xref: /freebsd/crypto/openssl/apps/rsautl.c (revision e71b70530d95c4f34d8bdbd78d1242df1ba4a945)
16f9291ceSJung-uk Kim /*
2*e71b7053SJung-uk Kim  * Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.
3ddd58736SKris Kennaway  *
4*e71b7053SJung-uk Kim  * Licensed under the OpenSSL license (the "License").  You may not use
5*e71b7053SJung-uk Kim  * this file except in compliance with the License.  You can obtain a copy
6*e71b7053SJung-uk Kim  * in the file LICENSE in the source distribution or at
7*e71b7053SJung-uk Kim  * https://www.openssl.org/source/license.html
8ddd58736SKris Kennaway  */
9de7cdddaSKris Kennaway 
103b4e3dcbSSimon L. B. Nielsen #include <openssl/opensslconf.h>
11*e71b7053SJung-uk Kim #ifdef OPENSSL_NO_RSA
12*e71b7053SJung-uk Kim NON_EMPTY_TRANSLATION_UNIT
13*e71b7053SJung-uk Kim #else
14de7cdddaSKris Kennaway 
15ddd58736SKris Kennaway # include "apps.h"
16*e71b7053SJung-uk Kim # include "progs.h"
17ddd58736SKris Kennaway # include <string.h>
18ddd58736SKris Kennaway # include <openssl/err.h>
19ddd58736SKris Kennaway # include <openssl/pem.h>
203b4e3dcbSSimon L. B. Nielsen # include <openssl/rsa.h>
21ddd58736SKris Kennaway 
22ddd58736SKris Kennaway # define RSA_SIGN        1
23ddd58736SKris Kennaway # define RSA_VERIFY      2
24ddd58736SKris Kennaway # define RSA_ENCRYPT     3
25ddd58736SKris Kennaway # define RSA_DECRYPT     4
26ddd58736SKris Kennaway 
27ddd58736SKris Kennaway # define KEY_PRIVKEY     1
28ddd58736SKris Kennaway # define KEY_PUBKEY      2
29ddd58736SKris Kennaway # define KEY_CERT        3
30ddd58736SKris Kennaway 
31*e71b7053SJung-uk Kim typedef enum OPTION_choice {
32*e71b7053SJung-uk Kim     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
33*e71b7053SJung-uk Kim     OPT_ENGINE, OPT_IN, OPT_OUT, OPT_ASN1PARSE, OPT_HEXDUMP,
34*e71b7053SJung-uk Kim     OPT_RAW, OPT_OAEP, OPT_SSL, OPT_PKCS, OPT_X931,
35*e71b7053SJung-uk Kim     OPT_SIGN, OPT_VERIFY, OPT_REV, OPT_ENCRYPT, OPT_DECRYPT,
36*e71b7053SJung-uk Kim     OPT_PUBIN, OPT_CERTIN, OPT_INKEY, OPT_PASSIN, OPT_KEYFORM,
37*e71b7053SJung-uk Kim     OPT_R_ENUM
38*e71b7053SJung-uk Kim } OPTION_CHOICE;
39ddd58736SKris Kennaway 
40*e71b7053SJung-uk Kim const OPTIONS rsautl_options[] = {
41*e71b7053SJung-uk Kim     {"help", OPT_HELP, '-', "Display this summary"},
42*e71b7053SJung-uk Kim     {"in", OPT_IN, '<', "Input file"},
43*e71b7053SJung-uk Kim     {"out", OPT_OUT, '>', "Output file"},
44*e71b7053SJung-uk Kim     {"inkey", OPT_INKEY, 's', "Input key"},
45*e71b7053SJung-uk Kim     {"keyform", OPT_KEYFORM, 'E', "Private key format - default PEM"},
46*e71b7053SJung-uk Kim     {"pubin", OPT_PUBIN, '-', "Input is an RSA public"},
47*e71b7053SJung-uk Kim     {"certin", OPT_CERTIN, '-', "Input is a cert carrying an RSA public key"},
48*e71b7053SJung-uk Kim     {"ssl", OPT_SSL, '-', "Use SSL v2 padding"},
49*e71b7053SJung-uk Kim     {"raw", OPT_RAW, '-', "Use no padding"},
50*e71b7053SJung-uk Kim     {"pkcs", OPT_PKCS, '-', "Use PKCS#1 v1.5 padding (default)"},
51*e71b7053SJung-uk Kim     {"oaep", OPT_OAEP, '-', "Use PKCS#1 OAEP"},
