1 | #include <machine/rtems-bsd-user-space.h> |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
---|
5 | * |
---|
6 | * Licensed under the OpenSSL license (the "License"). You may not use |
---|
7 | * this file except in compliance with the License. You can obtain a copy |
---|
8 | * in the file LICENSE in the source distribution or at |
---|
9 | * https://www.openssl.org/source/license.html |
---|
10 | */ |
---|
11 | |
---|
12 | #include <openssl/opensslconf.h> |
---|
13 | #ifdef OPENSSL_NO_RSA |
---|
14 | NON_EMPTY_TRANSLATION_UNIT |
---|
15 | #else |
---|
16 | |
---|
17 | # include <stdio.h> |
---|
18 | # include <string.h> |
---|
19 | # include <sys/types.h> |
---|
20 | # include <sys/stat.h> |
---|
21 | # include "apps.h" |
---|
22 | # include "progs.h" |
---|
23 | # include <openssl/bio.h> |
---|
24 | # include <openssl/err.h> |
---|
25 | # include <openssl/bn.h> |
---|
26 | # include <openssl/rsa.h> |
---|
27 | # include <openssl/evp.h> |
---|
28 | # include <openssl/x509.h> |
---|
29 | # include <openssl/pem.h> |
---|
30 | # include <openssl/rand.h> |
---|
31 | |
---|
32 | # define DEFBITS 2048 |
---|
33 | # define DEFPRIMES 2 |
---|
34 | |
---|
35 | static int genrsa_cb(int p, int n, BN_GENCB *cb); |
---|
36 | |
---|
37 | typedef enum OPTION_choice { |
---|
38 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
---|
39 | OPT_3, OPT_F4, OPT_ENGINE, |
---|
40 | OPT_OUT, OPT_PASSOUT, OPT_CIPHER, OPT_PRIMES, |
---|
41 | OPT_R_ENUM |
---|
42 | } OPTION_CHOICE; |
---|
43 | |
---|
44 | const OPTIONS genrsa_options[] = { |
---|
45 | {"help", OPT_HELP, '-', "Display this summary"}, |
---|
46 | {"3", OPT_3, '-', "Use 3 for the E value"}, |
---|
47 | {"F4", OPT_F4, '-', "Use F4 (0x10001) for the E value"}, |
---|
48 | {"f4", OPT_F4, '-', "Use F4 (0x10001) for the E value"}, |
---|
49 | {"out", OPT_OUT, '>', "Output the key to specified file"}, |
---|
50 | OPT_R_OPTIONS, |
---|
51 | {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"}, |
---|
52 | {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"}, |
---|
53 | # ifndef OPENSSL_NO_ENGINE |
---|
54 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
---|
55 | # endif |
---|
56 | {"primes", OPT_PRIMES, 'p', "Specify number of primes"}, |
---|
57 | {NULL} |
---|
58 | }; |
---|
59 | |
---|
60 | int genrsa_main(int argc, char **argv) |
---|
61 | { |
---|
62 | BN_GENCB *cb = BN_GENCB_new(); |
---|
63 | PW_CB_DATA cb_data; |
---|
64 | ENGINE *eng = NULL; |
---|
65 | BIGNUM *bn = BN_new(); |
---|
66 | BIO *out = NULL; |
---|
67 | const BIGNUM *e; |
---|
68 | RSA *rsa = NULL; |
---|
69 | const EVP_CIPHER *enc = NULL; |
---|
70 | int ret = 1, num = DEFBITS, private = 0, primes = DEFPRIMES; |
---|
71 | unsigned long f4 = RSA_F4; |
---|
72 | char *outfile = NULL, *passoutarg = NULL, *passout = NULL; |
---|
73 | char *prog, *hexe, *dece; |
---|
74 | OPTION_CHOICE o; |
---|
75 | |
---|
76 | if (bn == NULL || cb == NULL) |
---|
77 | goto end; |
---|
78 | |
---|
79 | BN_GENCB_set(cb, genrsa_cb, bio_err); |
---|
80 | |
---|
81 | prog = opt_init(argc, argv, genrsa_options); |
---|
82 | while ((o = opt_next()) != OPT_EOF) { |
---|
83 | switch (o) { |
---|
84 | case OPT_EOF: |
---|
85 | case OPT_ERR: |
---|
86 | opthelp: |
---|
87 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
---|
88 | goto end; |
---|
89 | case OPT_HELP: |
---|
90 | ret = 0; |
---|
91 | opt_help(genrsa_options); |
---|
92 | goto end; |
---|
93 | case OPT_3: |
---|
94 | f4 = 3; |
---|
95 | break; |
---|
