Annotation of src/usr.bin/openssl/pkeyutl.c, Revision 1.1
1.1 ! jsing 1: /* $OpenBSD: pkeyutl.c,v 1.14 2014/07/14 00:35:10 deraadt Exp $ */
! 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: ERR_load_crypto_strings();
! 110: OpenSSL_add_all_algorithms();
! 111:
! 112: while (argc >= 1) {
! 113: if (!strcmp(*argv, "-in")) {
! 114: if (--argc < 1)
! 115: badarg = 1;
! 116: else
! 117: infile = *(++argv);
! 118: } else if (!strcmp(*argv, "-out")) {
! 119: if (--argc < 1)
! 120: badarg = 1;
! 121: else
! 122: outfile = *(++argv);
! 123: } else if (!strcmp(*argv, "-sigfile")) {
! 124: if (--argc < 1)
! 125: badarg = 1;
! 126: else
! 127: sigfile = *(++argv);
! 128: } else if (!strcmp(*argv, "-inkey")) {
! 129: if (--argc < 1)
! 130: badarg = 1;
! 131: else {
! 132: ctx = init_ctx(&keysize,
! 133: *(++argv), keyform, key_type,
! 134: passargin, pkey_op, e);
! 135: if (!ctx) {
! 136: BIO_puts(bio_err,
! 137: "Error initializing context\n");
! 138: ERR_print_errors(bio_err);
! 139: badarg = 1;
! 140: }
! 141: }
! 142: } else if (!strcmp(*argv, "-peerkey")) {
! 143: if (--argc < 1)
! 144: badarg = 1;
! 145: else if (!setup_peer(bio_err, ctx, peerform, *(++argv)))
! 146: badarg = 1;
! 147: } else if (!strcmp(*argv, "-passin")) {
! 148: if (--argc < 1)
! 149: badarg = 1;
! 150: else
! 151: passargin = *(++argv);
! 152: } else if (strcmp(*argv, "-peerform") == 0) {
! 153: if (--argc < 1)
! 154: badarg = 1;
! 155: else
! 156: peerform = str2fmt(*(++argv));
! 157: } else if (strcmp(*argv, "-keyform") == 0) {
! 158: if (--argc < 1)
! 159: badarg = 1;
! 160: else
! 161: keyform = str2fmt(*(++argv));
! 162: }
! 163: #ifndef OPENSSL_NO_ENGINE
! 164: else if (!strcmp(*argv, "-engine")) {
! 165: if (--argc < 1)
! 166: badarg = 1;
! 167: else
! 168: e = setup_engine(bio_err, *(++argv), 0);
! 169: }
! 170: #endif
! 171: else if (!strcmp(*argv, "-pubin"))
! 172: key_type = KEY_PUBKEY;
! 173: else if (!strcmp(*argv, "-certin"))
! 174: key_type = KEY_CERT;
! 175: else if (!strcmp(*argv, "-asn1parse"))
! 176: asn1parse = 1;
! 177: else if (!strcmp(*argv, "-hexdump"))
! 178: hexdump = 1;
! 179: else if (!strcmp(*argv, "-sign"))
! 180: pkey_op = EVP_PKEY_OP_SIGN;
! 181: else if (!strcmp(*argv, "-verify"))
! 182: pkey_op = EVP_PKEY_OP_VERIFY;
! 183: else if (!strcmp(*argv, "-verifyrecover"))
! 184: pkey_op = EVP_PKEY_OP_VERIFYRECOVER;
! 185: else if (!strcmp(*argv, "-rev"))
! 186: rev = 1;
! 187: else if (!strcmp(*argv, "-encrypt"))
! 188: pkey_op = EVP_PKEY_OP_ENCRYPT;
! 189: else if (!strcmp(*argv, "-decrypt"))
! 190: pkey_op = EVP_PKEY_OP_DECRYPT;
! 191: else if (!strcmp(*argv, "-derive"))
! 192: pkey_op = EVP_PKEY_OP_DERIVE;
! 193: else if (strcmp(*argv, "-pkeyopt") == 0) {
! 194: if (--argc < 1)
! 195: badarg = 1;
! 196: else if (!ctx) {
! 197: BIO_puts(bio_err,
