crypto/openssl-0.9/engines/e_4758cca.c

   1 /* Author: Maurice Gittens <maurice@gittens.nl>                       */
   2 /* ====================================================================
   3  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the
  15  *    distribution.
  16  *
  17  * 3. All advertising materials mentioning features or use of this
  18  *    software must display the following acknowledgment:
  19  *    "This product includes software developed by the OpenSSL Project
  20  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  21  *
  22  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  23  *    endorse or promote products derived from this software without
  24  *    prior written permission. For written permission, please contact
  25  *    licensing@OpenSSL.org.
  26  *
  27  * 5. Products derived from this software may not be called "OpenSSL"
  28  *    nor may "OpenSSL" appear in their names without prior written
  29  *    permission of the OpenSSL Project.
  30  *
  31  * 6. Redistributions of any form whatsoever must retain the following
  32  *    acknowledgment:
  33  *    "This product includes software developed by the OpenSSL Project
  34  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  37  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  38  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  42  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  43  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  44  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  45  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  46  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  47  * OF THE POSSIBILITY OF SUCH DAMAGE.
  48  * ====================================================================
  49  *
  50  * This product includes cryptographic software written by Eric Young
  51  * (eay@cryptsoft.com).  This product includes software written by Tim
  52  * Hudson (tjh@cryptsoft.com).
  53  *
  54  */
  55
  56 #include <stdio.h>
  57 #include <string.h>
  58 #include <openssl/crypto.h>
  59 #include <openssl/dso.h>
  60 #include <openssl/x509.h>
  61 #include <openssl/objects.h>
  62 #include <openssl/engine.h>
  63 #include <openssl/rand.h>
  64 #include <openssl/rsa.h>
  65 #include <openssl/bn.h>
  66
  67 #ifndef OPENSSL_NO_HW
  68 #ifndef OPENSSL_NO_HW_4758_CCA
  69
  70 #ifdef FLAT_INC
  71 #include "hw_4758_cca.h"
  72 #else
  73 #include "vendor_defns/hw_4758_cca.h"
  74 #endif
  75
  76 #include "e_4758cca_err.c"
  77
  78 static int ibm_4758_cca_destroy(ENGINE *e);
  79 static int ibm_4758_cca_init(ENGINE *e);
  80 static int ibm_4758_cca_finish(ENGINE *e);
  81 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
  82
  83 /* rsa functions */
  84 /*---------------*/
  85 #ifndef OPENSSL_NO_RSA
  86 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
  87                 unsigned char *to, RSA *rsa,int padding);
  88 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
  89                 unsigned char *to, RSA *rsa,int padding);
  90 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
  91                 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
  92 static int cca_rsa_verify(int dtype, const unsigned char *m, unsigned int m_len,
  93                 unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);
  94
  95 /* utility functions */
  96 /*-----------------------*/
  97 static EVP_PKEY *ibm_4758_load_privkey(ENGINE*, const char*,
  98                 UI_METHOD *ui_method, void *callback_data);
  99 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE*, const char*,
 100                 UI_METHOD *ui_method, void *callback_data);
 101
 102 static int getModulusAndExponent(const unsigned char *token, long *exponentLength,
 103                 unsigned char *exponent, long *modulusLength,
 104                 long *modulusFieldLength, unsigned char *modulus);
 105 #endif
 106
 107 /* RAND number functions */
 108 /*-----------------------*/
 109 static int cca_get_random_bytes(unsigned char*, int );
 110 static int cca_random_status(void);
 111
 112 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
 113                 int idx,long argl, void *argp);
 114
 115 /* Function pointers for CCA verbs */
 116 /*---------------------------------*/
 117 #ifndef OPENSSL_NO_RSA
 118 static F_KEYRECORDREAD keyRecordRead;
 119 static F_DIGITALSIGNATUREGENERATE digitalSignatureGenerate;
 120 static F_DIGITALSIGNATUREVERIFY digitalSignatureVerify;
 121 static F_PUBLICKEYEXTRACT publicKeyExtract;
 122 static F_PKAENCRYPT pkaEncrypt;
 123 static F_PKADECRYPT pkaDecrypt;
 124 #endif
 125 static F_RANDOMNUMBERGENERATE randomNumberGenerate;
 126
 127 /* static variables */
 128 /*------------------*/
