engines/e_4758_cca.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_4758_cca_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
 206 /* engine implementation */
 207 /*-----------------------*/
 208 static int bind_helper(ENGINE *e)
 209         {
 210         if(!ENGINE_set_id(e, engine_4758_cca_id) ||
 211                         !ENGINE_set_name(e, engine_4758_cca_name) ||
 212 #ifndef OPENSSL_NO_RSA
 213                         !ENGINE_set_RSA(e, &ibm_4758_cca_rsa) ||
 214 #endif
 215                         !ENGINE_set_RAND(e, &ibm_4758_cca_rand) ||
 216                         !ENGINE_set_destroy_function(e, ibm_4758_cca_destroy) ||
 217                         !ENGINE_set_init_function(e, ibm_4758_cca_init) ||
 218                         !ENGINE_set_finish_function(e, ibm_4758_cca_finish) ||
 219                         !ENGINE_set_ctrl_function(e, ibm_4758_cca_ctrl) ||
 220                         !ENGINE_set_load_privkey_function(e, ibm_4758_load_privkey) ||
 221                         !ENGINE_set_load_pubkey_function(e, ibm_4758_load_pubkey) ||
 222                         !ENGINE_set_cmd_defns(e, cca4758_cmd_defns))
 223                 return 0;
 224         /* Ensure the error handling is set up */
 225         ERR_load_CCA4758_strings();
 226         return 1;
 227         }
 228
 229 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
 230 static ENGINE *engine_4758_cca(void)
 231         {
 232         ENGINE *ret = ENGINE_new();
 233         if(!ret)
 234                 return NULL;
 235         if(!bind_helper(ret))
 236                 {
 237                 ENGINE_free(ret);
 238                 return NULL;
 239                 }
 240         return ret;
 241         }
 242
 243 void ENGINE_load_4758cca(void)
 244         {
 245         ENGINE *e_4758 = engine_4758_cca();
 246         if (!e_4758) return;
 247         ENGINE_add(e_4758);
 248         ENGINE_free(e_4758);
 249         ERR_clear_error();
 250         }
 251 #endif
 252
 253 static int ibm_4758_cca_destroy(ENGINE *e)
 254         {
 255         ERR_unload_CCA4758_strings();
 256         free_CCA4758_LIB_NAME();
 257         return 1;
 258         }
 259
 260 static int ibm_4758_cca_init(ENGINE *e)
 261         {
 262         if(dso)
 263                 {
 264                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_ALREADY_LOADED);
 265                 goto err;
 266                 }
 267
 268         dso = DSO_load(NULL, get_CCA4758_LIB_NAME(), NULL, 0);
 269         if(!dso)
 270                 {
 271                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 272                 goto err;
 273                 }
 274
 275 #ifndef OPENSSL_NO_RSA
 276         if(!(keyRecordRead = (F_KEYRECORDREAD)
 277                                 DSO_bind_func(dso, n_keyRecordRead)) ||
 278                         !(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
 279                                 DSO_bind_func(dso, n_randomNumberGenerate)) ||
 280                         !(digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)
 281                                 DSO_bind_func(dso, n_digitalSignatureGenerate)) ||
 282                         !(digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)
 283                                 DSO_bind_func(dso, n_digitalSignatureVerify)) ||
 284                         !(publicKeyExtract = (F_PUBLICKEYEXTRACT)
 285                                 DSO_bind_func(dso, n_publicKeyExtract)) ||
 286                         !(pkaEncrypt = (F_PKAENCRYPT)
 287                                 DSO_bind_func(dso, n_pkaEncrypt)) ||
 288                         !(pkaDecrypt = (F_PKADECRYPT)
 289                                 DSO_bind_func(dso, n_pkaDecrypt)))
 290                 {
 291                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 292                 goto err;
 293                 }
 294 #else
 295         if(!(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
 296                                 DSO_bind_func(dso, n_randomNumberGenerate)))
 297                 {
 298                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 299                 goto err;
 300                 }
 301 #endif
 302
 303         hndidx = RSA_get_ex_new_index(0, "IBM 4758 CCA RSA key handle",
 304                 NULL, NULL, cca_ex_free);
 305
 306         return 1;
 307 err:
 308         if(dso)
 309                 DSO_free(dso);
 310         dso = NULL;
 311
 312         keyRecordRead = (F_KEYRECORDREAD)0;
 313         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 314         digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
 315         digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
 316         publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
 317         pkaEncrypt = (F_PKAENCRYPT)0;
 318         pkaDecrypt = (F_PKADECRYPT)0;
 319         return 0;
 320         }
 321
 322 static int ibm_4758_cca_finish(ENGINE *e)
 323         {
 324         free_CCA4758_LIB_NAME();
 325         if(!dso)
 326                 {
