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 #include <openssl/opensslconf.h>
12 NON_EMPTY_TRANSLATION_UNIT
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
39 const OPTIONS rsa_options
[] = {
40 OPT_SECTION("General"),
41 {"help", OPT_HELP
, '-', "Display this summary"},
42 {"check", OPT_CHECK
, '-', "Verify key consistency"},
43 {"", OPT_CIPHER
, '-', "Any supported cipher"},
44 # ifndef OPENSSL_NO_ENGINE
45 {"engine", OPT_ENGINE
, 's', "Use engine, possibly a hardware device"},
49 {"in", OPT_IN
, 's', "Input file"},
50 {"inform", OPT_INFORM
, 'f', "Input format, one of DER PEM"},
51 {"pubin", OPT_PUBIN
, '-', "Expect a public key in input file"},
52 {"RSAPublicKey_in", OPT_RSAPUBKEY_IN
, '-', "Input is an RSAPublicKey"},
53 {"passin", OPT_PASSIN
, 's', "Input file pass phrase source"},
55 OPT_SECTION("Output"),
56 {"out", OPT_OUT
, '>', "Output file"},
57 {"outform", OPT_OUTFORM
, 'f', "Output format, one of DER PEM PVK"},
58 {"pubout", OPT_PUBOUT
, '-', "Output a public key"},
59 {"RSAPublicKey_out", OPT_RSAPUBKEY_OUT
, '-', "Output is an RSAPublicKey"},
60 {"passout", OPT_PASSOUT
, 's', "Output file pass phrase source"},
61 {"noout", OPT_NOOUT
, '-', "Don't print key out"},
62 {"text", OPT_TEXT
, '-', "Print the key in text"},
63 {"modulus", OPT_MODULUS
, '-', "Print the RSA key modulus"},
65 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
67 {"pvk-strong", OPT_PVK_STRONG
, '-', "Enable 'Strong' PVK encoding level (default)"},
68 {"pvk-weak", OPT_PVK_WEAK
, '-', "Enable 'Weak' PVK encoding level"},
69 {"pvk-none", OPT_PVK_NONE
, '-', "Don't enforce PVK encoding"},
74 int rsa_main(int argc
, char **argv
)
79 const EVP_CIPHER
*enc
= NULL
;
80 char *infile
= NULL
, *outfile
= NULL
, *prog
;
81 char *passin
= NULL
, *passout
= NULL
, *passinarg
= NULL
, *passoutarg
= NULL
;
83 int informat
= FORMAT_PEM
, outformat
= FORMAT_PEM
, text
= 0, check
= 0;
84 int noout
= 0, modulus
= 0, pubin
= 0, pubout
= 0, ret
= 1;
85 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
90 prog
= opt_init(argc
, argv
, rsa_options
);
91 while ((o
= opt_next()) != OPT_EOF
) {
96 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
99 opt_help(rsa_options
);
103 if (!opt_format(opt_arg(), OPT_FMT_ANY
, &informat
))
110 if (!opt_format(opt_arg(), OPT_FMT_ANY
, &outformat
))
117 passinarg
= opt_arg();
120 passoutarg
= opt_arg();
123 e
= setup_engine(opt_arg(), 0);
131 case OPT_RSAPUBKEY_IN
:
134 case OPT_RSAPUBKEY_OUT
:
137 case OPT_PVK_STRONG
: /* pvk_encr:= 2 */
138 case OPT_PVK_WEAK
: /* pvk_encr:= 1 */
139 case OPT_PVK_NONE
: /* pvk_encr:= 0 */
140 # if !defined(OPENSSL_NO_DSA) && !defined(OPENSSL_NO_RC4)
141 pvk_encr
= (o
- OPT_PVK_NONE
);
157 if (!opt_cipher(opt_unknown(), &enc
))
162 argc
= opt_num_rest();
166 private = (text
&& !pubin
) || (!pubout
&& !noout
) ? 1 : 0;
168 if (!app_passwd(passinarg
, passoutarg
, &passin
, &passout
)) {
169 BIO_printf(bio_err
, "Error getting passwords\n");
172 if (check
&& pubin
) {
173 BIO_printf(bio_err
, "Only private keys can be checked\n");
183 if (informat
== FORMAT_PEM
)
184 tmpformat
= FORMAT_PEMRSA
;
185 else if (informat
== FORMAT_ASN1
)
186 tmpformat
= FORMAT_ASN1RSA
;
188 tmpformat
= informat
;
191 pkey
= load_pubkey(infile
, tmpformat
, 1, passin
, e
, "Public Key");
193 pkey
= load_key(infile
, informat
, 1, passin
, e
, "Private Key");
197 rsa
= EVP_PKEY_get1_RSA(pkey
);
202 ERR_print_errors(bio_err
);
206 out
= bio_open_owner(outfile
, outformat
, private);
211 assert(pubin
|| private);
212 if (!RSA_print(out
, rsa
, 0)) {
214 ERR_print_errors(bio_err
);
221 RSA_get0_key(rsa
, &n
, NULL
, NULL
);
222 BIO_printf(out
, "Modulus=");
224 BIO_printf(out
, "\n");
228 int r
= RSA_check_key_ex(rsa
, NULL
);
231 BIO_printf(out
, "RSA key ok\n");
235 while ((err
= ERR_peek_error()) != 0 &&
236 ERR_GET_LIB(err
) == ERR_LIB_RSA
&&
237 ERR_GET_REASON(err
) != ERR_R_MALLOC_FAILURE
) {
238 BIO_printf(out
, "RSA key error: %s\n",
239 ERR_reason_error_string(err
));
240 ERR_get_error(); /* remove err from error stack */
242 } else if (r
== -1) {
243 ERR_print_errors(bio_err
);
252 BIO_printf(bio_err
, "writing RSA key\n");
253 if (outformat
== FORMAT_ASN1
) {
254 if (pubout
|| pubin
) {
256 i
= i2d_RSAPublicKey_bio(out
, rsa
);
258 i
= i2d_RSA_PUBKEY_bio(out
, rsa
);
261 i
= i2d_RSAPrivateKey_bio(out
, rsa
);
263 } else if (outformat
== FORMAT_PEM
) {
264 if (pubout
|| pubin
) {
266 i
= PEM_write_bio_RSAPublicKey(out
, rsa
);
268 i
= PEM_write_bio_RSA_PUBKEY(out
, rsa
);
271 i
= PEM_write_bio_RSAPrivateKey(out
, rsa
,
272 enc
, NULL
, 0, NULL
, passout
);
274 # ifndef OPENSSL_NO_DSA
275 } else if (outformat
== FORMAT_MSBLOB
|| outformat
== FORMAT_PVK
) {
281 EVP_PKEY_set1_RSA(pk
, rsa
);
282 if (outformat
== FORMAT_PVK
) {
284 BIO_printf(bio_err
, "PVK form impossible with public key input\n");
289 # ifdef OPENSSL_NO_RC4
290 BIO_printf(bio_err
, "PVK format not supported\n");
294 i
= i2b_PVK_bio(out
, pk
, pvk_encr
, 0, passout
);
296 } else if (pubin
|| pubout
) {
297 i
= i2b_PublicKey_bio(out
, pk
);
300 i
= i2b_PrivateKey_bio(out
, pk
);
305 BIO_printf(bio_err
, "bad output format specified for outfile\n");
309 BIO_printf(bio_err
, "unable to write key\n");
310 ERR_print_errors(bio_err
);
318 OPENSSL_free(passin
);
319 OPENSSL_free(passout
);