 129 static const char *CCA4758_LIB_NAME = NULL;
 130 static const char *get_CCA4758_LIB_NAME(void)
 131         {
 132         if(CCA4758_LIB_NAME)
 133                 return CCA4758_LIB_NAME;
 134         return CCA_LIB_NAME;
 135         }
 136 static void free_CCA4758_LIB_NAME(void)
 137         {
 138         if(CCA4758_LIB_NAME)
 139                 OPENSSL_free((void*)CCA4758_LIB_NAME);
 140         CCA4758_LIB_NAME = NULL;
 141         }
 142 static long set_CCA4758_LIB_NAME(const char *name)
 143         {
 144         free_CCA4758_LIB_NAME();
 145         return (((CCA4758_LIB_NAME = BUF_strdup(name)) != NULL) ? 1 : 0);
 146         }
 147 #ifndef OPENSSL_NO_RSA
 148 static const char* n_keyRecordRead = CSNDKRR;
 149 static const char* n_digitalSignatureGenerate = CSNDDSG;
 150 static const char* n_digitalSignatureVerify = CSNDDSV;
 151 static const char* n_publicKeyExtract = CSNDPKX;
 152 static const char* n_pkaEncrypt = CSNDPKE;
 153 static const char* n_pkaDecrypt = CSNDPKD;
 154 #endif
 155 static const char* n_randomNumberGenerate = CSNBRNG;
 156
 157 static int hndidx = -1;
 158 static DSO *dso = NULL;
 159
 160 /* openssl engine initialization structures */
 161 /*------------------------------------------*/
 162
 163 #define CCA4758_CMD_SO_PATH             ENGINE_CMD_BASE
 164 static const ENGINE_CMD_DEFN    cca4758_cmd_defns[] = {
 165         {CCA4758_CMD_SO_PATH,
 166                 "SO_PATH",
 167                 "Specifies the path to the '4758cca' shared library",
 168                 ENGINE_CMD_FLAG_STRING},
 169         {0, NULL, NULL, 0}
 170         };
 171
 172 #ifndef OPENSSL_NO_RSA
 173 static RSA_METHOD ibm_4758_cca_rsa =
 174         {
 175         "IBM 4758 CCA RSA method",
 176         cca_rsa_pub_enc,
 177         NULL,
 178         NULL,
 179         cca_rsa_priv_dec,
 180         NULL, /*rsa_mod_exp,*/
 181         NULL, /*mod_exp_mont,*/
 182         NULL, /* init */
 183         NULL, /* finish */
 184         RSA_FLAG_SIGN_VER,        /* flags */
 185         NULL, /* app_data */
 186         cca_rsa_sign, /* rsa_sign */
 187         cca_rsa_verify, /* rsa_verify */
 188         NULL /* rsa_keygen */
 189         };
 190 #endif
 191
 192 static RAND_METHOD ibm_4758_cca_rand =
 193         {
 194         /* "IBM 4758 RAND method", */
 195         NULL, /* seed */
 196         cca_get_random_bytes, /* get random bytes from the card */
 197         NULL, /* cleanup */
 198         NULL, /* add */
 199         cca_get_random_bytes, /* pseudo rand */
 200         cca_random_status, /* status */
 201         };
 202
 203 static const char *engine_4758_cca_id = "4758cca";
 204 static const char *engine_4758_cca_name = "IBM 4758 CCA hardware engine support";
 205 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 206 /* Compatibility hack, the dynamic library uses this form in the path */
 207 static const char *engine_4758_cca_id_alt = "4758_cca";
 208 #endif
 209
 210 /* engine implementation */
 211 /*-----------------------*/
 212 static int bind_helper(ENGINE *e)
 213         {
 214         if(!ENGINE_set_id(e, engine_4758_cca_id) ||
 215                         !ENGINE_set_name(e, engine_4758_cca_name) ||
 216 #ifndef OPENSSL_NO_RSA
 217                         !ENGINE_set_RSA(e, &ibm_4758_cca_rsa) ||
 218 #endif
 219                         !ENGINE_set_RAND(e, &ibm_4758_cca_rand) ||
 220                         !ENGINE_set_destroy_function(e, ibm_4758_cca_destroy) ||
 221                         !ENGINE_set_init_function(e, ibm_4758_cca_init) ||
 222                         !ENGINE_set_finish_function(e, ibm_4758_cca_finish) ||
 223                         !ENGINE_set_ctrl_function(e, ibm_4758_cca_ctrl) ||
 224                         !ENGINE_set_load_privkey_function(e, ibm_4758_load_privkey) ||
 225                         !ENGINE_set_load_pubkey_function(e, ibm_4758_load_pubkey) ||
 226                         !ENGINE_set_cmd_defns(e, cca4758_cmd_defns))
 227                 return 0;
 228         /* Ensure the error handling is set up */
 229         ERR_load_CCA4758_strings();
 230         return 1;
 231         }
 232
 233 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
 234 static ENGINE *engine_4758_cca(void)
 235         {
 236         ENGINE *ret = ENGINE_new();
 237         if(!ret)
 238                 return NULL;
 239         if(!bind_helper(ret))
 240                 {
 241                 ENGINE_free(ret);
 242                 return NULL;
 243                 }
 244         return ret;
 245         }
 246
 247 void ENGINE_load_4758cca(void)
 248         {
 249         ENGINE *e_4758 = engine_4758_cca();
 250         if (!e_4758) return;
 251         ENGINE_add(e_4758);
 252         ENGINE_free(e_4758);
 253         ERR_clear_error();