 327                 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
 328                                 CCA4758_R_NOT_LOADED);
 329                 return 0;
 330                 }
 331         if(!DSO_free(dso))
 332                 {
 333                 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
 334                                 CCA4758_R_UNIT_FAILURE);
 335                 return 0;
 336                 }
 337         dso = NULL;
 338         keyRecordRead = (F_KEYRECORDREAD)0;
 339         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 340         digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
 341         digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
 342         publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
 343         pkaEncrypt = (F_PKAENCRYPT)0;
 344         pkaDecrypt = (F_PKADECRYPT)0;
 345         return 1;
 346         }
 347
 348 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 349         {
 350         int initialised = ((dso == NULL) ? 0 : 1);
 351         switch(cmd)
 352                 {
 353         case CCA4758_CMD_SO_PATH:
 354                 if(p == NULL)
 355                         {
 356                         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 357                                         ERR_R_PASSED_NULL_PARAMETER);
 358                         return 0;
 359                         }
 360                 if(initialised)
 361                         {
 362                         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 363                                         CCA4758_R_ALREADY_LOADED);
 364                         return 0;
 365                         }
 366                 return set_CCA4758_LIB_NAME((const char *)p);
 367         default:
 368                 break;
 369                 }
 370         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 371                         CCA4758_R_COMMAND_NOT_IMPLEMENTED);
 372         return 0;
 373         }
 374
 375 #ifndef OPENSSL_NO_RSA
 376
 377 #define MAX_CCA_PKA_TOKEN_SIZE 2500
 378
 379 static EVP_PKEY *ibm_4758_load_privkey(ENGINE* e, const char* key_id,
 380                         UI_METHOD *ui_method, void *callback_data)
 381         {
 382         RSA *rtmp = NULL;
 383         EVP_PKEY *res = NULL;
 384         unsigned char* keyToken = NULL;
 385         unsigned char pubKeyToken[MAX_CCA_PKA_TOKEN_SIZE];
 386         long pubKeyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 387         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 388         long returnCode;
 389         long reasonCode;
 390         long exitDataLength = 0;
 391         long ruleArrayLength = 0;
 392         unsigned char exitData[8];
 393         unsigned char ruleArray[8];
 394         unsigned char keyLabel[64];
 395         unsigned long keyLabelLength = strlen(key_id);
 396         unsigned char modulus[256];
 397         long modulusFieldLength = sizeof(modulus);
 398         long modulusLength = 0;
 399         unsigned char exponent[256];
 400         long exponentLength = sizeof(exponent);
 401
 402         if (keyLabelLength > sizeof(keyLabel))
 403                 {
 404                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 405                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 406                 return NULL;
 407                 }
 408
 409         memset(keyLabel,' ', sizeof(keyLabel));
 410         memcpy(keyLabel, key_id, keyLabelLength);
 411
 412         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 413         if (!keyToken)
 414                 {
 415                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 416                                 ERR_R_MALLOC_FAILURE);
 417                 goto err;
 418                 }
 419
 420         keyRecordRead(&returnCode, &reasonCode, &exitDataLength,
 421                 exitData, &ruleArrayLength, ruleArray, keyLabel,
 422                 &keyTokenLength, keyToken+sizeof(long));
 423
 424         if (returnCode)
 425                 {
 426                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 427                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 428                 goto err;
 429                 }
 430
 431         publicKeyExtract(&returnCode, &reasonCode, &exitDataLength,
 432                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 433                 keyToken+sizeof(long), &pubKeyTokenLength, pubKeyToken);
 434
 435         if (returnCode)
 436                 {
 437                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 438                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 439                 goto err;
 440                 }
 441
 442         if (!getModulusAndExponent(pubKeyToken, &exponentLength,
 443                         exponent, &modulusLength, &modulusFieldLength,
 444                         modulus))
 445                 {
 446                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 447                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 448                 goto err;
