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 #ifndef OPENSSL_NO_RSA
  65 #include <openssl/rsa.h>
  66 #endif
  67 #include <openssl/bn.h>
  68
  69 #ifndef OPENSSL_NO_HW
  70 #ifndef OPENSSL_NO_HW_4758_CCA
  71
  72 #ifdef FLAT_INC
  73 #include "hw_4758_cca.h"
  74 #else
  75 #include "vendor_defns/hw_4758_cca.h"
  76 #endif
  77
  78 #include "e_4758cca_err.c"
  79
  80 static int ibm_4758_cca_destroy(ENGINE *e);
  81 static int ibm_4758_cca_init(ENGINE *e);
  82 static int ibm_4758_cca_finish(ENGINE *e);
  83 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
  84
  85 /* rsa functions */
  86 /*---------------*/
  87 #ifndef OPENSSL_NO_RSA
  88 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
  89                 unsigned char *to, RSA *rsa,int padding);
  90 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
  91                 unsigned char *to, RSA *rsa,int padding);
  92 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
  93                 unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
  94 static int cca_rsa_verify(int dtype, const unsigned char *m, unsigned int m_len,
  95         const unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);
  96
  97 /* utility functions */
  98 /*-----------------------*/
  99 static EVP_PKEY *ibm_4758_load_privkey(ENGINE*, const char*,
 100                 UI_METHOD *ui_method, void *callback_data);
 101 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE*, const char*,
 102                 UI_METHOD *ui_method, void *callback_data);
 103
 104 static int getModulusAndExponent(const unsigned char *token, long *exponentLength,
 105                 unsigned char *exponent, long *modulusLength,
 106                 long *modulusFieldLength, unsigned char *modulus);
 107 #endif
 108
 109 /* RAND number functions */
 110 /*-----------------------*/
 111 static int cca_get_random_bytes(unsigned char*, int);
 112 static int cca_random_status(void);
 113
 114 #ifndef OPENSSL_NO_RSA
 115 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
 116                 int idx,long argl, void *argp);
 117 #endif
 118
 119 /* Function pointers for CCA verbs */
 120 /*---------------------------------*/
 121 #ifndef OPENSSL_NO_RSA
 122 static F_KEYRECORDREAD keyRecordRead;
 123 static F_DIGITALSIGNATUREGENERATE digitalSignatureGenerate;
 124 static F_DIGITALSIGNATUREVERIFY digitalSignatureVerify;
 125 static F_PUBLICKEYEXTRACT publicKeyExtract;
 126 static F_PKAENCRYPT pkaEncrypt;
 127 static F_PKADECRYPT pkaDecrypt;
 128 #endif
 129 static F_RANDOMNUMBERGENERATE randomNumberGenerate;
 130
 131 /* static variables */
 132 /*------------------*/
 133 static const char *CCA4758_LIB_NAME = NULL;
 134 static const char *get_CCA4758_LIB_NAME(void)
 135         {
 136         if(CCA4758_LIB_NAME)
 137                 return CCA4758_LIB_NAME;
 138         return CCA_LIB_NAME;
 139         }
 140 static void free_CCA4758_LIB_NAME(void)
 141         {
 142         if(CCA4758_LIB_NAME)
 143                 OPENSSL_free((void*)CCA4758_LIB_NAME);
 144         CCA4758_LIB_NAME = NULL;
 145         }
 146 static long set_CCA4758_LIB_NAME(const char *name)
 147         {
 148         free_CCA4758_LIB_NAME();
 149         return (((CCA4758_LIB_NAME = BUF_strdup(name)) != NULL) ? 1 : 0);
 150         }
 151 #ifndef OPENSSL_NO_RSA
 152 static const char* n_keyRecordRead = CSNDKRR;
 153 static const char* n_digitalSignatureGenerate = CSNDDSG;
 154 static const char* n_digitalSignatureVerify = CSNDDSV;
 155 static const char* n_publicKeyExtract = CSNDPKX;
 156 static const char* n_pkaEncrypt = CSNDPKE;
 157 static const char* n_pkaDecrypt = CSNDPKD;
 158 #endif
 159 static const char* n_randomNumberGenerate = CSNBRNG;
 160
 161 #ifndef OPENSSL_NO_RSA
 162 static int hndidx = -1;
 163 #endif
 164 static DSO *dso = NULL;
 165
 166 /* openssl engine initialization structures */
 167 /*------------------------------------------*/
 168
 169 #define CCA4758_CMD_SO_PATH             ENGINE_CMD_BASE
 170 static const ENGINE_CMD_DEFN    cca4758_cmd_defns[] = {