 254         }
 255 #endif
 256
 257 static int ibm_4758_cca_destroy(ENGINE *e)
 258         {
 259         ERR_unload_CCA4758_strings();
 260         free_CCA4758_LIB_NAME();
 261         return 1;
 262         }
 263
 264 static int ibm_4758_cca_init(ENGINE *e)
 265         {
 266         if(dso)
 267                 {
 268                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_ALREADY_LOADED);
 269                 goto err;
 270                 }
 271
 272         dso = DSO_load(NULL, get_CCA4758_LIB_NAME(), NULL, 0);
 273         if(!dso)
 274                 {
 275                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 276                 goto err;
 277                 }
 278
 279 #ifndef OPENSSL_NO_RSA
 280         if(!(keyRecordRead = (F_KEYRECORDREAD)
 281                                 DSO_bind_func(dso, n_keyRecordRead)) ||
 282                         !(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
 283                                 DSO_bind_func(dso, n_randomNumberGenerate)) ||
 284                         !(digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)
 285                                 DSO_bind_func(dso, n_digitalSignatureGenerate)) ||
 286                         !(digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)
 287                                 DSO_bind_func(dso, n_digitalSignatureVerify)) ||
 288                         !(publicKeyExtract = (F_PUBLICKEYEXTRACT)
 289                                 DSO_bind_func(dso, n_publicKeyExtract)) ||
 290                         !(pkaEncrypt = (F_PKAENCRYPT)
 291                                 DSO_bind_func(dso, n_pkaEncrypt)) ||
 292                         !(pkaDecrypt = (F_PKADECRYPT)
 293                                 DSO_bind_func(dso, n_pkaDecrypt)))
 294                 {
 295                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 296                 goto err;
 297                 }
 298 #else
 299         if(!(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
 300                                 DSO_bind_func(dso, n_randomNumberGenerate)))
 301                 {
 302                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 303                 goto err;
 304                 }
 305 #endif
 306
 307         hndidx = RSA_get_ex_new_index(0, "IBM 4758 CCA RSA key handle",
 308                 NULL, NULL, cca_ex_free);
 309
 310         return 1;
 311 err:
 312         if(dso)
 313                 DSO_free(dso);
 314         dso = NULL;
 315
 316         keyRecordRead = (F_KEYRECORDREAD)0;
 317         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 318         digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
 319         digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
 320         publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
 321         pkaEncrypt = (F_PKAENCRYPT)0;
 322         pkaDecrypt = (F_PKADECRYPT)0;
 323         return 0;
 324         }
 325
 326 static int ibm_4758_cca_finish(ENGINE *e)
 327         {
 328         free_CCA4758_LIB_NAME();
 329         if(!dso)
 330                 {
 331                 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
 332                                 CCA4758_R_NOT_LOADED);
 333                 return 0;
 334                 }
 335         if(!DSO_free(dso))
 336                 {
 337                 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
 338                                 CCA4758_R_UNIT_FAILURE);
 339                 return 0;
 340                 }
 341         dso = NULL;
 342         keyRecordRead = (F_KEYRECORDREAD)0;
 343         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 344         digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
 345         digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
 346         publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
 347         pkaEncrypt = (F_PKAENCRYPT)0;
 348         pkaDecrypt = (F_PKADECRYPT)0;
 349         return 1;
 350         }
 351
 352 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 353         {
 354         int initialised = ((dso == NULL) ? 0 : 1);
 355         switch(cmd)
 356                 {
 357         case CCA4758_CMD_SO_PATH:
 358                 if(p == NULL)
 359                         {
 360                         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 361                                         ERR_R_PASSED_NULL_PARAMETER);
 362                         return 0;
 363                         }
 364                 if(initialised)
 365                         {
 366                         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 367                                         CCA4758_R_ALREADY_LOADED);
