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>
15 NON_EMPTY_TRANSLATION_UNIT
24 # include <openssl/bio.h>
25 # include <openssl/err.h>
26 # include <openssl/rsa.h>
27 # include <openssl/evp.h>
28 # include <openssl/x509.h>
29 # include <openssl/pem.h>
30 # include <openssl/bn.h>
32 typedef enum OPTION_choice {
33 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
34 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
35 OPT_PUBIN, OPT_PUBOUT, OPT_PASSOUT, OPT_PASSIN,
36 OPT_RSAPUBKEY_IN, OPT_RSAPUBKEY_OUT,
37 /* Do not change the order here; see case statements below */
38 OPT_PVK_NONE, OPT_PVK_WEAK, OPT_PVK_STRONG,
39 OPT_NOOUT, OPT_TEXT, OPT_MODULUS, OPT_CHECK, OPT_CIPHER,
43 const OPTIONS rsa_options[] = {
44 OPT_SECTION("General"),
45 {"help", OPT_HELP, '-', "Display this summary"},
46 {"check", OPT_CHECK, '-', "Verify key consistency"},
47 {"", OPT_CIPHER, '-', "Any supported cipher"},
48 # ifndef OPENSSL_NO_ENGINE
49 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
53 {"in", OPT_IN, 's', "Input file"},
54 {"inform", OPT_INFORM, 'f', "Input format, one of DER PEM"},
55 {"pubin", OPT_PUBIN, '-', "Expect a public key in input file"},
56 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN, '-', "Input is an RSAPublicKey"},
57 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
59 OPT_SECTION("Output"),
60 {"out", OPT_OUT, '>', "Output file"},
61 {"outform", OPT_OUTFORM, 'f', "Output format, one of DER PEM PVK"},
62 {"pubout", OPT_PUBOUT, '-', "Output a public key"},
63 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT, '-', "Output is an RSAPublicKey"},
64 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
65 {"noout", OPT_NOOUT, '-', "Don't print key out"},
66 {"text", OPT_TEXT, '-', "Print the key in text"},
67 {"modulus", OPT_MODULUS, '-', "Print the RSA key modulus"},
69 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
71 {"pvk-strong", OPT_PVK_STRONG, '-', "Enable 'Strong' PVK encoding level (default)"},
72 {"pvk-weak", OPT_PVK_WEAK, '-', "Enable 'Weak' PVK encoding level"},
73 {"pvk-none", OPT_PVK_NONE, '-', "Don't enforce PVK encoding"},
80 int rsa_main(int argc, char **argv)
85 const EVP_CIPHER *enc = NULL;
86 char *infile = NULL, *outfile = NULL, *prog;
87 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
89 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, check = 0;
90 int noout = 0, modulus = 0, pubin = 0, pubout = 0, ret = 1;
91 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
96 prog = opt_init(argc, argv, rsa_options);
97 while ((o = opt_next()) != OPT_EOF) {
102 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
105 opt_help(rsa_options);
109 if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat))
116 if (!opt_format(opt_arg(), OPT_FMT_ANY, &outformat))
123 passinarg = opt_arg();
126 passoutarg = opt_arg();
129 e = setup_engine(opt_arg(), 0);
137 case OPT_RSAPUBKEY_IN:
140 case OPT_RSAPUBKEY_OUT:
143 case OPT_PVK_STRONG: /* pvk_encr:= 2 */
144 case OPT_PVK_WEAK: /* pvk_encr:= 1 */
145 case OPT_PVK_NONE: /* pvk_encr:= 0 */
146 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
147 pvk_encr = (o - OPT_PVK_NONE);
163 if (!opt_cipher(opt_unknown(), &enc))
167 if (!opt_provider(o))
172 argc = opt_num_rest();
176 private = (text && !pubin) || (!pubout && !noout) ? 1 : 0;
178 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
179 BIO_printf(bio_err, "Error getting passwords\n");
182 if (check && pubin) {
183 BIO_printf(bio_err, "Only private keys can be checked\n");
193 if (informat == FORMAT_PEM)
194 tmpformat = FORMAT_PEMRSA;
195 else if (informat == FORMAT_ASN1)
196 tmpformat = FORMAT_ASN1RSA;
198 tmpformat = informat;
201 pkey = load_pubkey(infile, tmpformat, 1, passin, e, "Public Key");
203 pkey = load_key(infile, informat, 1, passin, e, "Private Key");
207 rsa = EVP_PKEY_get1_RSA(pkey);
212 ERR_print_errors(bio_err);
216 out = bio_open_owner(outfile, outformat, private);
221 assert(pubin || private);
222 if (!RSA_print(out, rsa, 0)) {
224 ERR_print_errors(bio_err);
231 RSA_get0_key(rsa, &n, NULL, NULL);
232 BIO_printf(out, "Modulus=");
234 BIO_printf(out, "\n");
238 int r = RSA_check_key_ex(rsa, NULL);
241 BIO_printf(out, "RSA key ok\n");
245 while ((err = ERR_peek_error()) != 0 &&
246 ERR_GET_LIB(err) == ERR_LIB_RSA &&
247 ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) {
248 BIO_printf(out, "RSA key error: %s\n",
249 ERR_reason_error_string(err));
250 ERR_get_error(); /* remove err from error stack */
252 } else if (r == -1) {
253 ERR_print_errors(bio_err);
262 BIO_printf(bio_err, "writing RSA key\n");
263 if (outformat == FORMAT_ASN1) {
264 if (pubout || pubin) {
266 i = i2d_RSAPublicKey_bio(out, rsa);
268 i = i2d_RSA_PUBKEY_bio(out, rsa);
271 i = i2d_RSAPrivateKey_bio(out, rsa);
273 } else if (outformat == FORMAT_PEM) {
274 if (pubout || pubin) {
276 i = PEM_write_bio_RSAPublicKey(out, rsa);
278 i = PEM_write_bio_RSA_PUBKEY(out, rsa);
281 i = PEM_write_bio_RSAPrivateKey(out, rsa,
282 enc, NULL, 0, NULL, passout);
284 # ifndef OPENSSL_NO_DSA
285 } else if (outformat == FORMAT_MSBLOB || outformat == FORMAT_PVK) {
291 EVP_PKEY_set1_RSA(pk, rsa);
292 if (outformat == FORMAT_PVK) {
294 BIO_printf(bio_err, "PVK form impossible with public key input\n");
299 # ifdef OPENSSL_NO_RC4
300 BIO_printf(bio_err, "PVK format not supported\n");
304 i = i2b_PVK_bio(out, pk, pvk_encr, 0, passout);
306 } else if (pubin || pubout) {
307 i = i2b_PublicKey_bio(out, pk);
310 i = i2b_PrivateKey_bio(out, pk);
315 BIO_printf(bio_err, "bad output format specified for outfile\n");
319 BIO_printf(bio_err, "unable to write key\n");
320 ERR_print_errors(bio_err);
328 OPENSSL_free(passin);
329 OPENSSL_free(passout);