 171         {CCA4758_CMD_SO_PATH,
 172                 "SO_PATH",
 173                 "Specifies the path to the '4758cca' shared library",
 174                 ENGINE_CMD_FLAG_STRING},
 175         {0, NULL, NULL, 0}
 176         };
 177
 178 #ifndef OPENSSL_NO_RSA
 179 static RSA_METHOD ibm_4758_cca_rsa =
 180         {
 181         "IBM 4758 CCA RSA method",
 182         cca_rsa_pub_enc,
 183         NULL,
 184         NULL,
 185         cca_rsa_priv_dec,
 186         NULL, /*rsa_mod_exp,*/
 187         NULL, /*mod_exp_mont,*/
 188         NULL, /* init */
 189         NULL, /* finish */
 190         RSA_FLAG_SIGN_VER,        /* flags */
 191         NULL, /* app_data */
 192         cca_rsa_sign, /* rsa_sign */
 193         cca_rsa_verify, /* rsa_verify */
 194         NULL /* rsa_keygen */
 195         };
 196 #endif
 197
 198 static RAND_METHOD ibm_4758_cca_rand =
 199         {
 200         /* "IBM 4758 RAND method", */
 201         NULL, /* seed */
 202         cca_get_random_bytes, /* get random bytes from the card */
 203         NULL, /* cleanup */
 204         NULL, /* add */
 205         cca_get_random_bytes, /* pseudo rand */
 206         cca_random_status, /* status */
 207         };
 208
 209 static const char *engine_4758_cca_id = "4758cca";
 210 static const char *engine_4758_cca_name = "IBM 4758 CCA hardware engine support";
 211 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 212 /* Compatibility hack, the dynamic library uses this form in the path */
 213 static const char *engine_4758_cca_id_alt = "4758_cca";
 214 #endif
 215
 216 /* engine implementation */
 217 /*-----------------------*/
 218 static int bind_helper(ENGINE *e)
 219         {
 220         if(!ENGINE_set_id(e, engine_4758_cca_id) ||
 221                         !ENGINE_set_name(e, engine_4758_cca_name) ||
 222 #ifndef OPENSSL_NO_RSA
 223                         !ENGINE_set_RSA(e, &ibm_4758_cca_rsa) ||
 224 #endif
 225                         !ENGINE_set_RAND(e, &ibm_4758_cca_rand) ||
 226                         !ENGINE_set_destroy_function(e, ibm_4758_cca_destroy) ||
 227                         !ENGINE_set_init_function(e, ibm_4758_cca_init) ||
 228                         !ENGINE_set_finish_function(e, ibm_4758_cca_finish) ||
 229                         !ENGINE_set_ctrl_function(e, ibm_4758_cca_ctrl) ||
 230 #ifndef OPENSSL_NO_RSA
 231                         !ENGINE_set_load_privkey_function(e, ibm_4758_load_privkey) ||
 232                         !ENGINE_set_load_pubkey_function(e, ibm_4758_load_pubkey) ||
 233 #endif
 234                         !ENGINE_set_cmd_defns(e, cca4758_cmd_defns))
 235                 return 0;
 236         /* Ensure the error handling is set up */
 237         ERR_load_CCA4758_strings();
 238         return 1;
 239         }
 240
 241 #ifdef OPENSSL_NO_DYNAMIC_ENGINE
 242 static ENGINE *engine_4758_cca(void)
 243         {
 244         ENGINE *ret = ENGINE_new();
 245         if(!ret)
 246                 return NULL;
 247         if(!bind_helper(ret))
 248                 {
 249                 ENGINE_free(ret);
 250                 return NULL;
 251                 }
 252         return ret;
 253         }
 254
 255 void ENGINE_load_4758cca(void)
 256         {
 257         ENGINE *e_4758 = engine_4758_cca();
 258         if (!e_4758) return;
 259         ENGINE_add(e_4758);
 260         ENGINE_free(e_4758);
 261         ERR_clear_error();
 262         }
 263 #endif
 264
 265 static int ibm_4758_cca_destroy(ENGINE *e)
 266         {
 267         ERR_unload_CCA4758_strings();
 268         free_CCA4758_LIB_NAME();
 269         return 1;
 270         }
 271
 272 static int ibm_4758_cca_init(ENGINE *e)
 273         {
 274         if(dso)
 275                 {
 276                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_ALREADY_LOADED);
 277                 goto err;
 278                 }
 279
 280         dso = DSO_load(NULL, get_CCA4758_LIB_NAME(), NULL, 0);
 281         if(!dso)
 282                 {
 283                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 284                 goto err;
