1 files changed, 147 insertions, 291 deletions

diff --git a/apps/genrsa.c b/apps/genrsa.c
index 51dcfcaea071..c17cd147154e 100644
--- a/apps/genrsa.c
+++ b/apps/genrsa.c
@@ -1,76 +1,23 @@
-/* apps/genrsa.c */
-/* 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.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * 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 <openssl/opensslconf.h>
-/*
- * Until the key-gen callbacks are modified to use newer prototypes, we allow
- * deprecated functions for openssl-internal code
- */
-#ifdef OPENSSL_NO_DEPRECATED
-# undef OPENSSL_NO_DEPRECATED
-#endif
+#ifdef OPENSSL_NO_RSA
+NON_EMPTY_TRANSLATION_UNIT
+#else
 
-#ifndef OPENSSL_NO_RSA
 # include <stdio.h>
 # include <string.h>
 # include <sys/types.h>
 # include <sys/stat.h>
 # include "apps.h"
+# include "progs.h"
 # include <openssl/bio.h>
 # include <openssl/err.h>
 # include <openssl/bn.h>
@@ -81,243 +28,161 @@
 # include <openssl/rand.h>
 
 # define DEFBITS 2048
-# undef PROG
-# define PROG genrsa_main
-
-static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb);
-
-int MAIN(int, char **);
+# define DEFPRIMES 2
+
+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_PRIMES,
+    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, '>', "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
+    {"primes", OPT_PRIMES, 'p', "Specify number of primes"},
+    {NULL}
+};
 
-int MAIN(int argc, char **argv)
+int genrsa_main(int argc, char **argv)
 {
-    BN_GENCB cb;
-    ENGINE *e = NULL;
-    int ret = 1;
-    int i, num = DEFBITS;
-    long l;
-    const EVP_CIPHER *enc = NULL;
-    unsigned long f4 = RSA_F4;
-    char *outfile = NULL;
-    char *passargout = NULL, *passout = NULL;
-    char *engine = NULL;
-    char *inrand = NULL;
-    BIO *out = NULL;
+    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;
-
-    if (!bn)
-        goto err;
-
-    apps_startup();
-    BN_GENCB_set(&cb, genrsa_cb, bio_err);
-
-    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 err;
-    if ((out = BIO_new(BIO_s_file())) == NULL) {
-        BIO_printf(bio_err, "unable to create 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)
+    const EVP_CIPHER *enc = NULL;
+    int ret = 1, num = DEFBITS, private = 0, primes = DEFPRIMES;
+    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;
-        else if (strcmp(*argv, "-F4") == 0 || strcmp(*argv, "-f4") == 0)
+            break;
+        case OPT_F4:
             f4 = RSA_F4;
-# ifndef OPENSSL_NO_ENGINE
-        else if (strcmp(*argv, "-engine") == 0) {
-            if (--argc < 1)
-                goto bad;
-            engine = *(++argv);
-        }
-# endif
-        else if (strcmp(*argv, "-rand") == 0) {
-            if (--argc < 1)
-                goto bad;
-            inrand = *(++argv);
-        }
-# ifndef OPENSSL_NO_DES
-        else if (strcmp(*argv, "-des") == 0)
-            enc = EVP_des_cbc();
-        else if (strcmp(*argv, "-des3") == 0)
-            enc = EVP_des_ede3_cbc();
-# endif
-# ifndef OPENSSL_NO_IDEA
-        else if (strcmp(*argv, "-idea") == 0)
-            enc = EVP_idea_cbc();
-# endif
-# ifndef OPENSSL_NO_SEED
-        else if (strcmp(*argv, "-seed") == 0)
-            enc = EVP_seed_cbc();
-# endif
-# ifndef OPENSSL_NO_AES
-        else if (strcmp(*argv, "-aes128") == 0)
-            enc = EVP_aes_128_cbc();
-        else if (strcmp(*argv, "-aes192") == 0)
-            enc = EVP_aes_192_cbc();
-        else if (strcmp(*argv, "-aes256") == 0)
-            enc = EVP_aes_256_cbc();
-# endif
-# ifndef OPENSSL_NO_CAMELLIA
-        else if (strcmp(*argv, "-camellia128") == 0)
-            enc = EVP_camellia_128_cbc();
-        else if (strcmp(*argv, "-camellia192") == 0)
-            enc = EVP_camellia_192_cbc();
-        else if (strcmp(*argv, "-camellia256") == 0)
-            enc = EVP_camellia_256_cbc();
-# endif
-        else if (strcmp(*argv, "-passout") == 0) {
-            if (--argc < 1)
-                goto bad;
-            passargout = *(++argv);
-        } else
             break;
-        argv++;
-        argc--;
+        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;
+        case OPT_PRIMES:
+            if (!opt_int(opt_arg(), &primes))
+                goto end;
+            break;
+        }
     }
-    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 OPENSSL_NO_IDEA
-        BIO_printf(bio_err,
-                   " -idea           encrypt the generated key with IDEA in cbc mode\n");
-# endif
-# ifndef OPENSSL_NO_SEED
-        BIO_printf(bio_err, " -seed\n");
-        BIO_printf(bio_err,
-                   "                 encrypt PEM output with cbc seed\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, " -out file       output the key to 'file\n");
-        BIO_printf(bio_err,
-                   " -passout arg    output file pass phrase source\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");
-# ifndef OPENSSL_NO_ENGINE
-        BIO_printf(bio_err,
-                   " -engine e       use engine e, possibly a hardware device.\n");
-# endif
-        BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
-                   LIST_SEPARATOR_CHAR);
-        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;
+    argc = opt_num_rest();
+    argv = opt_rest();
+
+    if (argc == 1) {
+        if (!opt_int(argv[0], &num) || num <= 0)
+            goto end;
+        if (num > OPENSSL_RSA_MAX_MODULUS_BITS)
+            BIO_printf(bio_err,
+                       "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
+                       "         Your key size is %d! Larger key size may behave not as expected.\n",
+                       OPENSSL_RSA_MAX_MODULUS_BITS, num);
+    } else if (argc > 0) {
+        BIO_printf(bio_err, "Extra arguments given.\n");
+        goto opthelp;
     }
 
