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1.4 ! deraadt 1: /* $OpenBSD: pkeyutl.c,v 1.3 2014/08/28 14:25:48 jsing Exp $ */
1.1 jsing 2: /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3: * project 2006.
4: */
5: /* ====================================================================
6: * Copyright (c) 2006 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 <string.h>
60:
61: #include "apps.h"
62:
63: #include <openssl/err.h>
64: #include <openssl/evp.h>
65: #include <openssl/pem.h>
66:
67: #define KEY_PRIVKEY 1
68: #define KEY_PUBKEY 2
69: #define KEY_CERT 3
70:
71: static void usage(void);
72:
73: static EVP_PKEY_CTX *init_ctx(int *pkeysize,
74: char *keyfile, int keyform, int key_type,
75: char *passargin, int pkey_op, ENGINE * e);
76:
77: static int setup_peer(BIO * err, EVP_PKEY_CTX * ctx, int peerform,
78: const char *file);
79:
80: static int do_keyop(EVP_PKEY_CTX * ctx, int pkey_op,
81: unsigned char *out, size_t * poutlen,
82: unsigned char *in, size_t inlen);
83:
84: int pkeyutl_main(int argc, char **);
85:
86: int
87: pkeyutl_main(int argc, char **argv)
88: {
89: BIO *in = NULL, *out = NULL;
90: char *infile = NULL, *outfile = NULL, *sigfile = NULL;
91: ENGINE *e = NULL;
92: int pkey_op = EVP_PKEY_OP_SIGN, key_type = KEY_PRIVKEY;
93: int keyform = FORMAT_PEM, peerform = FORMAT_PEM;
94: char badarg = 0, rev = 0;
95: char hexdump = 0, asn1parse = 0;
96: EVP_PKEY_CTX *ctx = NULL;
97: char *passargin = NULL;
98: int keysize = -1;
99:
100: unsigned char *buf_in = NULL, *buf_out = NULL, *sig = NULL;
101: size_t buf_outlen;
102: int buf_inlen = 0, siglen = -1;
103:
104: int ret = 1, rv = -1;
105:
106: argc--;
107: argv++;
108:
109: while (argc >= 1) {
110: if (!strcmp(*argv, "-in")) {
111: if (--argc < 1)
112: badarg = 1;
113: else
114: infile = *(++argv);
115: } else if (!strcmp(*argv, "-out")) {
116: if (--argc < 1)
117: badarg = 1;
118: else
119: outfile = *(++argv);
120: } else if (!strcmp(*argv, "-sigfile")) {
121: if (--argc < 1)
122: badarg = 1;
123: else
124: sigfile = *(++argv);
125: } else if (!strcmp(*argv, "-inkey")) {
126: if (--argc < 1)
127: badarg = 1;
128: else {
129: ctx = init_ctx(&keysize,
130: *(++argv), keyform, key_type,
131: passargin, pkey_op, e);
132: if (!ctx) {
133: BIO_puts(bio_err,
134: "Error initializing context\n");
135: ERR_print_errors(bio_err);
136: badarg = 1;
137: }
138: }
139: } else if (!strcmp(*argv, "-peerkey")) {
140: if (--argc < 1)
141: badarg = 1;
142: else if (!setup_peer(bio_err, ctx, peerform, *(++argv)))
143: badarg = 1;
144: } else if (!strcmp(*argv, "-passin")) {
145: if (--argc < 1)
146: badarg = 1;
147: else
148: passargin = *(++argv);
149: } else if (strcmp(*argv, "-peerform") == 0) {
150: if (--argc < 1)
151: badarg = 1;
152: else
153: peerform = str2fmt(*(++argv));
154: } else if (strcmp(*argv, "-keyform") == 0) {
155: if (--argc < 1)
156: badarg = 1;
157: else
158: keyform = str2fmt(*(++argv));
159: }
160: #ifndef OPENSSL_NO_ENGINE
161: else if (!strcmp(*argv, "-engine")) {