96 | case OPT_F4: |
---|
97 | f4 = RSA_F4; |
---|
98 | break; |
---|
99 | case OPT_OUT: |
---|
100 | outfile = opt_arg(); |
---|
101 | break; |
---|
102 | case OPT_ENGINE: |
---|
103 | eng = setup_engine(opt_arg(), 0); |
---|
104 | break; |
---|
105 | case OPT_R_CASES: |
---|
106 | if (!opt_rand(o)) |
---|
107 | goto end; |
---|
108 | break; |
---|
109 | case OPT_PASSOUT: |
---|
110 | passoutarg = opt_arg(); |
---|
111 | break; |
---|
112 | case OPT_CIPHER: |
---|
113 | if (!opt_cipher(opt_unknown(), &enc)) |
---|
114 | goto end; |
---|
115 | break; |
---|
116 | case OPT_PRIMES: |
---|
117 | if (!opt_int(opt_arg(), &primes)) |
---|
118 | goto end; |
---|
119 | break; |
---|
120 | } |
---|
121 | } |
---|
122 | argc = opt_num_rest(); |
---|
123 | argv = opt_rest(); |
---|
124 | |
---|
125 | if (argc == 1) { |
---|
126 | if (!opt_int(argv[0], &num) || num <= 0) |
---|
127 | goto end; |
---|
128 | if (num > OPENSSL_RSA_MAX_MODULUS_BITS) |
---|
129 | BIO_printf(bio_err, |
---|
130 | "Warning: It is not recommended to use more than %d bit for RSA keys.\n" |
---|
131 | " Your key size is %d! Larger key size may behave not as expected.\n", |
---|
132 | OPENSSL_RSA_MAX_MODULUS_BITS, num); |
---|
133 | } else if (argc > 0) { |
---|
134 | BIO_printf(bio_err, "Extra arguments given.\n"); |
---|
135 | goto opthelp; |
---|
136 | } |
---|
137 | |
---|
138 | private = 1; |
---|
139 | if (!app_passwd(NULL, passoutarg, NULL, &passout)) { |
---|
140 | BIO_printf(bio_err, "Error getting password\n"); |
---|
141 | goto end; |
---|
142 | } |
---|
143 | |
---|
144 | out = bio_open_owner(outfile, FORMAT_PEM, private); |
---|
145 | if (out == NULL) |
---|
146 | goto end; |
---|
147 | |
---|
148 | BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus (%d primes)\n", |
---|
149 | num, primes); |
---|
150 | rsa = eng ? RSA_new_method(eng) : RSA_new(); |
---|
151 | if (rsa == NULL) |
---|
152 | goto end; |
---|
153 | |
---|
154 | if (!BN_set_word(bn, f4) |
---|
155 | || !RSA_generate_multi_prime_key(rsa, num, primes, bn, cb)) |
---|
156 | goto end; |
---|
157 | |
---|
158 | RSA_get0_key(rsa, NULL, &e, NULL); |
---|
159 | hexe = BN_bn2hex(e); |
---|
160 | dece = BN_bn2dec(e); |
---|
161 | if (hexe && dece) { |
---|
162 | BIO_printf(bio_err, "e is %s (0x%s)\n", dece, hexe); |
---|
163 | } |
---|
164 | OPENSSL_free(hexe); |
---|
165 | OPENSSL_free(dece); |
---|
166 | cb_data.password = passout; |
---|
167 | cb_data.prompt_info = outfile; |
---|
168 | assert(private); |
---|
169 | if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0, |
---|
170 | (pem_password_cb *)password_callback, |
---|
171 | &cb_data)) |
---|
172 | goto end; |
---|
173 | |
---|
174 | ret = 0; |
---|
175 | end: |
---|
176 | BN_free(bn); |
---|
177 | BN_GENCB_free(cb); |
---|
178 | RSA_free(rsa); |
---|
179 | BIO_free_all(out); |
---|
180 | release_engine(eng); |
---|
181 | OPENSSL_free(passout); |
---|
182 | if (ret != 0) |
---|
183 | ERR_print_errors(bio_err); |
---|
184 | return ret; |
---|
185 | } |
---|
186 | |
---|
187 | static int genrsa_cb(int p, int n, BN_GENCB *cb) |
---|
188 | { |
---|
189 | char c = '*'; |
---|
190 | |
---|
191 | if (p == 0) |
---|
192 | c = '.'; |
---|
193 | if (p == 1) |
---|
194 | c = '+'; |
---|
195 | if (p == 2) |
---|
196 | c = '*'; |
---|
197 | if (p == 3) |
---|
198 | c = '\n'; |
---|
199 | BIO_write(BN_GENCB_get_arg(cb), &c, 1); |
---|
200 | (void)BIO_flush(BN_GENCB_get_arg(cb)); |
---|
201 | return 1; |
---|
202 | } |
---|
203 | #endif |
---|