-    ERR_load_crypto_strings();
-
-    if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
+    private = 1;
+    if (!app_passwd(NULL, passoutarg, NULL, &passout)) {
         BIO_printf(bio_err, "Error getting password\n");
-        goto err;
+        goto end;
     }
-    e = setup_engine(bio_err, engine, 0);
 
-    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 err;
-        }
-    }
-
-    if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
-        && !RAND_status()) {
-        BIO_printf(bio_err,
-                   "warning, not much extra random data, consider using the -rand option\n");
-    }
-    if (inrand != NULL)
-        BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
-                   app_RAND_load_files(inrand));
-
-    BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus\n",
-               num);
-# ifdef OPENSSL_NO_ENGINE
-    rsa = RSA_new();
-# else
-    rsa = RSA_new_method(e);
-# endif
-    if (!rsa)
-        goto err;
-
-    if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb))
-        goto err;
-
-    app_RAND_write_file(NULL, bio_err);
-
-    /*
-     * We need to do the following 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);
-    {
-        PW_CB_DATA cb_data;
-        cb_data.password = passout;
-        cb_data.prompt_info = outfile;
-        if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0,
-                                         (pem_password_cb *)password_callback,
-                                         &cb_data))
-            goto err;
+    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 (%d primes)\n",
+               num, primes);
+    rsa = eng ? RSA_new_method(eng) : RSA_new();
+    if (rsa == NULL)
+        goto end;
+
+    if (!BN_set_word(bn, f4)
+        || !RSA_generate_multi_prime_key(rsa, num, primes, 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;
- err:
-    if (bn)
-        BN_free(bn);
-    if (rsa)
-        RSA_free(rsa);
-    if (out)
-        BIO_free_all(out);
-    release_engine(e);
-    if (passout)
-        OPENSSL_free(passout);
+ 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);
-    apps_shutdown();
-    OPENSSL_EXIT(ret);
+    return ret;
 }
 
-static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb)
+static int genrsa_cb(int p, int n, BN_GENCB *cb)
 {
     char c = '*';
 
@@ -329,17 +194,8 @@ static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb)
         c = '*';
     if (p == 3)
         c = '\n';
-    BIO_write(cb->arg, &c, 1);
-    (void)BIO_flush(cb->arg);
-# ifdef LINT
-    p = n;
-# endif
+    BIO_write(BN_GENCB_get_arg(cb), &c, 1);
+    (void)BIO_flush(BN_GENCB_get_arg(cb));
     return 1;
 }
-#else                           /* !OPENSSL_NO_RSA */
-
-# if PEDANTIC
-static void *dummy = &dummy;
-# endif
-
 #endif