162: if (--argc < 1)
163: badarg = 1;
164: else
165: e = setup_engine(bio_err, *(++argv), 0);
166: }
167: #endif
168: else if (!strcmp(*argv, "-pubin"))
169: key_type = KEY_PUBKEY;
170: else if (!strcmp(*argv, "-certin"))
171: key_type = KEY_CERT;
172: else if (!strcmp(*argv, "-asn1parse"))
173: asn1parse = 1;
174: else if (!strcmp(*argv, "-hexdump"))
175: hexdump = 1;
176: else if (!strcmp(*argv, "-sign"))
177: pkey_op = EVP_PKEY_OP_SIGN;
178: else if (!strcmp(*argv, "-verify"))
179: pkey_op = EVP_PKEY_OP_VERIFY;
180: else if (!strcmp(*argv, "-verifyrecover"))
181: pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
182: else if (!strcmp(*argv, "-rev"))
183: rev = 1;
184: else if (!strcmp(*argv, "-encrypt"))
185: pkey_op = EVP_PKEY_OP_ENCRYPT;
186: else if (!strcmp(*argv, "-decrypt"))
187: pkey_op = EVP_PKEY_OP_DECRYPT;
188: else if (!strcmp(*argv, "-derive"))
189: pkey_op = EVP_PKEY_OP_DERIVE;
190: else if (strcmp(*argv, "-pkeyopt") == 0) {
191: if (--argc < 1)
192: badarg = 1;
193: else if (!ctx) {
194: BIO_puts(bio_err,
195: "-pkeyopt command before -inkey\n");
196: badarg = 1;
197: } else if (pkey_ctrl_string(ctx, *(++argv)) <= 0) {
198: BIO_puts(bio_err, "parameter setting error\n");
199: ERR_print_errors(bio_err);
200: goto end;
201: }
202: } else
203: badarg = 1;
204: if (badarg) {
205: usage();
206: goto end;
207: }
208: argc--;
209: argv++;
210: }
211:
212: if (!ctx) {
213: usage();
214: goto end;
215: }
216: if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
217: BIO_puts(bio_err, "Signature file specified for non verify\n");
218: goto end;
219: }
220: if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
221: BIO_puts(bio_err, "No signature file specified for verify\n");
222: goto end;
223: }
224:
225: if (pkey_op != EVP_PKEY_OP_DERIVE) {
226: if (infile) {
227: if (!(in = BIO_new_file(infile, "rb"))) {
228: BIO_puts(bio_err,
229: "Error Opening Input File\n");
230: ERR_print_errors(bio_err);
231: goto end;
232: }
233: } else
234: in = BIO_new_fp(stdin, BIO_NOCLOSE);
235: }
236: if (outfile) {
237: if (!(out = BIO_new_file(outfile, "wb"))) {
238: BIO_printf(bio_err, "Error Creating Output File\n");
239: ERR_print_errors(bio_err);
240: goto end;
241: }
242: } else {
243: out = BIO_new_fp(stdout, BIO_NOCLOSE);
244: }
245:
246: if (sigfile) {
247: BIO *sigbio = BIO_new_file(sigfile, "rb");
248: if (!sigbio) {
249: BIO_printf(bio_err, "Can't open signature file %s\n",
250: sigfile);
251: goto end;
252: }
253: siglen = bio_to_mem(&sig, keysize * 10, sigbio);
254: BIO_free(sigbio);
255: if (siglen <= 0) {
256: BIO_printf(bio_err, "Error reading signature data\n");
257: goto end;
258: }
259: }
260: if (in) {
261: /* Read the input data */
262: buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
263: if (buf_inlen <= 0) {
264: BIO_printf(bio_err, "Error reading input Data\n");
265: exit(1);
266: }
267: if (rev) {
268: size_t i;
269: unsigned char ctmp;
270: size_t l = (size_t) buf_inlen;