 368                         return 0;
 369                         }
 370                 return set_CCA4758_LIB_NAME((const char *)p);
 371         default:
 372                 break;
 373                 }
 374         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 375                         CCA4758_R_COMMAND_NOT_IMPLEMENTED);
 376         return 0;
 377         }
 378
 379 #ifndef OPENSSL_NO_RSA
 380
 381 #define MAX_CCA_PKA_TOKEN_SIZE 2500
 382
 383 static EVP_PKEY *ibm_4758_load_privkey(ENGINE* e, const char* key_id,
 384                         UI_METHOD *ui_method, void *callback_data)
 385         {
 386         RSA *rtmp = NULL;
 387         EVP_PKEY *res = NULL;
 388         unsigned char* keyToken = NULL;
 389         unsigned char pubKeyToken[MAX_CCA_PKA_TOKEN_SIZE];
 390         long pubKeyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 391         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 392         long returnCode;
 393         long reasonCode;
 394         long exitDataLength = 0;
 395         long ruleArrayLength = 0;
 396         unsigned char exitData[8];
 397         unsigned char ruleArray[8];
 398         unsigned char keyLabel[64];
 399         unsigned long keyLabelLength = strlen(key_id);
 400         unsigned char modulus[256];
 401         long modulusFieldLength = sizeof(modulus);
 402         long modulusLength = 0;
 403         unsigned char exponent[256];
 404         long exponentLength = sizeof(exponent);
 405
 406         if (keyLabelLength > sizeof(keyLabel))
 407                 {
 408                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 409                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 410                 return NULL;
 411                 }
 412
 413         memset(keyLabel,' ', sizeof(keyLabel));
 414         memcpy(keyLabel, key_id, keyLabelLength);
 415
 416         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 417         if (!keyToken)
 418                 {
 419                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 420                                 ERR_R_MALLOC_FAILURE);
 421                 goto err;
 422                 }
 423
 424         keyRecordRead(&returnCode, &reasonCode, &exitDataLength,
 425                 exitData, &ruleArrayLength, ruleArray, keyLabel,
 426                 &keyTokenLength, keyToken+sizeof(long));
 427
 428         if (returnCode)
 429                 {
 430                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 431                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 432                 goto err;
 433                 }
 434
 435         publicKeyExtract(&returnCode, &reasonCode, &exitDataLength,
 436                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 437                 keyToken+sizeof(long), &pubKeyTokenLength, pubKeyToken);
 438
 439         if (returnCode)
 440                 {
 441                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 442                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 443                 goto err;
 444                 }
 445
 446         if (!getModulusAndExponent(pubKeyToken, &exponentLength,
 447                         exponent, &modulusLength, &modulusFieldLength,
 448                         modulus))
 449                 {
 450                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 451                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 452                 goto err;
 453                 }
 454
 455         (*(long*)keyToken) = keyTokenLength;
 456         rtmp = RSA_new_method(e);
 457         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 458
 459         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 460         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 461         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 462
 463         res = EVP_PKEY_new();
 464         EVP_PKEY_assign_RSA(res, rtmp);
 465
 466         return res;
 467 err:
 468         if (keyToken)
 469                 OPENSSL_free(keyToken);
 470         if (res)
 471                 EVP_PKEY_free(res);
 472         if (rtmp)
 473                 RSA_free(rtmp);
 474         return NULL;
 475         }
 476
 477 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE* e, const char* key_id,
 478                         UI_METHOD *ui_method, void *callback_data)
 479         {
 480         RSA *rtmp = NULL;
 481         EVP_PKEY *res = NULL;
 482         unsigned char* keyToken = NULL;
 483         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 484         long returnCode;
 485         long reasonCode;
 486         long exitDataLength = 0;
 487         long ruleArrayLength = 0;