52*e71b7053SJung-uk Kim     {"sign", OPT_SIGN, '-', "Sign with private key"},
53*e71b7053SJung-uk Kim     {"verify", OPT_VERIFY, '-', "Verify with public key"},
54*e71b7053SJung-uk Kim     {"asn1parse", OPT_ASN1PARSE, '-',
55*e71b7053SJung-uk Kim      "Run output through asn1parse; useful with -verify"},
56*e71b7053SJung-uk Kim     {"hexdump", OPT_HEXDUMP, '-', "Hex dump output"},
57*e71b7053SJung-uk Kim     {"x931", OPT_X931, '-', "Use ANSI X9.31 padding"},
58*e71b7053SJung-uk Kim     {"rev", OPT_REV, '-', "Reverse the order of the input buffer"},
59*e71b7053SJung-uk Kim     {"encrypt", OPT_ENCRYPT, '-', "Encrypt with public key"},
60*e71b7053SJung-uk Kim     {"decrypt", OPT_DECRYPT, '-', "Decrypt with private key"},
61*e71b7053SJung-uk Kim     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
62*e71b7053SJung-uk Kim     OPT_R_OPTIONS,
63*e71b7053SJung-uk Kim # ifndef OPENSSL_NO_ENGINE
64*e71b7053SJung-uk Kim     {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
65*e71b7053SJung-uk Kim # endif
66*e71b7053SJung-uk Kim     {NULL}
67*e71b7053SJung-uk Kim };
68ddd58736SKris Kennaway 
69*e71b7053SJung-uk Kim int rsautl_main(int argc, char **argv)
70ddd58736SKris Kennaway {
71ddd58736SKris Kennaway     BIO *in = NULL, *out = NULL;
72*e71b7053SJung-uk Kim     ENGINE *e = NULL;
73ddd58736SKris Kennaway     EVP_PKEY *pkey = NULL;
74ddd58736SKris Kennaway     RSA *rsa = NULL;
75*e71b7053SJung-uk Kim     X509 *x;
76*e71b7053SJung-uk Kim     char *infile = NULL, *outfile = NULL, *keyfile = NULL;
77*e71b7053SJung-uk Kim     char *passinarg = NULL, *passin = NULL, *prog;
78*e71b7053SJung-uk Kim     char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
79*e71b7053SJung-uk Kim     unsigned char *rsa_in = NULL, *rsa_out = NULL, pad = RSA_PKCS1_PADDING;
80*e71b7053SJung-uk Kim     int rsa_inlen, keyformat = FORMAT_PEM, keysize, ret = 1;
81*e71b7053SJung-uk Kim     int rsa_outlen = 0, hexdump = 0, asn1parse = 0, need_priv = 0, rev = 0;
82*e71b7053SJung-uk Kim     OPTION_CHOICE o;
83ddd58736SKris Kennaway 
84*e71b7053SJung-uk Kim     prog = opt_init(argc, argv, rsautl_options);
85*e71b7053SJung-uk Kim     while ((o = opt_next()) != OPT_EOF) {
86*e71b7053SJung-uk Kim         switch (o) {
87*e71b7053SJung-uk Kim         case OPT_EOF:
88*e71b7053SJung-uk Kim         case OPT_ERR:
89*e71b7053SJung-uk Kim  opthelp:
90*e71b7053SJung-uk Kim             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
915c87c606SMark Murray             goto end;
92*e71b7053SJung-uk Kim         case OPT_HELP:
93*e71b7053SJung-uk Kim             opt_help(rsautl_options);
94*e71b7053SJung-uk Kim             ret = 0;
95*e71b7053SJung-uk Kim             goto end;
96*e71b7053SJung-uk Kim         case OPT_KEYFORM:
97*e71b7053SJung-uk Kim             if (!opt_format(opt_arg(), OPT_FMT_PDE, &keyformat))
98*e71b7053SJung-uk Kim                 goto opthelp;
99*e71b7053SJung-uk Kim             break;
100*e71b7053SJung-uk Kim         case OPT_IN:
101*e71b7053SJung-uk Kim             infile = opt_arg();
102*e71b7053SJung-uk Kim             break;
103*e71b7053SJung-uk Kim         case OPT_OUT:
104*e71b7053SJung-uk Kim             outfile = opt_arg();
105*e71b7053SJung-uk Kim             break;
106*e71b7053SJung-uk Kim         case OPT_ENGINE:
107*e71b7053SJung-uk Kim             e = setup_engine(opt_arg(), 0);
108*e71b7053SJung-uk Kim             break;
109*e71b7053SJung-uk Kim         case OPT_ASN1PARSE:
1106f9291ceSJung-uk Kim             asn1parse = 1;
111*e71b7053SJung-uk Kim             break;
112*e71b7053SJung-uk Kim         case OPT_HEXDUMP:
1136f9291ceSJung-uk Kim             hexdump = 1;
114*e71b7053SJung-uk Kim             break;
115*e71b7053SJung-uk Kim         case OPT_RAW:
1166f9291ceSJung-uk Kim             pad = RSA_NO_PADDING;
117*e71b7053SJung-uk Kim             break;
118*e71b7053SJung-uk Kim         case OPT_OAEP:
1196f9291ceSJung-uk Kim             pad = RSA_PKCS1_OAEP_PADDING;
120*e71b7053SJung-uk Kim             break;
121*e71b7053SJung-uk Kim         case OPT_SSL:
1226f9291ceSJung-uk Kim             pad = RSA_SSLV23_PADDING;
123*e71b7053SJung-uk Kim             break;
124*e71b7053SJung-uk Kim         case OPT_PKCS:
1256f9291ceSJung-uk Kim             pad = RSA_PKCS1_PADDING;
126*e71b7053SJung-uk Kim             break;
127*e71b7053SJung-uk Kim         case OPT_X931:
1286f9291ceSJung-uk Kim             pad = RSA_X931_PADDING;
129*e71b7053SJung-uk Kim             break;
130*e71b7053SJung-uk Kim         case OPT_SIGN:
131ddd58736SKris Kennaway             rsa_mode = RSA_SIGN;
132ddd58736SKris Kennaway             need_priv = 1;
133*e71b7053SJung-uk Kim             break;
134*e71b7053SJung-uk Kim         case OPT_VERIFY:
1356f9291ceSJung-uk Kim             rsa_mode = RSA_VERIFY;
136*e71b7053SJung-uk Kim             break;
137*e71b7053SJung-uk Kim         case OPT_REV:
1386f9291ceSJung-uk Kim             rev = 1;
139*e71b7053SJung-uk Kim             break;
140*e71b7053SJung-uk Kim         case OPT_ENCRYPT:
1416f9291ceSJung-uk Kim             rsa_mode = RSA_ENCRYPT;
142*e71b7053SJung-uk Kim             break;
143*e71b7053SJung-uk Kim         case OPT_DECRYPT:
144ddd58736SKris Kennaway             rsa_mode = RSA_DECRYPT;
145ddd58736SKris Kennaway             need_priv = 1;
146*e71b7053SJung-uk Kim             break;
147*e71b7053SJung-uk Kim         case OPT_PUBIN:
148*e71b7053SJung-uk Kim             key_type = KEY_PUBKEY;
149*e71b7053SJung-uk Kim             break;
150*e71b7053SJung-uk Kim         case OPT_CERTIN:
151*e71b7053SJung-uk Kim             key_type = KEY_CERT;
152*e71b7053SJung-uk Kim             break;
153*e71b7053SJung-uk Kim         case OPT_INKEY:
154*e71b7053SJung-uk Kim             keyfile = opt_arg();
155*e71b7053SJung-uk Kim             break;
156*e71b7053SJung-uk Kim         case OPT_PASSIN:
157*e71b7053SJung-uk Kim             passinarg = opt_arg();
158*e71b7053SJung-uk Kim             break;
159*e71b7053SJung-uk Kim         case OPT_R_CASES:
160*e71b7053SJung-uk Kim             if (!opt_rand(o))
161ddd58736SKris Kennaway                 goto end;