! 198: "-pkeyopt command before -inkey\n");
! 199: badarg = 1;
! 200: } else if (pkey_ctrl_string(ctx, *(++argv)) <= 0) {
! 201: BIO_puts(bio_err, "parameter setting error\n");
! 202: ERR_print_errors(bio_err);
! 203: goto end;
! 204: }
! 205: } else
! 206: badarg = 1;
! 207: if (badarg) {
! 208: usage();
! 209: goto end;
! 210: }
! 211: argc--;
! 212: argv++;
! 213: }
! 214:
! 215: if (!ctx) {
! 216: usage();
! 217: goto end;
! 218: }
! 219: if (sigfile && (pkey_op != EVP_PKEY_OP_VERIFY)) {
! 220: BIO_puts(bio_err, "Signature file specified for non verify\n");
! 221: goto end;
! 222: }
! 223: if (!sigfile && (pkey_op == EVP_PKEY_OP_VERIFY)) {
! 224: BIO_puts(bio_err, "No signature file specified for verify\n");
! 225: goto end;
! 226: }
! 227:
! 228: if (pkey_op != EVP_PKEY_OP_DERIVE) {
! 229: if (infile) {
! 230: if (!(in = BIO_new_file(infile, "rb"))) {
! 231: BIO_puts(bio_err,
! 232: "Error Opening 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 Creating 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: if (sigfile) {
! 250: BIO *sigbio = BIO_new_file(sigfile, "rb");
! 251: if (!sigbio) {
! 252: BIO_printf(bio_err, "Can't open signature file %s\n",
! 253: sigfile);
! 254: goto end;
! 255: }
! 256: siglen = bio_to_mem(&sig, keysize * 10, sigbio);
! 257: BIO_free(sigbio);
! 258: if (siglen <= 0) {
! 259: BIO_printf(bio_err, "Error reading signature data\n");
! 260: goto end;
! 261: }
! 262: }
! 263: if (in) {
! 264: /* Read the input data */
! 265: buf_inlen = bio_to_mem(&buf_in, keysize * 10, in);
! 266: if (buf_inlen <= 0) {
! 267: BIO_printf(bio_err, "Error reading input Data\n");
! 268: exit(1);
! 269: }
! 270: if (rev) {
! 271: size_t i;
! 272: unsigned char ctmp;
! 273: size_t l = (size_t) buf_inlen;
! 274: for (i = 0; i < l / 2; i++) {
! 275: ctmp = buf_in[i];
! 276: buf_in[i] = buf_in[l - 1 - i];
! 277: buf_in[l - 1 - i] = ctmp;
! 278: }
! 279: }
! 280: }
! 281: if (pkey_op == EVP_PKEY_OP_VERIFY) {
! 282: rv = EVP_PKEY_verify(ctx, sig, (size_t) siglen,
! 283: buf_in, (size_t) buf_inlen);
! 284: if (rv == 0)
! 285: BIO_puts(out, "Signature Verification Failure\n");
! 286: else if (rv == 1)
! 287: BIO_puts(out, "Signature Verified Successfully\n");
! 288: if (rv >= 0)
! 289: goto end;
! 290: } else {
! 291: rv = do_keyop(ctx, pkey_op, NULL, (size_t *) & buf_outlen,
! 292: buf_in, (size_t) buf_inlen);
! 293: if (rv > 0) {
! 294: buf_out = malloc(buf_outlen);
! 295: if (!buf_out)
! 296: rv = -1;
! 297: else
! 298: rv = do_keyop(ctx, pkey_op,
! 299: buf_out, (size_t *) & buf_outlen,
! 300: buf_in, (size_t) buf_inlen);
! 301: }
! 302: }
! 303:
! 304: if (rv <= 0) {
! 305: BIO_printf(bio_err, "Public Key operation error\n");
! 306: ERR_print_errors(bio_err);
! 307: goto end;
! 308: }
! 309: ret = 0;
! 310: if (asn1parse) {