 449                 }
 450
 451         (*(long*)keyToken) = keyTokenLength;
 452         rtmp = RSA_new_method(e);
 453         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 454
 455         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 456         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 457         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 458
 459         res = EVP_PKEY_new();
 460         EVP_PKEY_assign_RSA(res, rtmp);
 461
 462         return res;
 463 err:
 464         if (keyToken)
 465                 OPENSSL_free(keyToken);
 466         if (res)
 467                 EVP_PKEY_free(res);
 468         if (rtmp)
 469                 RSA_free(rtmp);
 470         return NULL;
 471         }
 472
 473 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE* e, const char* key_id,
 474                         UI_METHOD *ui_method, void *callback_data)
 475         {
 476         RSA *rtmp = NULL;
 477         EVP_PKEY *res = NULL;
 478         unsigned char* keyToken = NULL;
 479         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 480         long returnCode;
 481         long reasonCode;
 482         long exitDataLength = 0;
 483         long ruleArrayLength = 0;
 484         unsigned char exitData[8];
 485         unsigned char ruleArray[8];
 486         unsigned char keyLabel[64];
 487         unsigned long keyLabelLength = strlen(key_id);
 488         unsigned char modulus[512];
 489         long modulusFieldLength = sizeof(modulus);
 490         long modulusLength = 0;
 491         unsigned char exponent[512];
 492         long exponentLength = sizeof(exponent);
 493
 494         if (keyLabelLength > sizeof(keyLabel))
 495                 {
 496                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 497                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 498                 return NULL;
 499                 }
 500
 501         memset(keyLabel,' ', sizeof(keyLabel));
 502         memcpy(keyLabel, key_id, keyLabelLength);
 503
 504         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 505         if (!keyToken)
 506                 {
 507                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PUBKEY,
 508                                 ERR_R_MALLOC_FAILURE);
 509                 goto err;
 510                 }
 511
 512         keyRecordRead(&returnCode, &reasonCode, &exitDataLength, exitData,
 513                 &ruleArrayLength, ruleArray, keyLabel, &keyTokenLength,
 514                 keyToken+sizeof(long));
 515
 516         if (returnCode)
 517                 {
 518                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 519                                 ERR_R_MALLOC_FAILURE);
 520                 goto err;
 521                 }
 522
 523         if (!getModulusAndExponent(keyToken+sizeof(long), &exponentLength,
 524                         exponent, &modulusLength, &modulusFieldLength, modulus))
 525                 {
 526                 CCA4758err(CCA4758_F_IBM_4758_CCA_LOAD_PRIVKEY,
 527                         CCA4758_R_FAILED_LOADING_PUBLIC_KEY);
 528                 goto err;
 529                 }
 530
 531         (*(long*)keyToken) = keyTokenLength;
 532         rtmp = RSA_new_method(e);
 533         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 534         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 535         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 536         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 537         res = EVP_PKEY_new();
 538         EVP_PKEY_assign_RSA(res, rtmp);
 539
 540         return res;
 541 err:
 542         if (keyToken)
 543                 OPENSSL_free(keyToken);
 544         if (res)
 545                 EVP_PKEY_free(res);
 546         if (rtmp)
 547                 RSA_free(rtmp);
 548         return NULL;
 549         }
 550
 551 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
 552                         unsigned char *to, RSA *rsa,int padding)
 553         {
 554         long returnCode;
 555         long reasonCode;
 556         long lflen = flen;
 557         long exitDataLength = 0;
 558         unsigned char exitData[8];
 559         long ruleArrayLength = 1;
 560         unsigned char ruleArray[8] = "PKCS-1.2";
 561         long dataStructureLength = 0;
 562         unsigned char dataStructure[8];
 563         long outputLength = RSA_size(rsa);
 564         long keyTokenLength;
 565         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 566
 567         keyTokenLength = *(long*)keyToken;
 568         keyToken+=sizeof(long);
 569
 570         pkaEncrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 571                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 572                 &dataStructureLength, dataStructure, &keyTokenLength,
 573                 keyToken, &outputLength, to);
 574
 575         if (returnCode || reasonCode)
 576                 return -(returnCode << 16 | reasonCode);
