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1 | /* | |
2 | * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the OpenSSL license (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 | |
8 | */ | |
9 | ||
10 | #include <stdio.h> | |
11 | #include <string.h> | |
12 | #include "apps.h" | |
13 | #include <openssl/pem.h> | |
14 | #include <openssl/err.h> | |
15 | #include <openssl/evp.h> | |
16 | ||
17 | typedef enum OPTION_choice { | |
18 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
19 | OPT_INFORM, OPT_OUTFORM, OPT_PASSIN, OPT_PASSOUT, OPT_ENGINE, | |
20 | OPT_IN, OPT_OUT, OPT_PUBIN, OPT_PUBOUT, OPT_TEXT_PUB, | |
21 | OPT_TEXT, OPT_NOOUT, OPT_MD, OPT_TRADITIONAL | |
22 | } OPTION_CHOICE; | |
23 | ||
24 | const OPTIONS pkey_options[] = { | |
25 | {"help", OPT_HELP, '-', "Display this summary"}, | |
26 | {"inform", OPT_INFORM, 'f', "Input format (DER or PEM)"}, | |
27 | {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"}, | |
28 | {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, | |
29 | {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, | |
30 | {"in", OPT_IN, 's', "Input key"}, | |
31 | {"out", OPT_OUT, '>', "Output file"}, | |
32 | {"pubin", OPT_PUBIN, '-', | |
33 | "Read public key from input (default is private key)"}, | |
34 | {"pubout", OPT_PUBOUT, '-', "Output public key, not private"}, | |
35 | {"text_pub", OPT_TEXT_PUB, '-', "Only output public key components"}, | |
36 | {"text", OPT_TEXT, '-', "Output in plaintext as well"}, | |
37 | {"noout", OPT_NOOUT, '-', "Don't output the key"}, | |
38 | {"", OPT_MD, '-', "Any supported cipher"}, | |
39 | {"traditional", OPT_TRADITIONAL, '-', | |
40 | "Use traditional format for private keys"}, | |
41 | #ifndef OPENSSL_NO_ENGINE | |
42 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
43 | #endif | |
44 | {NULL} | |
45 | }; | |
46 | ||
47 | int pkey_main(int argc, char **argv) | |
48 | { | |
49 | BIO *in = NULL, *out = NULL; | |
50 | ENGINE *e = NULL; | |
51 | EVP_PKEY *pkey = NULL; | |
52 | const EVP_CIPHER *cipher = NULL; | |
53 | char *infile = NULL, *outfile = NULL, *passin = NULL, *passout = NULL; | |
54 | char *passinarg = NULL, *passoutarg = NULL, *prog; | |
55 | OPTION_CHOICE o; | |
56 | int informat = FORMAT_PEM, outformat = FORMAT_PEM; | |
57 | int pubin = 0, pubout = 0, pubtext = 0, text = 0, noout = 0, ret = 1; | |
58 | int private = 0, traditional = 0; | |
59 | ||
60 | prog = opt_init(argc, argv, pkey_options); | |
61 | while ((o = opt_next()) != OPT_EOF) { | |
62 | switch (o) { | |
63 | case OPT_EOF: | |
64 | case OPT_ERR: | |
65 | opthelp: | |
66 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
67 | goto end; | |
68 | case OPT_HELP: | |
69 | opt_help(pkey_options); | |
70 | ret = 0; | |
71 | goto end; | |
72 | case OPT_INFORM: | |
73 | if (!opt_format(opt_arg(), OPT_FMT_ANY, &informat)) | |
74 | goto opthelp; | |
75 | break; | |
76 | case OPT_OUTFORM: | |
77 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) | |
78 | goto opthelp; | |
79 | break; | |
80 | case OPT_PASSIN: | |
81 | passinarg = opt_arg(); | |
82 | break; | |
83 | case OPT_PASSOUT: | |
84 | passoutarg = opt_arg(); | |
85 | break; | |
86 | case OPT_ENGINE: | |
87 | e = setup_engine(opt_arg(), 0); | |
88 | break; | |
89 | case OPT_IN: | |
90 | infile = opt_arg(); | |
91 | break; | |
92 | case OPT_OUT: | |
93 | outfile = opt_arg(); | |
94 | break; | |
95 | case OPT_PUBIN: | |
96 | pubin = pubout = pubtext = 1; | |
97 | break; | |
98 | case OPT_PUBOUT: | |
99 | pubout = 1; | |
100 | break; | |
101 | case OPT_TEXT_PUB: | |
102 | pubtext = text = 1; | |
103 | break; | |
104 | case OPT_TEXT: | |
105 | text = 1; | |
106 | break; | |
107 | case OPT_NOOUT: | |
108 | noout = 1; | |
109 | break; | |
110 | case OPT_TRADITIONAL: | |
111 | traditional = 1; | |
112 | break; | |
113 | case OPT_MD: | |
114 | if (!opt_cipher(opt_unknown(), &cipher)) | |
115 | goto opthelp; | |
116 | } | |
117 | } | |
118 | argc = opt_num_rest(); | |
119 | if (argc != 0) | |
120 | goto opthelp; | |
121 | ||
122 | private = !noout && !pubout ? 1 : 0; | |
123 | if (text && !pubtext) | |
124 | private = 1; | |
125 | ||
126 | if (!app_passwd(passinarg, passoutarg, &passin, &passout)) { | |
127 | BIO_printf(bio_err, "Error getting passwords\n"); | |
128 | goto end; | |
129 | } | |
130 | ||
131 | out = bio_open_owner(outfile, outformat, private); | |
132 | if (out == NULL) | |
133 | goto end; | |
134 | ||
135 | if (pubin) | |
136 | pkey = load_pubkey(infile, informat, 1, passin, e, "Public Key"); | |
137 | else | |
138 | pkey = load_key(infile, informat, 1, passin, e, "key"); | |
139 | if (!pkey) | |
140 | goto end; | |
141 | ||
142 | if (!noout) { | |
143 | if (outformat == FORMAT_PEM) { | |
144 | if (pubout) | |
145 | PEM_write_bio_PUBKEY(out, pkey); | |
146 | else { | |
147 | assert(private); | |
148 | if (traditional) | |
149 | PEM_write_bio_PrivateKey_traditional(out, pkey, cipher, | |
150 | NULL, 0, NULL, | |
151 | passout); | |
152 | else | |
153 | PEM_write_bio_PrivateKey(out, pkey, cipher, | |
154 | NULL, 0, NULL, passout); | |
155 | } | |
156 | } else if (outformat == FORMAT_ASN1) { | |
157 | if (pubout) | |
158 | i2d_PUBKEY_bio(out, pkey); | |
159 | else { | |
160 | assert(private); | |
161 | i2d_PrivateKey_bio(out, pkey); | |
162 | } | |
163 | } else { | |
164 | BIO_printf(bio_err, "Bad format specified for key\n"); | |
165 | goto end; | |
166 | } | |
167 | ||
168 | } | |
169 | ||
170 | if (text) { | |
171 | if (pubtext) | |
172 | EVP_PKEY_print_public(out, pkey, 0, NULL); | |
173 | else { | |
174 | assert(private); | |
175 | EVP_PKEY_print_private(out, pkey, 0, NULL); | |
176 | } | |
177 | } | |
178 | ||
179 | ret = 0; | |
180 | ||
181 | end: | |
182 | EVP_PKEY_free(pkey); | |
183 | release_engine(e); | |
184 | BIO_free_all(out); | |
185 | BIO_free(in); | |
186 | OPENSSL_free(passin); | |
187 | OPENSSL_free(passout); | |
188 | ||
189 | return ret; | |
190 | } |