! 311: if (!ASN1_parse_dump(out, buf_out, buf_outlen, 1, -1))
! 312: ERR_print_errors(bio_err);
! 313: } else if (hexdump)
! 314: BIO_dump(out, (char *) buf_out, buf_outlen);
! 315: else
! 316: BIO_write(out, buf_out, buf_outlen);
! 317:
! 318: end:
! 319: if (ctx)
! 320: EVP_PKEY_CTX_free(ctx);
! 321: BIO_free(in);
! 322: BIO_free_all(out);
! 323: free(buf_in);
! 324: free(buf_out);
! 325: free(sig);
! 326:
! 327: return ret;
! 328: }
! 329:
! 330: static void
! 331: usage()
! 332: {
! 333: BIO_printf(bio_err, "Usage: pkeyutl [options]\n");
! 334: BIO_printf(bio_err, "-in file input file\n");
! 335: BIO_printf(bio_err, "-out file output file\n");
! 336: BIO_printf(bio_err, "-sigfile file signature file (verify operation only)\n");
! 337: BIO_printf(bio_err, "-inkey file input key\n");
! 338: BIO_printf(bio_err, "-keyform arg private key format - default PEM\n");
! 339: BIO_printf(bio_err, "-pubin input is a public key\n");
! 340: BIO_printf(bio_err, "-certin input is a certificate carrying a public key\n");
! 341: BIO_printf(bio_err, "-pkeyopt X:Y public key options\n");
! 342: BIO_printf(bio_err, "-sign sign with private key\n");
! 343: BIO_printf(bio_err, "-verify verify with public key\n");
! 344: BIO_printf(bio_err, "-verifyrecover verify with public key, recover original data\n");
! 345: BIO_printf(bio_err, "-encrypt encrypt with public key\n");
! 346: BIO_printf(bio_err, "-decrypt decrypt with private key\n");
! 347: BIO_printf(bio_err, "-derive derive shared secret\n");
! 348: BIO_printf(bio_err, "-hexdump hex dump output\n");
! 349: #ifndef OPENSSL_NO_ENGINE
! 350: BIO_printf(bio_err, "-engine e use engine e, possibly a hardware device.\n");
! 351: #endif
! 352: BIO_printf(bio_err, "-passin arg pass phrase source\n");
! 353:
! 354: }
! 355:
! 356: static EVP_PKEY_CTX *
! 357: init_ctx(int *pkeysize,
! 358: char *keyfile, int keyform, int key_type,
! 359: char *passargin, int pkey_op, ENGINE * e)
! 360: {
! 361: EVP_PKEY *pkey = NULL;
! 362: EVP_PKEY_CTX *ctx = NULL;
! 363: char *passin = NULL;
! 364: int rv = -1;
! 365: X509 *x;
! 366: if (((pkey_op == EVP_PKEY_OP_SIGN) || (pkey_op == EVP_PKEY_OP_DECRYPT)
! 367: || (pkey_op == EVP_PKEY_OP_DERIVE))
! 368: && (key_type != KEY_PRIVKEY)) {
! 369: BIO_printf(bio_err, "A private key is needed for this operation\n");
! 370: goto end;
! 371: }
! 372: if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
! 373: BIO_printf(bio_err, "Error getting password\n");
! 374: goto end;
! 375: }
! 376: switch (key_type) {
! 377: case KEY_PRIVKEY:
! 378: pkey = load_key(bio_err, keyfile, keyform, 0,
! 379: passin, e, "Private Key");
! 380: break;
! 381:
! 382: case KEY_PUBKEY:
! 383: pkey = load_pubkey(bio_err, keyfile, keyform, 0,
! 384: NULL, e, "Public Key");
! 385: break;
! 386:
! 387: case KEY_CERT:
! 388: x = load_cert(bio_err, keyfile, keyform,
! 389: NULL, e, "Certificate");
! 390: if (x) {
! 391: pkey = X509_get_pubkey(x);
! 392: X509_free(x);
! 393: }
! 394: break;
! 395:
! 396: }
! 397:
! 398: *pkeysize = EVP_PKEY_size(pkey);
! 399:
! 400: if (!pkey)
! 401: goto end;
! 402:
! 403: ctx = EVP_PKEY_CTX_new(pkey, e);
! 404:
! 405: EVP_PKEY_free(pkey);
! 406:
! 407: if (!ctx)
! 408: goto end;
! 409:
! 410: switch (pkey_op) {
! 411: case EVP_PKEY_OP_SIGN:
! 412: rv = EVP_PKEY_sign_init(ctx);
! 413: break;
! 414:
! 415: case EVP_PKEY_OP_VERIFY:
! 416: rv = EVP_PKEY_verify_init(ctx);
! 417: break;
! 418:
! 419: case EVP_PKEY_OP_VERIFYRECOVER:
! 420: rv = EVP_PKEY_verify_recover_init(ctx);
! 421: break;
! 422:
! 423: case EVP_PKEY_OP_ENCRYPT:
! 424: rv = EVP_PKEY_encrypt_init(ctx);
! 425: break;
! 426:
! 427: case EVP_PKEY_OP_DECRYPT:
! 428: rv = EVP_PKEY_decrypt_init(ctx);
! 429: break;
! 430:
! 431: case EVP_PKEY_OP_DERIVE:
! 432: rv = EVP_PKEY_derive_init(ctx);
! 433: break;
! 434: }
! 435:
! 436: if (rv <= 0) {
! 437: EVP_PKEY_CTX_free(ctx);
! 438: ctx = NULL;
! 439: }
! 440: end:
! 441:
! 442: free(passin);
! 443:
! 444: return ctx;
! 445:
! 446:
! 447: }
! 448:
! 449: static int
! 450: setup_peer(BIO * err, EVP_PKEY_CTX * ctx, int peerform,
! 451: const char *file)
! 452: {
! 453: EVP_PKEY *peer = NULL;
! 454: int ret;
! 455: if (!ctx) {
! 456: BIO_puts(err, "-peerkey command before -inkey\n");
! 457: return 0;
! 458: }
! 459: peer = load_pubkey(bio_err, file, peerform, 0, NULL, NULL, "Peer Key");
! 460:
! 461: if (!peer) {
! 462: BIO_printf(bio_err, "Error reading peer key %s\n", file);
! 463: ERR_print_errors(err);
! 464: return 0;
! 465: }
! 466: ret = EVP_PKEY_derive_set_peer(ctx, peer);
! 467:
! 468: EVP_PKEY_free(peer);
! 469: if (ret <= 0)
! 470: ERR_print_errors(err);
! 471: return ret;
! 472: }
! 473:
! 474: static int
! 475: do_keyop(EVP_PKEY_CTX * ctx, int pkey_op,
! 476: unsigned char *out, size_t * poutlen,
! 477: unsigned char *in, size_t inlen)
! 478: {
! 479: int rv = 0;
! 480: switch (pkey_op) {
! 481: case EVP_PKEY_OP_VERIFYRECOVER:
! 482: rv = EVP_PKEY_verify_recover(ctx, out, poutlen, in, inlen);
! 483: break;
! 484:
! 485: case EVP_PKEY_OP_SIGN:
! 486: rv = EVP_PKEY_sign(ctx, out, poutlen, in, inlen);
! 487: break;
! 488:
! 489: case EVP_PKEY_OP_ENCRYPT:
! 490: rv = EVP_PKEY_encrypt(ctx, out, poutlen, in, inlen);
! 491: break;
! 492:
! 493: case EVP_PKEY_OP_DECRYPT:
! 494: rv = EVP_PKEY_decrypt(ctx, out, poutlen, in, inlen);
! 495: break;
! 496:
! 497: case EVP_PKEY_OP_DERIVE:
! 498: rv = EVP_PKEY_derive(ctx, out, poutlen);
! 499: break;
! 500:
! 501: }
! 502: return rv;
! 503: }
![[BACK]](/icons/back.gif){kind=icon}
Return to pkeyutl.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / openssl