 577         return outputLength;
 578         }
 579
 580 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
 581                         unsigned char *to, RSA *rsa,int padding)
 582         {
 583         long returnCode;
 584         long reasonCode;
 585         long lflen = flen;
 586         long exitDataLength = 0;
 587         unsigned char exitData[8];
 588         long ruleArrayLength = 1;
 589         unsigned char ruleArray[8] = "PKCS-1.2";
 590         long dataStructureLength = 0;
 591         unsigned char dataStructure[8];
 592         long outputLength = RSA_size(rsa);
 593         long keyTokenLength;
 594         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 595
 596         keyTokenLength = *(long*)keyToken;
 597         keyToken+=sizeof(long);
 598
 599         pkaDecrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 600                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 601                 &dataStructureLength, dataStructure, &keyTokenLength,
 602                 keyToken, &outputLength, to);
 603
 604         return (returnCode | reasonCode) ? 0 : 1;
 605         }
 606
 607 #define SSL_SIG_LEN 36
 608
 609 static int cca_rsa_verify(int type, const unsigned char *m, unsigned int m_len,
 610                 unsigned char *sigbuf, unsigned int siglen, const RSA *rsa)
 611         {
 612         long returnCode;
 613         long reasonCode;
 614         long lsiglen = siglen;
 615         long exitDataLength = 0;
 616         unsigned char exitData[8];
 617         long ruleArrayLength = 1;
 618         unsigned char ruleArray[8] = "PKCS-1.1";
 619         long keyTokenLength;
 620         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 621         long length = SSL_SIG_LEN;
 622         long keyLength ;
 623         unsigned char *hashBuffer = NULL;
 624         X509_SIG sig;
 625         ASN1_TYPE parameter;
 626         X509_ALGOR algorithm;
 627         ASN1_OCTET_STRING digest;
 628
 629         keyTokenLength = *(long*)keyToken;
 630         keyToken+=sizeof(long);
 631
 632         if (type == NID_md5 || type == NID_sha1)
 633                 {
 634                 sig.algor = &algorithm;
 635                 algorithm.algorithm = OBJ_nid2obj(type);
 636
 637                 if (!algorithm.algorithm)
 638                         {
 639                         CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 640                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 641                         return 0;
 642                         }
 643
 644                 if (!algorithm.algorithm->length)
 645                         {
 646                         CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 647                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 648                         return 0;
 649                         }
 650
 651                 parameter.type = V_ASN1_NULL;
 652                 parameter.value.ptr = NULL;
 653                 algorithm.parameter = &parameter;
 654
 655                 sig.digest = &digest;
 656                 sig.digest->data = (unsigned char*)m;
 657                 sig.digest->length = m_len;
 658
 659                 length = i2d_X509_SIG(&sig, NULL);
 660                 }
 661
 662         keyLength = RSA_size(rsa);
 663
 664         if (length - RSA_PKCS1_PADDING > keyLength)
 665                 {
 666                 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 667                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 668                 return 0;
 669                 }
 670
 671         switch (type)
 672                 {
 673                 case NID_md5_sha1 :
 674                         if (m_len != SSL_SIG_LEN)
 675                                 {
 676                                 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 677                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 678                                 return 0;
 679                                 }
 680
 681                         hashBuffer = (unsigned char *)m;
 682                         length = m_len;
 683                         break;
 684                 case NID_md5 :
 685                         {
 686                         unsigned char *ptr;
 687                         ptr = hashBuffer = OPENSSL_malloc(
 688                                         (unsigned int)keyLength+1);
 689                         if (!hashBuffer)
 690                                 {
 691                                 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 692                                                 ERR_R_MALLOC_FAILURE);
 693                                 return 0;
 694                                 }
 695
 696                         i2d_X509_SIG(&sig, &ptr);
 697                         }
 698                         break;
 699                 case NID_sha1 :
 700                         {
 701                         unsigned char *ptr;
 702                         ptr = hashBuffer = OPENSSL_malloc(