 488         unsigned char exitData[8];
 489         unsigned char ruleArray[8];
 490         unsigned char keyLabel[64];
 491         unsigned long keyLabelLength = strlen(key_id);
 492         unsigned char modulus[512];
 493         long modulusFieldLength = sizeof(modulus);
 494         long modulusLength = 0;
 495         unsigned char exponent[512];
 496         long exponentLength = sizeof(exponent);
 497
 498         if (keyLabelLength > sizeof(keyLabel))
 499                 {
 500                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 501                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 502                 return NULL;
 503                 }
 504
 505         memset(keyLabel,' ', sizeof(keyLabel));
 506         memcpy(keyLabel, key_id, keyLabelLength);
 507
 508         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 509         if (!keyToken)
 510                 {
 511                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 512                                 ERR_R_MALLOC_FAILURE);
 513                 goto err;
 514                 }
 515
 516         keyRecordRead(&returnCode, &reasonCode, &exitDataLength, exitData,
 517                 &ruleArrayLength, ruleArray, keyLabel, &keyTokenLength,
 518                 keyToken+sizeof(long));
 519
 520         if (returnCode)
 521                 {
 522                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 523                                 ERR_R_MALLOC_FAILURE);
 524                 goto err;
 525                 }
 526
 527         if (!getModulusAndExponent(keyToken+sizeof(long), &exponentLength,
 528                         exponent, &modulusLength, &modulusFieldLength, modulus))
 529                 {
 530                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 531                         CCA4758_R_FAILED_LOADING_PUBLIC_KEY);
 532                 goto err;
 533                 }
 534
 535         (*(long*)keyToken) = keyTokenLength;
 536         rtmp = RSA_new_method(e);
 537         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 538         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 539         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 540         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 541         res = EVP_PKEY_new();
 542         EVP_PKEY_assign_RSA(res, rtmp);
 543
 544         return res;
 545 err:
 546         if (keyToken)
 547                 OPENSSL_free(keyToken);
 548         if (res)
 549                 EVP_PKEY_free(res);
 550         if (rtmp)
 551                 RSA_free(rtmp);
 552         return NULL;
 553         }
 554
 555 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
 556                         unsigned char *to, RSA *rsa,int padding)
 557         {
 558         long returnCode;
 559         long reasonCode;
 560         long lflen = flen;
 561         long exitDataLength = 0;
 562         unsigned char exitData[8];
 563         long ruleArrayLength = 1;
 564         unsigned char ruleArray[8] = "PKCS-1.2";
 565         long dataStructureLength = 0;
 566         unsigned char dataStructure[8];
 567         long outputLength = RSA_size(rsa);
 568         long keyTokenLength;
 569         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 570
 571         keyTokenLength = *(long*)keyToken;
 572         keyToken+=sizeof(long);
 573
 574         pkaEncrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 575                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 576                 &dataStructureLength, dataStructure, &keyTokenLength,
 577                 keyToken, &outputLength, to);
 578
 579         if (returnCode || reasonCode)
 580                 return -(returnCode << 16 | reasonCode);
 581         return outputLength;
 582         }
 583
 584 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
 585                         unsigned char *to, RSA *rsa,int padding)
 586         {
 587         long returnCode;
 588         long reasonCode;
 589         long lflen = flen;
 590         long exitDataLength = 0;
 591         unsigned char exitData[8];
 592         long ruleArrayLength = 1;
 593         unsigned char ruleArray[8] = "PKCS-1.2";
 594         long dataStructureLength = 0;
 595         unsigned char dataStructure[8];
 596         long outputLength = RSA_size(rsa);
 597         long keyTokenLength;
 598         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 599
 600         keyTokenLength = *(long*)keyToken;
 601         keyToken+=sizeof(long);
 602
 603         pkaDecrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 604                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 605                 &dataStructureLength, dataStructure, &keyTokenLength,