271: for (i = 0; i < l / 2; i++) {
272: ctmp = buf_in[i];
273: buf_in[i] = buf_in[l - 1 - i];
274: buf_in[l - 1 - i] = ctmp;
275: }
276: }
277: }
278: if (pkey_op == EVP_PKEY_OP_VERIFY) {
279: rv = EVP_PKEY_verify(ctx, sig, (size_t) siglen,
280: buf_in, (size_t) buf_inlen);
281: if (rv == 0)
282: BIO_puts(out, "Signature Verification Failure\n");
283: else if (rv == 1)
284: BIO_puts(out, "Signature Verified Successfully\n");
285: if (rv >= 0)
286: goto end;
287: } else {
1.4 ! deraadt 288: rv = do_keyop(ctx, pkey_op, NULL, (size_t *)&buf_outlen,
1.1 jsing 289: buf_in, (size_t) buf_inlen);
290: if (rv > 0) {
291: buf_out = malloc(buf_outlen);
292: if (!buf_out)
293: rv = -1;
294: else
295: rv = do_keyop(ctx, pkey_op,
296: buf_out, (size_t *) & buf_outlen,
297: buf_in, (size_t) buf_inlen);
298: }
299: }
300:
301: if (rv <= 0) {
302: BIO_printf(bio_err, "Public Key operation error\n");
303: ERR_print_errors(bio_err);
304: goto end;
305: }
306: ret = 0;
307: if (asn1parse) {
308: if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
309: ERR_print_errors(bio_err);
310: } else if (hexdump)
311: BIO_dump(out, (char *) buf_out, buf_outlen);
312: else
313: BIO_write(out, buf_out, buf_outlen);
314:
315: end:
316: if (ctx)
317: EVP_PKEY_CTX_free(ctx);
318: BIO_free(in);
319: BIO_free_all(out);
320: free(buf_in);
321: free(buf_out);
322: free(sig);
323:
324: return ret;
325: }
326:
327: static void
328: usage()
329: {
330: BIO_printf(bio_err, "Usage: pkeyutl [options]\n");
331: BIO_printf(bio_err, "-in file input file\n");
332: BIO_printf(bio_err, "-out file output file\n");
333: BIO_printf(bio_err, "-sigfile file signature file (verify operation only)\n");
334: BIO_printf(bio_err, "-inkey file input key\n");
335: BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
336: BIO_printf(bio_err, "-pubin input is a public key\n");
337: BIO_printf(bio_err, "-certin input is a certificate carrying a public key\n");
338: BIO_printf(bio_err, "-pkeyopt X:Y public key options\n");
339: BIO_printf(bio_err, "-sign sign with private key\n");
340: BIO_printf(bio_err, "-verify verify with public key\n");
341: BIO_printf(bio_err, "-verifyrecover verify with public key, recover original data\n");
342: BIO_printf(bio_err, "-encrypt encrypt with public key\n");
343: BIO_printf(bio_err, "-decrypt decrypt with private key\n");
344: BIO_printf(bio_err, "-derive derive shared secret\n");
345: BIO_printf(bio_err, "-hexdump hex dump output\n");
346: #ifndef OPENSSL_NO_ENGINE
347: BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
348: #endif
349: BIO_printf(bio_err, "-passin arg pass phrase source\n");
350:
351: }
352:
353: static EVP_PKEY_CTX *
354: init_ctx(int *pkeysize,
355: char *keyfile, int keyform, int key_type,
356: char *passargin, int pkey_op, ENGINE * e)
357: {
358: EVP_PKEY *pkey = NULL;
359: EVP_PKEY_CTX *ctx = NULL;
360: char *passin = NULL;
361: int rv = -1;
362: X509 *x;
363: if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
364: || (pkey_op == EVP_PKEY_OP_DERIVE))
