2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* We need to use the deprecated RSA low level calls */
11 #define OPENSSL_SUPPRESS_DEPRECATED
13 #include <openssl/opensslconf.h>
21 #include <openssl/bio.h>
22 #include <openssl/err.h>
23 #include <openssl/rsa.h>
24 #include <openssl/evp.h>
25 #include <openssl/x509.h>
26 #include <openssl/pem.h>
27 #include <openssl/bn.h>
29 typedef enum OPTION_choice {
30 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
31 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
32 OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
33 OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
34 /* Do not change the order here; see case statements below */
35 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
36 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
40 const OPTIONS rsa_options[] = {
41 OPT_SECTION("General"),
42 {"help", OPT_HELP, '-', "Display this summary"},
43 {"check", OPT_CHECK, '-', "Verify key consistency"},
44 {"", OPT_CIPHER, '-', "Any supported cipher"},
45 #ifndef OPENSSL_NO_ENGINE
46 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
50 {"in", OPT_IN, 's', "Input file"},
51 {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"},
52 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
53 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
54 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
56 OPT_SECTION("Output"),
57 {"out", OPT_OUT, '>', "Output file"},
58 {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
59 {"pubout", OPT_PUBOUT, '-', "Output a public key"},
60 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
61 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
62 {"noout", OPT_NOOUT, '-', "Don't print key out"},
63 {"text", OPT_TEXT, '-', "Print the key in text"},
64 {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
66 #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
68 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
69 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
70 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
77 int rsa_main(int argc, char **argv)
82 const EVP_CIPHER *enc = NULL;
83 char *infile = NULL, *outfile = NULL, *prog;
84 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
86 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
87 int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
88 #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
93 prog = opt_init(argc, argv, rsa_options);
94 while ((o = opt_next()) != OPT_EOF) {
99 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
102 opt_help(rsa_options);
106 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
113 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
120 passinarg = opt_arg();
123 passoutarg = opt_arg();
126 e = setup_engine(opt_arg(), 0);
134 case OPT_RSAPUBKEY_IN:
137 case OPT_RSAPUBKEY_OUT:
140 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
141 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
142 case OPT_PVK_NONE: /* pvk_encr:= 0 */
143 #if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
144 pvk_encr = (o - OPT_PVK_NONE);
160 if (!opt_cipher(opt_unknown(), &enc))
164 if (!opt_provider(o))
169 argc = opt_num_rest();
173 private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
175 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
176 BIO_printf(bio_err, "Error getting passwords\n");
179 if (check && pubin) {
180 BIO_printf(bio_err, "Only private keys can be checked\n");
190 if (informat == FORMAT_PEM)
191 tmpformat = FORMAT_PEMRSA;
192 else if (informat == FORMAT_ASN1)
193 tmpformat = FORMAT_ASN1RSA;
195 tmpformat = informat;
198 pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
200 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
204 rsa = EVP_PKEY_get1_RSA(pkey);
209 ERR_print_errors(bio_err);
213 out = bio_open_owner(outfile, outformat, private);
218 assert(pubin || private);
219 if (!RSA_print(out, rsa, 0)) {
221 ERR_print_errors(bio_err);
228 RSA_get0_key(rsa, &n, NULL, NULL);
229 BIO_printf(out, "Modulus=");
231 BIO_printf(out, "\n");
235 int r = RSA_check_key_ex(rsa, NULL);
238 BIO_printf(out, "RSA key ok\n");
242 while ((err = ERR_peek_error()) != 0 &&
243 ERR_GET_LIB(err) == ERR_LIB_RSA &&
244 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
245 BIO_printf(out, "RSA key error: %s\n",
246 ERR_reason_error_string(err));
247 ERR_get_error(); /* remove err from error stack */
249 } else if (r == -1) {
250 ERR_print_errors(bio_err);
259 BIO_printf(bio_err, "writing RSA key\n");
260 if (outformat == FORMAT_ASN1) {
261 if (pubout || pubin) {
263 i = i2d_RSAPublicKey_bio(out, rsa);
265 i = i2d_RSA_PUBKEY_bio(out, rsa);
268 i = i2d_RSAPrivateKey_bio(out, rsa);
270 } else if (outformat == FORMAT_PEM) {
271 if (pubout || pubin) {
273 i = PEM_write_bio_RSAPublicKey(out, rsa);
275 i = PEM_write_bio_RSA_PUBKEY(out, rsa);
278 i = PEM_write_bio_RSAPrivateKey(out, rsa,
279 enc, NULL, 0, NULL, passout);
281 #ifndef OPENSSL_NO_DSA
282 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
288 EVP_PKEY_set1_RSA(pk, rsa);
289 if (outformat == FORMAT_PVK) {
291 BIO_printf(bio_err, "PVK form impossible with public key input\n");
296 # ifdef OPENSSL_NO_RC4
297 BIO_printf(bio_err, "PVK format not supported\n");
301 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
303 } else if (pubin || pubout) {
304 i = i2b_PublicKey_bio(out, pk);
307 i = i2b_PrivateKey_bio(out, pk);
312 BIO_printf(bio_err, "bad output format specified for outfile\n");
316 BIO_printf(bio_err, "unable to write key\n");
317 ERR_print_errors(bio_err);
325 OPENSSL_free(passin);
326 OPENSSL_free(passout);