 606                 keyToken, &outputLength, to);
 607
 608         return (returnCode | reasonCode) ? 0 : 1;
 609         }
 610
 611 #define SSL_SIG_LEN 36
 612
 613 static int cca_rsa_verify(int type, const unsigned char *m, unsigned int m_len,
 614                 unsigned char *sigbuf, unsigned int siglen, const RSA *rsa)
 615         {
 616         long returnCode;
 617         long reasonCode;
 618         long lsiglen = siglen;
 619         long exitDataLength = 0;
 620         unsigned char exitData[8];
 621         long ruleArrayLength = 1;
 622         unsigned char ruleArray[8] = "PKCS-1.1";
 623         long keyTokenLength;
 624         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 625         long length = SSL_SIG_LEN;
 626         long keyLength ;
 627         unsigned char *hashBuffer = NULL;
 628         X509_SIG sig;
 629         ASN1_TYPE parameter;
 630         X509_ALGOR algorithm;
 631         ASN1_OCTET_STRING digest;
 632
 633         keyTokenLength = *(long*)keyToken;
 634         keyToken+=sizeof(long);
 635
 636         if (type == NID_md5 || type == NID_sha1)
 637                 {
 638                 sig.algor = &algorithm;
 639                 algorithm.algorithm = OBJ_nid2obj(type);
 640
 641                 if (!algorithm.algorithm)
 642                         {
 643                         CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 644                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 645                         return 0;
 646                         }
 647
 648                 if (!algorithm.algorithm->length)
 649                         {
 650                         CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 651                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 652                         return 0;
 653                         }
 654
 655                 parameter.type = V_ASN1_NULL;
 656                 parameter.value.ptr = NULL;
 657                 algorithm.parameter = &parameter;
 658
 659                 sig.digest = &digest;
 660                 sig.digest->data = (unsigned char*)m;
 661                 sig.digest->length = m_len;
 662
 663                 length = i2d_X509_SIG(&sig, NULL);
 664                 }
 665
 666         keyLength = RSA_size(rsa);
 667
 668         if (length - RSA_PKCS1_PADDING > keyLength)
 669                 {
 670                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 671                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 672                 return 0;
 673                 }
 674
 675         switch (type)
 676                 {
 677                 case NID_md5_sha1 :
 678                         if (m_len != SSL_SIG_LEN)
 679                                 {
 680                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 681                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 682                                 return 0;
 683                                 }
 684
 685                         hashBuffer = (unsigned char *)m;
 686                         length = m_len;
 687                         break;
 688                 case NID_md5 :
 689                         {
 690                         unsigned char *ptr;
 691                         ptr = hashBuffer = OPENSSL_malloc(
 692                                         (unsigned int)keyLength+1);
 693                         if (!hashBuffer)
 694                                 {
 695                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 696                                                 ERR_R_MALLOC_FAILURE);
 697                                 return 0;
 698                                 }
 699
 700                         i2d_X509_SIG(&sig, &ptr);
 701                         }
 702                         break;
 703                 case NID_sha1 :
 704                         {
 705                         unsigned char *ptr;
 706                         ptr = hashBuffer = OPENSSL_malloc(
 707                                         (unsigned int)keyLength+1);
 708                         if (!hashBuffer)
 709                                 {
 710                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 711                                                 ERR_R_MALLOC_FAILURE);
 712                                 return 0;
 713                                 }
 714                         i2d_X509_SIG(&sig, &ptr);
 715                         }
 716                         break;
 717                 default:
 718                         return 0;
 719                 }
 720
 721         digitalSignatureVerify(&returnCode, &reasonCode, &exitDataLength,