162*e71b7053SJung-uk Kim             break;
163ddd58736SKris Kennaway         }
164ddd58736SKris Kennaway     }
165*e71b7053SJung-uk Kim     argc = opt_num_rest();
166*e71b7053SJung-uk Kim     if (argc != 0)
167*e71b7053SJung-uk Kim         goto opthelp;
168ddd58736SKris Kennaway 
169ddd58736SKris Kennaway     if (need_priv && (key_type != KEY_PRIVKEY)) {
170ddd58736SKris Kennaway         BIO_printf(bio_err, "A private key is needed for this operation\n");
171ddd58736SKris Kennaway         goto end;
172ddd58736SKris Kennaway     }
173*e71b7053SJung-uk Kim 
174*e71b7053SJung-uk Kim     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
175ced566fdSJacques Vidrine         BIO_printf(bio_err, "Error getting password\n");
176ced566fdSJacques Vidrine         goto end;
177ced566fdSJacques Vidrine     }
1785c87c606SMark Murray 
179ddd58736SKris Kennaway     switch (key_type) {
180ddd58736SKris Kennaway     case KEY_PRIVKEY:
181*e71b7053SJung-uk Kim         pkey = load_key(keyfile, keyformat, 0, passin, e, "Private Key");
182ddd58736SKris Kennaway         break;
183ddd58736SKris Kennaway 
184ddd58736SKris Kennaway     case KEY_PUBKEY:
185*e71b7053SJung-uk Kim         pkey = load_pubkey(keyfile, keyformat, 0, NULL, e, "Public Key");
186ddd58736SKris Kennaway         break;
187ddd58736SKris Kennaway 
188ddd58736SKris Kennaway     case KEY_CERT:
189*e71b7053SJung-uk Kim         x = load_cert(keyfile, keyformat, "Certificate");
190ddd58736SKris Kennaway         if (x) {
191ddd58736SKris Kennaway             pkey = X509_get_pubkey(x);
192ddd58736SKris Kennaway             X509_free(x);
193ddd58736SKris Kennaway         }
194ddd58736SKris Kennaway         break;
195ddd58736SKris Kennaway     }
196ddd58736SKris Kennaway 
197*e71b7053SJung-uk Kim     if (pkey == NULL)
198ddd58736SKris Kennaway         return 1;
199ddd58736SKris Kennaway 
200ddd58736SKris Kennaway     rsa = EVP_PKEY_get1_RSA(pkey);
201ddd58736SKris Kennaway     EVP_PKEY_free(pkey);
202ddd58736SKris Kennaway 
203*e71b7053SJung-uk Kim     if (rsa == NULL) {
204ddd58736SKris Kennaway         BIO_printf(bio_err, "Error getting RSA key\n");
205ddd58736SKris Kennaway         ERR_print_errors(bio_err);
206ddd58736SKris Kennaway         goto end;
207ddd58736SKris Kennaway     }
208ddd58736SKris Kennaway 
209*e71b7053SJung-uk Kim     in = bio_open_default(infile, 'r', FORMAT_BINARY);
210*e71b7053SJung-uk Kim     if (in == NULL)
211ddd58736SKris Kennaway         goto end;
212*e71b7053SJung-uk Kim     out = bio_open_default(outfile, 'w', FORMAT_BINARY);
213*e71b7053SJung-uk Kim     if (out == NULL)
214ddd58736SKris Kennaway         goto end;
215ddd58736SKris Kennaway 
216ddd58736SKris Kennaway     keysize = RSA_size(rsa);
217ddd58736SKris Kennaway 
218*e71b7053SJung-uk Kim     rsa_in = app_malloc(keysize * 2, "hold rsa key");
219*e71b7053SJung-uk Kim     rsa_out = app_malloc(keysize, "output rsa key");
220ddd58736SKris Kennaway 
221ddd58736SKris Kennaway     /* Read the input data */
222ddd58736SKris Kennaway     rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
