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1.2 ! jsing 1: /* $OpenBSD: pkeyutl.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 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: OpenSSL_add_all_algorithms();
110:
111: while (argc >= 1) {
112: if (!strcmp(*argv, "-in")) {
113: if (--argc < 1)
114: badarg = 1;
115: else
116: infile = *(++argv);
117: } else if (!strcmp(*argv, "-out")) {
118: if (--argc < 1)
119: badarg = 1;
120: else
121: outfile = *(++argv);
122: } else if (!strcmp(*argv, "-sigfile")) {
123: if (--argc < 1)
124: badarg = 1;
125: else
126: sigfile = *(++argv);
127: } else if (!strcmp(*argv, "-inkey")) {
128: if (--argc < 1)
129: badarg = 1;
130: else {
131: ctx = init_ctx(&keysize,
132: *(++argv), keyform, key_type,
133: passargin, pkey_op, e);
134: if (!ctx) {
135: BIO_puts(bio_err,
136: "Error initializing context\n");
137: ERR_print_errors(bio_err);
138: badarg = 1;
139: }
140: }
141: } else if (!strcmp(*argv, "-peerkey")) {
142: if (--argc < 1)
143: badarg = 1;
144: else if (!setup_peer(bio_err, ctx, peerform, *(++argv)))
145: badarg = 1;
146: } else if (!strcmp(*argv, "-passin")) {
147: if (--argc < 1)
148: badarg = 1;
149: else
150: passargin = *(++argv);
151: } else if (strcmp(*argv, "-peerform") == 0) {
152: if (--argc < 1)
153: badarg = 1;
154: else
155: peerform = str2fmt(*(++argv));
156: } else if (strcmp(*argv, "-keyform") == 0) {
157: if (--argc < 1)
158: badarg = 1;
159: else
160: keyform = str2fmt(*(++argv));
161: }
162: #ifndef OPENSSL_NO_ENGINE
163: else if (!strcmp(*argv, "-engine")) {
164: if (--argc < 1)
165: badarg = 1;
166: else
167: e = setup_engine(bio_err, *(++argv), 0);
168: }
169: #endif
170: else if (!strcmp(*argv, "-pubin"))
171: key_type = KEY_PUBKEY;
172: else if (!strcmp(*argv, "-certin"))
173: key_type = KEY_CERT;
174: else if (!strcmp(*argv, "-asn1parse"))
175: asn1parse = 1;
176: else if (!strcmp(*argv, "-hexdump"))
177: hexdump = 1;
178: else if (!strcmp(*argv, "-sign"))
179: pkey_op = EVP_PKEY_OP_SIGN;
180: else if (!strcmp(*argv, "-verify"))
181: pkey_op = EVP_PKEY_OP_VERIFY;
182: else if (!strcmp(*argv, "-verifyrecover"))
183: pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
184: else if (!strcmp(*argv, "-rev"))
185: rev = 1;
186: else if (!strcmp(*argv, "-encrypt"))
187: pkey_op = EVP_PKEY_OP_ENCRYPT;
188: else if (!strcmp(*argv, "-decrypt"))
189: pkey_op = EVP_PKEY_OP_DECRYPT;
190: else if (!strcmp(*argv, "-derive"))
191: pkey_op = EVP_PKEY_OP_DERIVE;
192: else if (strcmp(*argv, "-pkeyopt") == 0) {
193: if (--argc < 1)
194: badarg = 1;
195: else if (!ctx) {
196: BIO_puts(bio_err,
197: "-pkeyopt command before -inkey\n");
198: badarg = 1;
199: } else if (pkey_ctrl_string(ctx, *(++argv)) <= 0) {
200: BIO_puts(bio_err, "parameter setting error\n");
201: ERR_print_errors(bio_err);
202: goto end;
203: }
204: } else
205: badarg = 1;
206: if (badarg) {
207: usage();
208: goto end;
209: }
210: argc--;
211: argv++;
212: }
213:
214: if (!ctx) {
215: usage();
216: goto end;
217: }
218: if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
219: BIO_puts(bio_err, "Signature file specified for non verify\n");
220: goto end;
221: }
222: if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
223: BIO_puts(bio_err, "No signature file specified for verify\n");
224: goto end;
225: }
226:
227: if (pkey_op != EVP_PKEY_OP_DERIVE) {
228: if (infile) {
229: if (!(in = BIO_new_file(infile, "rb"))) {
230: BIO_puts(bio_err,
231: "Error Opening Input File\n");
232: ERR_print_errors(bio_err);
