-/* apps/genrsa.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. 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.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include "apps.h"
-#include "bio.h"
-#include "rand.h"
-#include "err.h"
-#include "bn.h"
-#include "rsa.h"
-#include "evp.h"
-#include "x509.h"
-#include "pem.h"
-
-#define DEFBITS 512
-#undef PROG
-#define PROG genrsa_main
-
-#ifndef NOPROTO
-static void MS_CALLBACK genrsa_cb(int p, int n, char *arg);
-static long gr_load_rand(char *names);
+#include <openssl/opensslconf.h>
+#ifdef OPENSSL_NO_RSA
+NON_EMPTY_TRANSLATION_UNIT
#else
-static void MS_CALLBACK genrsa_cb();
-static long gr_load_rand();
-#endif
-
-int MAIN(argc, argv)
-int argc;
-char **argv;
- {
- int ret=1;
- char buffer[200];
- RSA *rsa=NULL;
- int i,num=DEFBITS;
- long rnum=0,l;
- EVP_CIPHER *enc=NULL;
- unsigned long f4=RSA_F4;
- char *outfile=NULL;
- char *inrand=NULL,*randfile;
- BIO *out=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);
- if ((out=BIO_new(BIO_s_file())) == NULL)
- {
- BIO_printf(bio_err,"unable to creat BIO for output\n");
- goto err;
- }
- argv++;
- argc--;
- for (;;)
- {
- if (argc <= 0) break;
- if (strcmp(*argv,"-out") == 0)
- {
- if (--argc < 1) goto bad;
- outfile= *(++argv);
- }
- else if (strcmp(*argv,"-3") == 0)
- f4=3;
- else if (strcmp(*argv,"-F4") == 0)
- f4=RSA_F4;
- else if (strcmp(*argv,"-rand") == 0)
- {
- if (--argc < 1) goto bad;
- inrand= *(++argv);
- }
-#ifndef NO_DES
- else if (strcmp(*argv,"-des") == 0)
- enc=EVP_des_cbc();
- else if (strcmp(*argv,"-des3") == 0)
- enc=EVP_des_ede3_cbc();
+# include <stdio.h>
+# include <string.h>
+# include <sys/types.h>
+# include <sys/stat.h>
+# include "apps.h"
+# include <openssl/bio.h>
+# include <openssl/err.h>
+# include <openssl/bn.h>
+# include <openssl/rsa.h>
+# include <openssl/evp.h>
+# include <openssl/x509.h>
+# include <openssl/pem.h>
+# include <openssl/rand.h>
+
+# define DEFBITS 2048
+
+static int genrsa_cb(int p, int n, BN_GENCB *cb);
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_3, OPT_F4, OPT_ENGINE,
+ OPT_OUT, OPT_PASSOUT, OPT_CIPHER,
+ OPT_R_ENUM
+} OPTION_CHOICE;
+
+const OPTIONS genrsa_options[] = {
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"3", OPT_3, '-', "Use 3 for the E value"},
+ {"F4", OPT_F4, '-', "Use F4 (0x10001) for the E value"},
+ {"f4", OPT_F4, '-', "Use F4 (0x10001) for the E value"},
+ {"out", OPT_OUT, 's', "Output the key to specified file"},
+ OPT_R_OPTIONS,
+ {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
+ {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"},
+# ifndef OPENSSL_NO_ENGINE
+ {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
+# endif
+ {NULL}
+};
+
+int genrsa_main(int argc, char **argv)
+{
+ BN_GENCB *cb = BN_GENCB_new();
+ PW_CB_DATA cb_data;
+ ENGINE *eng = NULL;
+ BIGNUM *bn = BN_new();
+ BIO *out = NULL;
+ const BIGNUM *e;
+ RSA *rsa = NULL;
+ const EVP_CIPHER *enc = NULL;
+ int ret = 1, num = DEFBITS, private = 0;
+ unsigned long f4 = RSA_F4;
+ char *outfile = NULL, *passoutarg = NULL, *passout = NULL;
+ char *prog, *hexe, *dece;
+ OPTION_CHOICE o;
+
+ if (bn == NULL || cb == NULL)
+ goto end;
+
+ BN_GENCB_set(cb, genrsa_cb, bio_err);
+
+ prog = opt_init(argc, argv, genrsa_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ ret = 0;
+ opt_help(genrsa_options);
+ goto end;
+ case OPT_3:
+ f4 = 3;
+ break;
+ case OPT_F4:
+ f4 = RSA_F4;
+ break;
+ case OPT_OUT:
+ outfile = opt_arg();
+ break;
+ case OPT_ENGINE:
+ eng = setup_engine(opt_arg(), 0);
+ break;
+ case OPT_R_CASES:
+ if (!opt_rand(o))
+ goto end;
+ break;
+ case OPT_PASSOUT:
+ passoutarg = opt_arg();
+ break;
+ case OPT_CIPHER:
+ if (!opt_cipher(opt_unknown(), &enc))
+ goto end;
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
+
+ if (argc == 1) {
+ if (!opt_int(argv[0], &num) || num <= 0)
+ goto end;
+ } else if (argc > 0) {
+ BIO_printf(bio_err, "Extra arguments given.\n");
+ goto opthelp;
+ }
+
+ private = 1;
+ if (!app_passwd(NULL, passoutarg, NULL, &passout)) {
+ BIO_printf(bio_err, "Error getting password\n");
+ goto end;
+ }
+
+ out = bio_open_owner(outfile, FORMAT_PEM, private);
+ if (out == NULL)
+ goto end;
+
+ BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus\n",
+ num);
+ rsa = eng ? RSA_new_method(eng) : RSA_new();
+ if (rsa == NULL)
+ goto end;
+
+ if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, cb))
+ goto end;
+
+ RSA_get0_key(rsa, NULL, &e, NULL);
+ hexe = BN_bn2hex(e);
+ dece = BN_bn2dec(e);
+ if (hexe && dece) {
+ BIO_printf(bio_err, "e is %s (0x%s)\n", dece, hexe);
+ }
+ OPENSSL_free(hexe);
+ OPENSSL_free(dece);
+ cb_data.password = passout;
+ cb_data.prompt_info = outfile;
+ assert(private);
+ if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0,
+ (pem_password_cb *)password_callback,
+ &cb_data))
+ goto end;
+
+ ret = 0;
+ end:
+ BN_free(bn);
+ BN_GENCB_free(cb);
+ RSA_free(rsa);
+ BIO_free_all(out);
+ release_engine(eng);
+ OPENSSL_free(passout);
+ if (ret != 0)
+ ERR_print_errors(bio_err);
+ return (ret);
+}
+
+static int genrsa_cb(int p, int n, BN_GENCB *cb)
+{
+ char c = '*';
+
+ if (p == 0)
+ c = '.';
+ if (p == 1)
+ c = '+';
+ if (p == 2)
+ c = '*';
+ if (p == 3)
+ c = '\n';
+ BIO_write(BN_GENCB_get_arg(cb), &c, 1);
+ (void)BIO_flush(BN_GENCB_get_arg(cb));
+ return 1;
+}
#endif
-#ifndef NO_IDEA
- else if (strcmp(*argv,"-idea") == 0)
- enc=EVP_idea_cbc();
-#endif
- else
- break;
- argv++;
- argc--;
- }
- if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
- {
-bad:
- BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
- BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n");
- BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
-#ifndef NO_IDEA
- BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n");
-#endif
- BIO_printf(bio_err," -out file - output the key to 'file\n");
- BIO_printf(bio_err," -f4 - use F4 (0x10001) for the E value\n");
- BIO_printf(bio_err," -3 - use 3 for the E value\n");
- BIO_printf(bio_err," -rand file:file:...\n");
- BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
- BIO_printf(bio_err," the random number generator\n");
- goto err;
- }
-
- ERR_load_crypto_strings();
- if (outfile == NULL)
- BIO_set_fp(out,stdout,BIO_NOCLOSE);
- else
- {
- if (BIO_write_filename(out,outfile) <= 0)
- {
- perror(outfile);
- goto err;
- }
- }
-
-#ifdef WINDOWS
- BIO_printf(bio_err,"Loading 'screen' into random state -");
- BIO_flush(bio_err);
- RAND_screen();
- BIO_printf(bio_err," done\n");
-#endif
- randfile=RAND_file_name(buffer,200);
- if ((randfile == NULL) ||
- !(rnum=(long)RAND_load_file(randfile,1024L*1024L)))
- {
- BIO_printf(bio_err,"unable to load 'random state'\n");
- }
-
- if (inrand == NULL)
- {
- if (rnum == 0)
- {
- BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
- }
- }
- else
- {
- rnum+=gr_load_rand(inrand);
- }
- if (rnum != 0)
- BIO_printf(bio_err,"%ld semi-random bytes loaded\n",rnum);
-
- BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n",
- num);
- rsa=RSA_generate_key(num,f4,genrsa_cb,(char *)bio_err);
-
- if (randfile == NULL)
- BIO_printf(bio_err,"unable to write 'random state'\n");
- else
- RAND_write_file(randfile);
-
- if (rsa == NULL) goto err;
-
- /* We need to do the folloing for when the base number size is <
- * long, esp windows 3.1 :-(. */
- l=0L;
- for (i=0; i<rsa->e->top; i++)
- {
-#ifndef SIXTY_FOUR_BIT
- l<<=BN_BITS4;
- l<<=BN_BITS4;
-#endif
- l+=rsa->e->d[i];
- }
- BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
- if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,NULL))
- goto err;
-
- ret=0;
-err:
- if (rsa != NULL) RSA_free(rsa);
- if (out != NULL) BIO_free(out);
- if (ret != 0)
- ERR_print_errors(bio_err);
- EXIT(ret);
- }
-
-static void MS_CALLBACK genrsa_cb(p, n, arg)
-int p;
-int n;
-char *arg;
- {
- char c='*';
-
- if (p == 0) c='.';
- if (p == 1) c='+';
- if (p == 2) c='*';
- if (p == 3) c='\n';
- BIO_write((BIO *)arg,&c,1);
- BIO_flush((BIO *)arg);
-#ifdef LINT
- p=n;
-#endif
- }
-
-static long gr_load_rand(name)
-char *name;
- {
- char *p,*n;
- int last;
- long tot=0;
-
- for (;;)
- {
- last=0;
- for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++);
- if (*p == '\0') last=1;
- *p='\0';
- n=name;
- name=p+1;
- if (*n == '\0') break;
-
- tot+=RAND_load_file(n,1024L*1024L);
- if (last) break;
- }
- return(tot);
- }
-
-
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