2234c6a0400SJung-uk Kim     if (rsa_inlen < 0) {
224ddd58736SKris Kennaway         BIO_printf(bio_err, "Error reading input Data\n");
225*e71b7053SJung-uk Kim         goto end;
226ddd58736SKris Kennaway     }
227ddd58736SKris Kennaway     if (rev) {
228ddd58736SKris Kennaway         int i;
229ddd58736SKris Kennaway         unsigned char ctmp;
230ddd58736SKris Kennaway         for (i = 0; i < rsa_inlen / 2; i++) {
231ddd58736SKris Kennaway             ctmp = rsa_in[i];
232ddd58736SKris Kennaway             rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
233ddd58736SKris Kennaway             rsa_in[rsa_inlen - 1 - i] = ctmp;
234ddd58736SKris Kennaway         }
235ddd58736SKris Kennaway     }
236ddd58736SKris Kennaway     switch (rsa_mode) {
237ddd58736SKris Kennaway 
238ddd58736SKris Kennaway     case RSA_VERIFY:
239ddd58736SKris Kennaway         rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
240ddd58736SKris Kennaway         break;
241ddd58736SKris Kennaway 
242ddd58736SKris Kennaway     case RSA_SIGN:
2436f9291ceSJung-uk Kim         rsa_outlen =
2446f9291ceSJung-uk Kim             RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
245ddd58736SKris Kennaway         break;
246ddd58736SKris Kennaway 
247ddd58736SKris Kennaway     case RSA_ENCRYPT:
248ddd58736SKris Kennaway         rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
249ddd58736SKris Kennaway         break;
250ddd58736SKris Kennaway 
251ddd58736SKris Kennaway     case RSA_DECRYPT:
2526f9291ceSJung-uk Kim         rsa_outlen =
2536f9291ceSJung-uk Kim             RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
254ddd58736SKris Kennaway         break;
255ddd58736SKris Kennaway     }
256ddd58736SKris Kennaway 
2574c6a0400SJung-uk Kim     if (rsa_outlen < 0) {
258ddd58736SKris Kennaway         BIO_printf(bio_err, "RSA operation error\n");
259ddd58736SKris Kennaway         ERR_print_errors(bio_err);
260ddd58736SKris Kennaway         goto end;
261ddd58736SKris Kennaway     }
262ddd58736SKris Kennaway     ret = 0;
263ddd58736SKris Kennaway     if (asn1parse) {
264ddd58736SKris Kennaway         if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
265ddd58736SKris Kennaway             ERR_print_errors(bio_err);
266ddd58736SKris Kennaway         }
267*e71b7053SJung-uk Kim     } else if (hexdump) {
2686f9291ceSJung-uk Kim         BIO_dump(out, (char *)rsa_out, rsa_outlen);
269*e71b7053SJung-uk Kim     } else {
2706f9291ceSJung-uk Kim         BIO_write(out, rsa_out, rsa_outlen);
271*e71b7053SJung-uk Kim     }
272ddd58736SKris Kennaway  end:
273ddd58736SKris Kennaway     RSA_free(rsa);
2746cf8931aSJung-uk Kim     release_engine(e);
275ddd58736SKris Kennaway     BIO_free(in);
276ddd58736SKris Kennaway     BIO_free_all(out);
2776f9291ceSJung-uk Kim     OPENSSL_free(rsa_in);
2786f9291ceSJung-uk Kim     OPENSSL_free(rsa_out);
2796f9291ceSJung-uk Kim     OPENSSL_free(passin);
280ddd58736SKris Kennaway     return ret;
281ddd58736SKris Kennaway }
282de7cdddaSKris Kennaway #endif
283