 703                                         (unsigned int)keyLength+1);
 704                         if (!hashBuffer)
 705                                 {
 706                                 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 707                                                 ERR_R_MALLOC_FAILURE);
 708                                 return 0;
 709                                 }
 710                         i2d_X509_SIG(&sig, &ptr);
 711                         }
 712                         break;
 713                 default:
 714                         return 0;
 715                 }
 716
 717         digitalSignatureVerify(&returnCode, &reasonCode, &exitDataLength,
 718                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 719                 keyToken, &length, hashBuffer, &lsiglen, sigbuf);
 720
 721         if (type == NID_sha1 || type == NID_md5)
 722                 {
 723                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 724                 OPENSSL_free(hashBuffer);
 725                 }
 726
 727         return ((returnCode || reasonCode) ? 0 : 1);
 728         }
 729
 730 #define SSL_SIG_LEN 36
 731
 732 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
 733                 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 734         {
 735         long returnCode;
 736         long reasonCode;
 737         long exitDataLength = 0;
 738         unsigned char exitData[8];
 739         long ruleArrayLength = 1;
 740         unsigned char ruleArray[8] = "PKCS-1.1";
 741         long outputLength=256;
 742         long outputBitLength;
 743         long keyTokenLength;
 744         unsigned char *hashBuffer = NULL;
 745         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 746         long length = SSL_SIG_LEN;
 747         long keyLength ;
 748         X509_SIG sig;
 749         ASN1_TYPE parameter;
 750         X509_ALGOR algorithm;
 751         ASN1_OCTET_STRING digest;
 752
 753         keyTokenLength = *(long*)keyToken;
 754         keyToken+=sizeof(long);
 755
 756         if (type == NID_md5 || type == NID_sha1)
 757                 {
 758                 sig.algor = &algorithm;
 759                 algorithm.algorithm = OBJ_nid2obj(type);
 760
 761                 if (!algorithm.algorithm)
 762                         {
 763                         CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
 764                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 765                         return 0;
 766                         }
 767
 768                 if (!algorithm.algorithm->length)
 769                         {
 770                         CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
 771                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 772                         return 0;
 773                         }
 774
 775                 parameter.type = V_ASN1_NULL;
 776                 parameter.value.ptr = NULL;
 777                 algorithm.parameter = &parameter;
 778
 779                 sig.digest = &digest;
 780                 sig.digest->data = (unsigned char*)m;
 781                 sig.digest->length = m_len;
 782
 783                 length = i2d_X509_SIG(&sig, NULL);
 784                 }
 785
 786         keyLength = RSA_size(rsa);
 787
 788         if (length - RSA_PKCS1_PADDING > keyLength)
 789                 {
 790                 CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
 791                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 792                 return 0;
 793                 }
 794
 795         switch (type)
 796                 {
 797                 case NID_md5_sha1 :
 798                         if (m_len != SSL_SIG_LEN)
 799                                 {
 800                                 CCA4758err(CCA4758_F_IBM_4758_CCA_SIGN,
 801                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 802                                 return 0;
 803                                 }
 804                         hashBuffer = (unsigned char*)m;
 805                         length = m_len;
 806                         break;
 807                 case NID_md5 :
 808                         {
 809                         unsigned char *ptr;
 810                         ptr = hashBuffer = OPENSSL_malloc(
 811                                         (unsigned int)keyLength+1);
 812                         if (!hashBuffer)
 813                                 {
 814                                 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 815                                                 ERR_R_MALLOC_FAILURE);
 816                                 return 0;
 817                                 }
 818                         i2d_X509_SIG(&sig, &ptr);
 819                         }
 820                         break;
 821                 case NID_sha1 :
 822                         {
 823                         unsigned char *ptr;
 824                         ptr = hashBuffer = OPENSSL_malloc(
 825                                         (unsigned int)keyLength+1);