233: goto end;
234: }
235: } else
236: in = BIO_new_fp(stdin, BIO_NOCLOSE);
237: }
238: if (outfile) {
239: if (!(out = BIO_new_file(outfile, "wb"))) {
240: BIO_printf(bio_err, "Error Creating Output File\n");
241: ERR_print_errors(bio_err);
242: goto end;
243: }
244: } else {
245: out = BIO_new_fp(stdout, BIO_NOCLOSE);
246: }
247:
248: if (sigfile) {
249: BIO *sigbio = BIO_new_file(sigfile, "rb");
250: if (!sigbio) {
251: BIO_printf(bio_err, "Can't open signature file %s\n",
252: sigfile);
253: goto end;
254: }
255: siglen = bio_to_mem(&sig, keysize * 10, sigbio);
256: BIO_free(sigbio);
257: if (siglen <= 0) {
258: BIO_printf(bio_err, "Error reading signature data\n");
259: goto end;
260: }
261: }
262: if (in) {
263: /* Read the input data */
264: buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
265: if (buf_inlen <= 0) {
266: BIO_printf(bio_err, "Error reading input Data\n");
267: exit(1);
268: }
269: if (rev) {
270: size_t i;
271: unsigned char ctmp;
272: size_t l = (size_t) buf_inlen;
273: for (i = 0; i < l / 2; i++) {
274: ctmp = buf_in[i];
275: buf_in[i] = buf_in[l - 1 - i];
276: buf_in[l - 1 - i] = ctmp;
277: }
278: }
279: }
280: if (pkey_op == EVP_PKEY_OP_VERIFY) {
281: rv = EVP_PKEY_verify(ctx, sig, (size_t) siglen,
282: buf_in, (size_t) buf_inlen);
283: if (rv == 0)
284: BIO_puts(out, "Signature Verification Failure\n");
285: else if (rv == 1)
286: BIO_puts(out, "Signature Verified Successfully\n");
287: if (rv >= 0)
288: goto end;
289: } else {
290: rv = do_keyop(ctx, pkey_op, NULL, (size_t *) & buf_outlen,
291: buf_in, (size_t) buf_inlen);
292: if (rv > 0) {
293: buf_out = malloc(buf_outlen);
294: if (!buf_out)
295: rv = -1;
296: else
297: rv = do_keyop(ctx, pkey_op,
298: buf_out, (size_t *) & buf_outlen,
299: buf_in, (size_t) buf_inlen);
300: }
301: }
302:
303: if (rv <= 0) {
304: BIO_printf(bio_err, "Public Key operation error\n");
305: ERR_print_errors(bio_err);
306: goto end;
307: }
308: ret = 0;
309: if (asn1parse) {
310: if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
311: ERR_print_errors(bio_err);
312: } else if (hexdump)
313: BIO_dump(out, (char *) buf_out, buf_outlen);
314: else
315: BIO_write(out, buf_out, buf_outlen);
316:
317: end:
318: if (ctx)
319: EVP_PKEY_CTX_free(ctx);
320: BIO_free(in);
321: BIO_free_all(out);
322: free(buf_in);
323: free(buf_out);
324: free(sig);
325:
326: return ret;
327: }
328:
329: static void
330: usage()
331: {
332: BIO_printf(bio_err, "Usage: pkeyutl [options]\n");
333: BIO_printf(bio_err, "-in file input file\n");
334: BIO_printf(bio_err, "-out file output file\n");
335: BIO_printf(bio_err, "-sigfile file signature file (verify operation only)\n");
336: BIO_printf(bio_err, "-inkey file input key\n");
337: BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
338: BIO_printf(bio_err, "-pubin input is a public key\n");
339: BIO_printf(bio_err, "-certin input is a certificate carrying a public key\n");
340: BIO_printf(bio_err, "-pkeyopt X:Y public key options\n");
341: BIO_printf(bio_err, "-sign sign with private key\n");
342: BIO_printf(bio_err, "-verify verify with public key\n");
343: BIO_printf(bio_err, "-verifyrecover verify with public key, recover original data\n");
344: BIO_printf(bio_err, "-encrypt encrypt with public key\n");
345: BIO_printf(bio_err, "-decrypt decrypt with private key\n");
346: BIO_printf(bio_err, "-derive derive shared secret\n");
347: BIO_printf(bio_err, "-hexdump hex dump output\n");
348: #ifndef OPENSSL_NO_ENGINE