 722                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 723                 keyToken, &length, hashBuffer, &lsiglen, sigbuf);
 724
 725         if (type == NID_sha1 || type == NID_md5)
 726                 {
 727                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 728                 OPENSSL_free(hashBuffer);
 729                 }
 730
 731         return ((returnCode || reasonCode) ? 0 : 1);
 732         }
 733
 734 #define SSL_SIG_LEN 36
 735
 736 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
 737                 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 738         {
 739         long returnCode;
 740         long reasonCode;
 741         long exitDataLength = 0;
 742         unsigned char exitData[8];
 743         long ruleArrayLength = 1;
 744         unsigned char ruleArray[8] = "PKCS-1.1";
 745         long outputLength=256;
 746         long outputBitLength;
 747         long keyTokenLength;
 748         unsigned char *hashBuffer = NULL;
 749         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 750         long length = SSL_SIG_LEN;
 751         long keyLength ;
 752         X509_SIG sig;
 753         ASN1_TYPE parameter;
 754         X509_ALGOR algorithm;
 755         ASN1_OCTET_STRING digest;
 756
 757         keyTokenLength = *(long*)keyToken;
 758         keyToken+=sizeof(long);
 759
 760         if (type == NID_md5 || type == NID_sha1)
 761                 {
 762                 sig.algor = &algorithm;
 763                 algorithm.algorithm = OBJ_nid2obj(type);
 764
 765                 if (!algorithm.algorithm)
 766                         {
 767                         CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 768                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 769                         return 0;
 770                         }
 771
 772                 if (!algorithm.algorithm->length)
 773                         {
 774                         CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 775                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 776                         return 0;
 777                         }
 778
 779                 parameter.type = V_ASN1_NULL;
 780                 parameter.value.ptr = NULL;
 781                 algorithm.parameter = &parameter;
 782
 783                 sig.digest = &digest;
 784                 sig.digest->data = (unsigned char*)m;
 785                 sig.digest->length = m_len;
 786
 787                 length = i2d_X509_SIG(&sig, NULL);
 788                 }
 789
 790         keyLength = RSA_size(rsa);
 791
 792         if (length - RSA_PKCS1_PADDING > keyLength)
 793                 {
 794                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 795                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 796                 return 0;
 797                 }
 798
 799         switch (type)
 800                 {
 801                 case NID_md5_sha1 :
 802                         if (m_len != SSL_SIG_LEN)
 803                                 {
 804                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 805                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 806                                 return 0;
 807                                 }
 808                         hashBuffer = (unsigned char*)m;
 809                         length = m_len;
 810                         break;
 811                 case NID_md5 :
 812                         {
 813                         unsigned char *ptr;
 814                         ptr = hashBuffer = OPENSSL_malloc(
 815                                         (unsigned int)keyLength+1);
 816                         if (!hashBuffer)
 817                                 {
 818                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 819                                                 ERR_R_MALLOC_FAILURE);
 820                                 return 0;
 821                                 }
 822                         i2d_X509_SIG(&sig, &ptr);
 823                         }
 824                         break;
 825                 case NID_sha1 :
 826                         {
 827                         unsigned char *ptr;
 828                         ptr = hashBuffer = OPENSSL_malloc(
 829                                         (unsigned int)keyLength+1);
 830                         if (!hashBuffer)
 831                                 {
 832                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 833                                                 ERR_R_MALLOC_FAILURE);
 834                                 return 0;
 835                                 }
 836                         i2d_X509_SIG(&sig, &ptr);
