Annotation of src/usr.bin/openssl/rsautl.c, Revision 1.2
1.2 ! jsing 1: /* $OpenBSD: rsautl.c,v 1.1 2014/08/26 17:47:25 jsing Exp $ */
1.1 jsing 2: /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3: * project 2000.
4: */
5: /* ====================================================================
6: * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: *
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: *
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in
17: * the documentation and/or other materials provided with the
18: * distribution.
19: *
20: * 3. All advertising materials mentioning features or use of this
21: * software must display the following acknowledgment:
22: * "This product includes software developed by the OpenSSL Project
23: * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24: *
25: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26: * endorse or promote products derived from this software without
27: * prior written permission. For written permission, please contact
28: * licensing@OpenSSL.org.
29: *
30: * 5. Products derived from this software may not be called "OpenSSL"
31: * nor may "OpenSSL" appear in their names without prior written
32: * permission of the OpenSSL Project.
33: *
34: * 6. Redistributions of any form whatsoever must retain the following
35: * acknowledgment:
36: * "This product includes software developed by the OpenSSL Project
37: * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38: *
39: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50: * OF THE POSSIBILITY OF SUCH DAMAGE.
51: * ====================================================================
52: *
53: * This product includes cryptographic software written by Eric Young
54: * (eay@cryptsoft.com). This product includes software written by Tim
55: * Hudson (tjh@cryptsoft.com).
56: *
57: */
58:
59: #include <openssl/opensslconf.h>
60:
61:
62: #include <string.h>
63:
64: #include "apps.h"
65:
66: #include <openssl/err.h>
67: #include <openssl/pem.h>
68: #include <openssl/rsa.h>
69:
70: #define RSA_SIGN 1
71: #define RSA_VERIFY 2
72: #define RSA_ENCRYPT 3
73: #define RSA_DECRYPT 4
74:
75: #define KEY_PRIVKEY 1
76: #define KEY_PUBKEY 2
77: #define KEY_CERT 3
78:
79: static void usage(void);
80:
81: int rsautl_main(int argc, char **);
82:
83: int
84: rsautl_main(int argc, char **argv)
85: {
86: ENGINE *e = NULL;
87: BIO *in = NULL, *out = NULL;
88: char *infile = NULL, *outfile = NULL;
89: #ifndef OPENSSL_NO_ENGINE
90: char *engine = NULL;
91: #endif
92: char *keyfile = NULL;
93: char rsa_mode = RSA_VERIFY, key_type = KEY_PRIVKEY;
94: int keyform = FORMAT_PEM;
95: char need_priv = 0, badarg = 0, rev = 0;
96: char hexdump = 0, asn1parse = 0;
97: X509 *x;
98: EVP_PKEY *pkey = NULL;
99: RSA *rsa = NULL;
100: unsigned char *rsa_in = NULL, *rsa_out = NULL, pad;
101: char *passargin = NULL, *passin = NULL;
102: int rsa_inlen, rsa_outlen = 0;
103: int keysize;
104:
105: int ret = 1;
106:
107: argc--;
108: argv++;
109:
110: OpenSSL_add_all_algorithms();
111: pad = RSA_PKCS1_PADDING;
112:
113: while (argc >= 1) {
114: if (!strcmp(*argv, "-in")) {
115: if (--argc < 1)
116: badarg = 1;
117: else
118: infile = *(++argv);
119: } else if (!strcmp(*argv, "-out")) {
120: if (--argc < 1)
121: badarg = 1;
122: else
123: outfile = *(++argv);
124: } else if (!strcmp(*argv, "-inkey")) {
125: if (--argc < 1)
126: badarg = 1;
127: else
128: keyfile = *(++argv);
129: } else if (!strcmp(*argv, "-passin")) {
130: if (--argc < 1)
131: badarg = 1;
132: else
133: passargin = *(++argv);
134: } else if (strcmp(*argv, "-keyform") == 0) {
135: if (--argc < 1)
136: badarg = 1;
137: else
138: keyform = str2fmt(*(++argv));
139: #ifndef OPENSSL_NO_ENGINE
140: } else if (!strcmp(*argv, "-engine")) {
141: if (--argc < 1)
142: badarg = 1;
143: else
144: engine = *(++argv);
145: #endif
146: } else if (!strcmp(*argv, "-pubin")) {
147: key_type = KEY_PUBKEY;
148: } else if (!strcmp(*argv, "-certin")) {
149: key_type = KEY_CERT;
150: } else if (!strcmp(*argv, "-asn1parse"))
151: asn1parse = 1;
152: else if (!strcmp(*argv, "-hexdump"))
153: hexdump = 1;
154: else if (!strcmp(*argv, "-raw"))
155: pad = RSA_NO_PADDING;
156: else if (!strcmp(*argv, "-oaep"))
157: pad = RSA_PKCS1_OAEP_PADDING;
158: else if (!strcmp(*argv, "-ssl"))
159: pad = RSA_SSLV23_PADDING;
160: else if (!strcmp(*argv, "-pkcs"))
161: pad = RSA_PKCS1_PADDING;
162: else if (!strcmp(*argv, "-x931"))
163: pad = RSA_X931_PADDING;
164: else if (!strcmp(*argv, "-sign")) {
165: rsa_mode = RSA_SIGN;
166: need_priv = 1;
167: } else if (!strcmp(*argv, "-verify"))
168: rsa_mode = RSA_VERIFY;
169: else if (!strcmp(*argv, "-rev"))