365: && (key_type != KEY_PRIVKEY)) {
366: BIO_printf(bio_err, "A private key is needed for this operation\n");
367: goto end;
368: }
369: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
370: BIO_printf(bio_err, "Error getting password\n");
371: goto end;
372: }
373: switch (key_type) {
374: case KEY_PRIVKEY:
375: pkey = load_key(bio_err, keyfile, keyform, 0,
376: passin, e, "Private Key");
377: break;
378:
379: case KEY_PUBKEY:
380: pkey = load_pubkey(bio_err, keyfile, keyform, 0,
381: NULL, e, "Public Key");
382: break;
383:
384: case KEY_CERT:
385: x = load_cert(bio_err, keyfile, keyform,
386: NULL, e, "Certificate");
387: if (x) {
388: pkey = X509_get_pubkey(x);
389: X509_free(x);
390: }
391: break;
392:
393: }
394:
395: *pkeysize = EVP_PKEY_size(pkey);
396:
397: if (!pkey)
398: goto end;
399:
400: ctx = EVP_PKEY_CTX_new(pkey, e);
401:
402: EVP_PKEY_free(pkey);
403:
404: if (!ctx)
405: goto end;
406:
407: switch (pkey_op) {
408: case EVP_PKEY_OP_SIGN:
409: rv = EVP_PKEY_sign_init(ctx);
410: break;
411:
412: case EVP_PKEY_OP_VERIFY:
413: rv = EVP_PKEY_verify_init(ctx);
414: break;
415:
416: case EVP_PKEY_OP_VERIFYRECOVER:
417: rv = EVP_PKEY_verify_recover_init(ctx);
418: break;
419:
420: case EVP_PKEY_OP_ENCRYPT:
421: rv = EVP_PKEY_encrypt_init(ctx);
422: break;
423:
424: case EVP_PKEY_OP_DECRYPT:
425: rv = EVP_PKEY_decrypt_init(ctx);
426: break;
427:
428: case EVP_PKEY_OP_DERIVE:
429: rv = EVP_PKEY_derive_init(ctx);
430: break;
431: }
432:
433: if (rv <= 0) {
434: EVP_PKEY_CTX_free(ctx);
435: ctx = NULL;
436: }
437: end:
438:
439: free(passin);
440:
441: return ctx;
442:
443:
444: }
445:
446: static int
447: setup_peer(BIO * err, EVP_PKEY_CTX * ctx, int peerform,
448: const char *file)
449: {
450: EVP_PKEY *peer = NULL;
451: int ret;
452: if (!ctx) {
453: BIO_puts(err, "-peerkey command before -inkey\n");
454: return 0;
455: }
456: peer = load_pubkey(bio_err, file, peerform, 0, NULL, NULL, "Peer Key");
457:
458: if (!peer) {
459: BIO_printf(bio_err, "Error reading peer key %s\n", file);
460: ERR_print_errors(err);
461: return 0;
462: }
463: ret = EVP_PKEY_derive_set_peer(ctx, peer);
464:
465: EVP_PKEY_free(peer);
466: if (ret <= 0)
467: ERR_print_errors(err);
468: return ret;
469: }
470:
471: static int
472: do_keyop(EVP_PKEY_CTX * ctx, int pkey_op,
473: unsigned char *out, size_t * poutlen,
474: unsigned char *in, size_t inlen)
475: {
476: int rv = 0;
477: switch (pkey_op) {
478: case EVP_PKEY_OP_VERIFYRECOVER:
479: rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
480: break;
481:
482: case EVP_PKEY_OP_SIGN:
483: rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
484: break;
485:
486: case EVP_PKEY_OP_ENCRYPT:
487: rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
488: break;
489:
490: case EVP_PKEY_OP_DECRYPT:
491: rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
492: break;
493:
494: case EVP_PKEY_OP_DERIVE:
495: rv = EVP_PKEY_derive(ctx, out, poutlen);
496: break;
497:
498: }
499: return rv;
500: }