 826                         if (!hashBuffer)
 827                                 {
 828                                 CCA4758err(CCA4758_F_IBM_4758_CCA_VERIFY,
 829                                                 ERR_R_MALLOC_FAILURE);
 830                                 return 0;
 831                                 }
 832                         i2d_X509_SIG(&sig, &ptr);
 833                         }
 834                         break;
 835                 default:
 836                         return 0;
 837                 }
 838
 839         digitalSignatureGenerate(&returnCode, &reasonCode, &exitDataLength,
 840                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 841                 keyToken, &length, hashBuffer, &outputLength, &outputBitLength,
 842                 sigret);
 843
 844         if (type == NID_sha1 || type == NID_md5)
 845                 {
 846                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 847                 OPENSSL_free(hashBuffer);
 848                 }
 849
 850         *siglen = outputLength;
 851
 852         return ((returnCode || reasonCode) ? 0 : 1);
 853         }
 854
 855 static int getModulusAndExponent(const unsigned char*token, long *exponentLength,
 856                 unsigned char *exponent, long *modulusLength, long *modulusFieldLength,
 857                 unsigned char *modulus)
 858         {
 859         unsigned long len;
 860
 861         if (*token++ != (char)0x1E) /* internal PKA token? */
 862                 return 0;
 863
 864         if (*token++) /* token version must be zero */
 865                 return 0;
 866
 867         len = *token++;
 868         len = len << 8;
 869         len |= (unsigned char)*token++;
 870
 871         token += 4; /* skip reserved bytes */
 872
 873         if (*token++ == (char)0x04)
 874                 {
 875                 if (*token++) /* token version must be zero */
 876                         return 0;
 877
 878                 len = *token++;
 879                 len = len << 8;
 880                 len |= (unsigned char)*token++;
 881
 882                 token+=2; /* skip reserved section */
 883
 884                 len = *token++;
 885                 len = len << 8;
 886                 len |= (unsigned char)*token++;
 887
 888                 *exponentLength = len;
 889
 890                 len = *token++;
 891                 len = len << 8;
 892                 len |= (unsigned char)*token++;
 893
 894                 *modulusLength = len;
 895
 896                 len = *token++;
 897                 len = len << 8;
 898                 len |= (unsigned char)*token++;
 899
 900                 *modulusFieldLength = len;
 901
 902                 memcpy(exponent, token, *exponentLength);
 903                 token+= *exponentLength;
 904
 905                 memcpy(modulus, token, *modulusFieldLength);
 906                 return 1;
 907                 }
 908         return 0;
 909         }
 910
 911 #endif /* OPENSSL_NO_RSA */
 912
 913 static int cca_random_status(void)
 914         {
 915         return 1;
 916         }
 917
 918 static int cca_get_random_bytes(unsigned char* buf, int num)
 919         {
 920         long ret_code;
 921         long reason_code;
 922         long exit_data_length;
 923         unsigned char exit_data[4];
 924         unsigned char form[] = "RANDOM  ";
 925         unsigned char rand_buf[8];
 926
 927         while(num >= (int)sizeof(rand_buf))
 928                 {
 929                 randomNumberGenerate(&ret_code, &reason_code, &exit_data_length,
 930                         exit_data, form, rand_buf);
 931                 if (ret_code)
 932                         return 0;
 933                 num -= sizeof(rand_buf);
 934                 memcpy(buf, rand_buf, sizeof(rand_buf));
 935                 buf += sizeof(rand_buf);
 936                 }
 937
 938         if (num)
 939                 {
 940                 randomNumberGenerate(&ret_code, &reason_code, NULL, NULL,
 941                         form, rand_buf);
 942                 if (ret_code)
 943                         return 0;
 944                 memcpy(buf, rand_buf, num);
 945                 }
 946
 947         return 1;
 948         }
 949
 950 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, int idx,
 951                 long argl, void *argp)
 952         {
 953         if (item)
 954                 OPENSSL_free(item);
 955         }
 956
 957 /* Goo to handle building as a dynamic engine */
 958 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 959 static int bind_fn(ENGINE *e, const char *id)
 960         {
 961         if(id && (strcmp(id, engine_4758_cca_id) != 0))
 962                 return 0;
 963         if(!bind_helper(e))
 964                 return 0;
 965         return 1;
 966         }
 967 IMPLEMENT_DYNAMIC_CHECK_FN()
 968 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
 969 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
 970
 971 #endif /* !OPENSSL_NO_HW_4758_CCA */
 972 #endif /* !OPENSSL_NO_HW */