, &pass, NULL))
- {
- BIO_puts(bio_err, "Error getting password\n");
- goto end;
- }
- if (outfile)
- {
- if (!(out = BIO_new_file (outfile, "wb")))
- {
- BIO_printf(bio_err,
- "Can't open output file %s\n", outfile);
- goto end;
- }
- }
- else
- {
- out = BIO_new_fp (stdout, BIO_NOCLOSE);
- #ifdef OPENSSL_SYS_VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- out = BIO_push(tmpbio, out);
- }
- #endif
- }
- EVP_PKEY_CTX_set_cb(ctx, genpkey_cb);
- EVP_PKEY_CTX_set_app_data(ctx, bio_err);
- if (do_param)
- {
- if (EVP_PKEY_paramgen(ctx, &pkey) <= 0)
- {
- BIO_puts(bio_err, "Error generating parameters\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- else
- {
- if (EVP_PKEY_keygen(ctx, &pkey) <= 0)
- {
- BIO_puts(bio_err, "Error generating key\n");
- ERR_print_errors(bio_err);
- goto end;
- }
- }
- if (do_param)
- PEM_write_bio_Parameters(out, pkey);
- else if (outformat == FORMAT_PEM)
- PEM_write_bio_PrivateKey(out, pkey, cipher, NULL, 0,
- NULL, pass);
- else if (outformat == FORMAT_ASN1)
- i2d_PrivateKey_bio(out, pkey);
- else
- {
- BIO_printf(bio_err, "Bad format specified for key\n");
- goto end;
- }
- if (text)
- {
- if (do_param)
- EVP_PKEY_print_params(out, pkey, 0, NULL);
- else
- EVP_PKEY_print_private(out, pkey, 0, NULL);
- }
- ret = 0;
- end:
- if (pkey)
- EVP_PKEY_free(pkey);
- if (ctx)
- EVP_PKEY_CTX_free(ctx);
- if (out)
- BIO_free_all(out);
- BIO_free(in);
- if (pass)
- OPENSSL_free(pass);
- return ret;
- }
- static int init_keygen_file(BIO *err, EVP_PKEY_CTX **pctx,
- const char *file, ENGINE *e)
- {
- BIO *pbio;
- EVP_PKEY *pkey = NULL;
- EVP_PKEY_CTX *ctx = NULL;
- if (*pctx)
- {
- BIO_puts(err, "Parameters already set!\n");
- return 0;
- }
- pbio = BIO_new_file(file, "r");
- if (!pbio)
- {
- BIO_printf(err, "Can't open parameter file %s\n", file);
- return 0;
- }
- pkey = PEM_read_bio_Parameters(pbio, NULL);
- BIO_free(pbio);
- if (!pkey)
- {
- BIO_printf(bio_err, "Error reading parameter file %s\n", file);
- return 0;
- }
- ctx = EVP_PKEY_CTX_new(pkey, e);
- if (!ctx)
- goto err;
- if (EVP_PKEY_keygen_init(ctx) <= 0)
- goto err;
- EVP_PKEY_free(pkey);
- *pctx = ctx;
- return 1;
- err:
- BIO_puts(err, "Error initializing context\n");
- ERR_print_errors(err);
- if (ctx)
- EVP_PKEY_CTX_free(ctx);
- if (pkey)
- EVP_PKEY_free(pkey);
- return 0;
- }
- static int init_gen_str(BIO *err, EVP_PKEY_CTX **pctx,
- const char *algname, ENGINE *e, int do_param)
- {
- EVP_PKEY_CTX *ctx = NULL;
- const EVP_PKEY_ASN1_METHOD *ameth;
- int pkey_id;
- if (*pctx)
- {
- BIO_puts(err, "Algorithm already set!\n");
- return 0;
- }
- ameth = EVP_PKEY_asn1_find_str(algname, -1);
- if (!ameth)
- {
- BIO_printf(bio_err, "Algorithm %s not found\n", algname);
- return 0;
- }
- EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, ameth);
- ctx = EVP_PKEY_CTX_new_id(pkey_id, e);
- if (!ctx)
- goto err;
- if (do_param)
- {
- if (EVP_PKEY_paramgen_init(ctx) <= 0)
- goto err;
- }
- else
- {
- if (EVP_PKEY_keygen_init(ctx) <= 0)
- goto err;
- }
- *pctx = ctx;
- return 1;
- err:
- BIO_printf(err, "Error initializing %s context\n", algname);
- ERR_print_errors(err);
- if (ctx)
- EVP_PKEY_CTX_free(ctx);
- return 0;
- }
- static int genpkey_cb(EVP_PKEY_CTX *ctx)
- {
- char c='*';
- BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
- int p;
- p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
- if (p == 0) c='.';
- if (p == 1) c='+';
- if (p == 2) c='*';
- if (p == 3) c='\n';
- BIO_write(b,&c,1);
- (void)BIO_flush(b);
- #ifdef LINT
- p=n;
- #endif
- return 1;
- }
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