170: rev = 1;
171: else if (!strcmp(*argv, "-encrypt"))
172: rsa_mode = RSA_ENCRYPT;
173: else if (!strcmp(*argv, "-decrypt")) {
174: rsa_mode = RSA_DECRYPT;
175: need_priv = 1;
176: } else
177: badarg = 1;
178: if (badarg) {
179: usage();
180: goto end;
181: }
182: argc--;
183: argv++;
184: }
185:
186: if (need_priv && (key_type != KEY_PRIVKEY)) {
187: BIO_printf(bio_err, "A private key is needed for this operation\n");
188: goto end;
189: }
190: #ifndef OPENSSL_NO_ENGINE
191: e = setup_engine(bio_err, engine, 0);
192: #endif
193: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
194: BIO_printf(bio_err, "Error getting password\n");
195: goto end;
196: }
197:
198: switch (key_type) {
199: case KEY_PRIVKEY:
200: pkey = load_key(bio_err, keyfile, keyform, 0,
201: passin, e, "Private Key");
202: break;
203:
204: case KEY_PUBKEY:
205: pkey = load_pubkey(bio_err, keyfile, keyform, 0,
206: NULL, e, "Public Key");
207: break;
208:
209: case KEY_CERT:
210: x = load_cert(bio_err, keyfile, keyform,
211: NULL, e, "Certificate");
212: if (x) {
213: pkey = X509_get_pubkey(x);
214: X509_free(x);
215: }
216: break;
217: }
218:
219: if (!pkey) {
220: return 1;
221: }
222: rsa = EVP_PKEY_get1_RSA(pkey);
223: EVP_PKEY_free(pkey);
224:
225: if (!rsa) {
226: BIO_printf(bio_err, "Error getting RSA key\n");
227: ERR_print_errors(bio_err);
228: goto end;
229: }
230: if (infile) {
231: if (!(in = BIO_new_file(infile, "rb"))) {
232: BIO_printf(bio_err, "Error Reading Input File\n");
233: ERR_print_errors(bio_err);
234: goto end;
235: }
236: } else
237: in = BIO_new_fp(stdin, BIO_NOCLOSE);
238:
239: if (outfile) {
240: if (!(out = BIO_new_file(outfile, "wb"))) {
241: BIO_printf(bio_err, "Error Reading Output File\n");
242: ERR_print_errors(bio_err);
243: goto end;
244: }
245: } else {
246: out = BIO_new_fp(stdout, BIO_NOCLOSE);
247: }
248:
249: keysize = RSA_size(rsa);
250:
251: rsa_in = reallocarray(NULL, keysize, 2);
252: rsa_out = malloc(keysize);
253:
254: /* Read the input data */
255: rsa_inlen = BIO_read(in, rsa_in, keysize * 2);
256: if (rsa_inlen <= 0) {
257: BIO_printf(bio_err, "Error reading input Data\n");
258: exit(1);
259: }
260: if (rev) {
261: int i;
262: unsigned char ctmp;
263: for (i = 0; i < rsa_inlen / 2; i++) {
264: ctmp = rsa_in[i];
265: rsa_in[i] = rsa_in[rsa_inlen - 1 - i];
266: rsa_in[rsa_inlen - 1 - i] = ctmp;
267: }
268: }
269: switch (rsa_mode) {
270:
271: case RSA_VERIFY:
272: rsa_outlen = RSA_public_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
273: break;
274:
275: case RSA_SIGN:
276: rsa_outlen = RSA_private_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
277: break;
278:
279: case RSA_ENCRYPT:
280: rsa_outlen = RSA_public_encrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
281: break;
282:
283: case RSA_DECRYPT:
284: rsa_outlen = RSA_private_decrypt(rsa_inlen, rsa_in, rsa_out, rsa, pad);
285: break;
286:
287: }
288:
289: if (rsa_outlen <= 0) {
290: BIO_printf(bio_err, "RSA operation error\n");
291: ERR_print_errors(bio_err);
292: goto end;
293: }
294: ret = 0;
295: if (asn1parse) {
296: if (!ASN1_parse_dump(out, rsa_out, rsa_outlen, 1, -1)) {
297: ERR_print_errors(bio_err);
298: }
299: } else if (hexdump)
300: BIO_dump(out, (char *) rsa_out, rsa_outlen);
301: else
302: BIO_write(out, rsa_out, rsa_outlen);
303:
304: end:
305: RSA_free(rsa);
306: BIO_free(in);
307: BIO_free_all(out);
308: free(rsa_in);
309: free(rsa_out);
310: free(passin);
311:
312: return ret;
313: }
314:
315: static void
316: usage()
317: {
318: BIO_printf(bio_err, "Usage: rsautl [options]\n");
319: BIO_printf(bio_err, "-in file input file\n");
320: BIO_printf(bio_err, "-out file output file\n");
321: BIO_printf(bio_err, "-inkey file input key\n");
322: BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
323: BIO_printf(bio_err, "-pubin input is an RSA public\n");
324: BIO_printf(bio_err, "-certin input is a certificate carrying an RSA public key\n");
325: BIO_printf(bio_err, "-ssl use SSL v2 padding\n");
326: BIO_printf(bio_err, "-raw use no padding\n");
327: BIO_printf(bio_err, "-pkcs use PKCS#1 v1.5 padding (default)\n");
328: BIO_printf(bio_err, "-oaep use PKCS#1 OAEP\n");
329: BIO_printf(bio_err, "-sign sign with private key\n");
330: BIO_printf(bio_err, "-verify verify with public key\n");
331: BIO_printf(bio_err, "-encrypt encrypt with public key\n");
332: BIO_printf(bio_err, "-decrypt decrypt with private key\n");
333: BIO_printf(bio_err, "-hexdump hex dump output\n");
334: #ifndef OPENSSL_NO_ENGINE
335: BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
336: BIO_printf(bio_err, "-passin arg pass phrase source\n");
337: #endif
338:
339: }
340: