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authorWojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>2021-04-30 00:33:56 +0200
committerWojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>2021-04-30 00:33:56 +0200
commitaa4d426b4d3527d7e166df1a05058c9a4a0f6683 (patch)
tree4ff17ce8b89a2321b9d0ed4bcfc37c447bcb6820 /openssl-1.1.0h/apps/genrsa.c
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initial/final commitHEADmaster
Diffstat (limited to 'openssl-1.1.0h/apps/genrsa.c')
-rw-r--r--openssl-1.1.0h/apps/genrsa.c198
1 files changed, 198 insertions, 0 deletions
diff --git a/openssl-1.1.0h/apps/genrsa.c b/openssl-1.1.0h/apps/genrsa.c
new file mode 100644
index 0000000..19bc753
--- /dev/null
+++ b/openssl-1.1.0h/apps/genrsa.c
@@ -0,0 +1,198 @@
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * 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>
+#ifdef OPENSSL_NO_RSA
+NON_EMPTY_TRANSLATION_UNIT
+#else
+
+# 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_RAND, OPT_PASSOUT, OPT_CIPHER
+} OPTION_CHOICE;
+
+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"},
+ {"rand", OPT_RAND, 's',
+ "Load the file(s) into the random number generator"},
+ {"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 *inrand = NULL, *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_RAND:
+ inrand = opt_arg();
+ 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;
+
+ if (!app_RAND_load_file(NULL, 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);
+ 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;
+
+ app_RAND_write_file(NULL);
+
+ 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