 837                         }
 838                         break;
 839                 default:
 840                         return 0;
 841                 }
 842
 843         digitalSignatureGenerate(&returnCode, &reasonCode, &exitDataLength,
 844                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 845                 keyToken, &length, hashBuffer, &outputLength, &outputBitLength,
 846                 sigret);
 847
 848         if (type == NID_sha1 || type == NID_md5)
 849                 {
 850                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 851                 OPENSSL_free(hashBuffer);
 852                 }
 853
 854         *siglen = outputLength;
 855
 856         return ((returnCode || reasonCode) ? 0 : 1);
 857         }
 858
 859 static int getModulusAndExponent(const unsigned char*token, long *exponentLength,
 860                 unsigned char *exponent, long *modulusLength, long *modulusFieldLength,
 861                 unsigned char *modulus)
 862         {
 863         unsigned long len;
 864
 865         if (*token++ != (char)0x1E) /* internal PKA token? */
 866                 return 0;
 867
 868         if (*token++) /* token version must be zero */
 869                 return 0;
 870
 871         len = *token++;
 872         len = len << 8;
 873         len |= (unsigned char)*token++;
 874
 875         token += 4; /* skip reserved bytes */
 876
 877         if (*token++ == (char)0x04)
 878                 {
 879                 if (*token++) /* token version must be zero */
 880                         return 0;
 881
 882                 len = *token++;
 883                 len = len << 8;
 884                 len |= (unsigned char)*token++;
 885
 886                 token+=2; /* skip reserved section */
 887
 888                 len = *token++;
 889                 len = len << 8;
 890                 len |= (unsigned char)*token++;
 891
 892                 *exponentLength = len;
 893
 894                 len = *token++;
 895                 len = len << 8;
 896                 len |= (unsigned char)*token++;
 897
 898                 *modulusLength = len;
 899
 900                 len = *token++;
 901                 len = len << 8;
 902                 len |= (unsigned char)*token++;
 903
 904                 *modulusFieldLength = len;
 905
 906                 memcpy(exponent, token, *exponentLength);
 907                 token+= *exponentLength;
 908
 909                 memcpy(modulus, token, *modulusFieldLength);
 910                 return 1;
 911                 }
 912         return 0;
 913         }
 914
 915 #endif /* OPENSSL_NO_RSA */
 916
 917 static int cca_random_status(void)
 918         {
 919         return 1;
 920         }
 921
 922 static int cca_get_random_bytes(unsigned char* buf, int num)
 923         {
 924         long ret_code;
 925         long reason_code;
 926         long exit_data_length;
 927         unsigned char exit_data[4];
 928         unsigned char form[] = "RANDOM  ";
 929         unsigned char rand_buf[8];
 930
 931         while(num >= (int)sizeof(rand_buf))
 932                 {
 933                 randomNumberGenerate(&ret_code, &reason_code, &exit_data_length,
 934                         exit_data, form, rand_buf);
 935                 if (ret_code)
 936                         return 0;
 937                 num -= sizeof(rand_buf);
 938                 memcpy(buf, rand_buf, sizeof(rand_buf));
 939                 buf += sizeof(rand_buf);
 940                 }
 941
 942         if (num)
 943                 {
 944                 randomNumberGenerate(&ret_code, &reason_code, NULL, NULL,
 945                         form, rand_buf);
 946                 if (ret_code)
 947                         return 0;
 948                 memcpy(buf, rand_buf, num);
 949                 }
 950
 951         return 1;
 952         }
 953
 954 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, int idx,
 955                 long argl, void *argp)
 956         {
 957         if (item)
 958                 OPENSSL_free(item);
 959         }
 960
 961 /* Goo to handle building as a dynamic engine */
 962 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 963 static int bind_fn(ENGINE *e, const char *id)
 964         {
 965         if(id && (strcmp(id, engine_4758_cca_id) != 0) &&
 966                         (strcmp(id, engine_4758_cca_id_alt) != 0))
 967                 return 0;
 968         if(!bind_helper(e))
 969                 return 0;
 970         return 1;
 971         }
 972 IMPLEMENT_DYNAMIC_CHECK_FN()
 973 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
 974 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
 975
 976 #endif /* !OPENSSL_NO_HW_4758_CCA */
 977 #endif /* !OPENSSL_NO_HW */