349: BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
350: #endif
351: BIO_printf(bio_err, "-passin arg pass phrase source\n");
352:
353: }
354:
355: static EVP_PKEY_CTX *
356: init_ctx(int *pkeysize,
357: char *keyfile, int keyform, int key_type,
358: char *passargin, int pkey_op, ENGINE * e)
359: {
360: EVP_PKEY *pkey = NULL;
361: EVP_PKEY_CTX *ctx = NULL;
362: char *passin = NULL;
363: int rv = -1;
364: X509 *x;
365: if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
366: || (pkey_op == EVP_PKEY_OP_DERIVE))
367: && (key_type != KEY_PRIVKEY)) {
368: BIO_printf(bio_err, "A private key is needed for this operation\n");
369: goto end;
370: }
371: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
372: BIO_printf(bio_err, "Error getting password\n");
373: goto end;
374: }
375: switch (key_type) {
376: case KEY_PRIVKEY:
377: pkey = load_key(bio_err, keyfile, keyform, 0,
378: passin, e, "Private Key");
379: break;
380:
381: case KEY_PUBKEY:
382: pkey = load_pubkey(bio_err, keyfile, keyform, 0,
383: NULL, e, "Public Key");
384: break;
385:
386: case KEY_CERT:
387: x = load_cert(bio_err, keyfile, keyform,
388: NULL, e, "Certificate");
389: if (x) {
390: pkey = X509_get_pubkey(x);
391: X509_free(x);
392: }
393: break;
394:
395: }
396:
397: *pkeysize = EVP_PKEY_size(pkey);
398:
399: if (!pkey)
400: goto end;
401:
402: ctx = EVP_PKEY_CTX_new(pkey, e);
403:
404: EVP_PKEY_free(pkey);
405:
406: if (!ctx)
407: goto end;
408:
409: switch (pkey_op) {
410: case EVP_PKEY_OP_SIGN:
411: rv = EVP_PKEY_sign_init(ctx);
412: break;
413:
414: case EVP_PKEY_OP_VERIFY:
415: rv = EVP_PKEY_verify_init(ctx);
416: break;
417:
418: case EVP_PKEY_OP_VERIFYRECOVER:
419: rv = EVP_PKEY_verify_recover_init(ctx);
420: break;
421:
422: case EVP_PKEY_OP_ENCRYPT:
423: rv = EVP_PKEY_encrypt_init(ctx);
424: break;
425:
426: case EVP_PKEY_OP_DECRYPT:
427: rv = EVP_PKEY_decrypt_init(ctx);
428: break;
429:
430: case EVP_PKEY_OP_DERIVE:
431: rv = EVP_PKEY_derive_init(ctx);
432: break;
433: }
434:
435: if (rv <= 0) {
436: EVP_PKEY_CTX_free(ctx);
437: ctx = NULL;
438: }
439: end:
440:
441: free(passin);
442:
443: return ctx;
444:
445:
446: }
447:
448: static int
449: setup_peer(BIO * err, EVP_PKEY_CTX * ctx, int peerform,
450: const char *file)
451: {
452: EVP_PKEY *peer = NULL;
453: int ret;
454: if (!ctx) {
455: BIO_puts(err, "-peerkey command before -inkey\n");
456: return 0;
457: }
458: peer = load_pubkey(bio_err, file, peerform, 0, NULL, NULL, "Peer Key");
459:
460: if (!peer) {
461: BIO_printf(bio_err, "Error reading peer key %s\n", file);
462: ERR_print_errors(err);
463: return 0;
464: }
465: ret = EVP_PKEY_derive_set_peer(ctx, peer);
466:
467: EVP_PKEY_free(peer);
468: if (ret <= 0)
469: ERR_print_errors(err);
470: return ret;
471: }
472:
473: static int
474: do_keyop(EVP_PKEY_CTX * ctx, int pkey_op,
475: unsigned char *out, size_t * poutlen,
476: unsigned char *in, size_t inlen)
477: {
478: int rv = 0;
479: switch (pkey_op) {
480: case EVP_PKEY_OP_VERIFYRECOVER:
481: rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
482: break;
483:
484: case EVP_PKEY_OP_SIGN:
485: rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
486: break;
487:
488: case EVP_PKEY_OP_ENCRYPT:
489: rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
490: break;
491:
492: case EVP_PKEY_OP_DECRYPT:
493: rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
494: break;
495:
496: case EVP_PKEY_OP_DERIVE:
497: rv = EVP_PKEY_derive(ctx, out, poutlen);
498: break;
499:
500: }
501: return rv;
502: }