 285                 }
 286
 287 #ifndef OPENSSL_NO_RSA
 288         if(!(keyRecordRead = (F_KEYRECORDREAD)
 289                                 DSO_bind_func(dso, n_keyRecordRead)) ||
 290                         !(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
 291                                 DSO_bind_func(dso, n_randomNumberGenerate)) ||
 292                         !(digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)
 293                                 DSO_bind_func(dso, n_digitalSignatureGenerate)) ||
 294                         !(digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)
 295                                 DSO_bind_func(dso, n_digitalSignatureVerify)) ||
 296                         !(publicKeyExtract = (F_PUBLICKEYEXTRACT)
 297                                 DSO_bind_func(dso, n_publicKeyExtract)) ||
 298                         !(pkaEncrypt = (F_PKAENCRYPT)
 299                                 DSO_bind_func(dso, n_pkaEncrypt)) ||
 300                         !(pkaDecrypt = (F_PKADECRYPT)
 301                                 DSO_bind_func(dso, n_pkaDecrypt)))
 302                 {
 303                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 304                 goto err;
 305                 }
 306 #else
 307         if(!(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
 308                                 DSO_bind_func(dso, n_randomNumberGenerate)))
 309                 {
 310                 CCA4758err(CCA4758_F_IBM_4758_CCA_INIT,CCA4758_R_DSO_FAILURE);
 311                 goto err;
 312                 }
 313 #endif
 314
 315 #ifndef OPENSSL_NO_RSA
 316         hndidx = RSA_get_ex_new_index(0, "IBM 4758 CCA RSA key handle",
 317                 NULL, NULL, cca_ex_free);
 318 #endif
 319
 320         return 1;
 321 err:
 322         if(dso)
 323                 DSO_free(dso);
 324         dso = NULL;
 325
 326 #ifndef OPENSSL_NO_RSA
 327         keyRecordRead = (F_KEYRECORDREAD)0;
 328         digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
 329         digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
 330         publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
 331         pkaEncrypt = (F_PKAENCRYPT)0;
 332         pkaDecrypt = (F_PKADECRYPT)0;
 333 #endif
 334         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 335         return 0;
 336         }
 337
 338 static int ibm_4758_cca_finish(ENGINE *e)
 339         {
 340         free_CCA4758_LIB_NAME();
 341         if(!dso)
 342                 {
 343                 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
 344                                 CCA4758_R_NOT_LOADED);
 345                 return 0;
 346                 }
 347         if(!DSO_free(dso))
 348                 {
 349                 CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH,
 350                                 CCA4758_R_UNIT_FAILURE);
 351                 return 0;
 352                 }
 353         dso = NULL;
 354 #ifndef OPENSSL_NO_RSA
 355         keyRecordRead = (F_KEYRECORDREAD)0;
 356         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 357         digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)0;
 358         digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
 359         publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
 360         pkaEncrypt = (F_PKAENCRYPT)0;
 361         pkaDecrypt = (F_PKADECRYPT)0;
 362 #endif
 363         randomNumberGenerate = (F_RANDOMNUMBERGENERATE)0;
 364         return 1;
 365         }
 366
 367 static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
 368         {
 369         int initialised = ((dso == NULL) ? 0 : 1);
 370         switch(cmd)
 371                 {
 372         case CCA4758_CMD_SO_PATH:
 373                 if(p == NULL)
 374                         {
 375                         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 376                                         ERR_R_PASSED_NULL_PARAMETER);
 377                         return 0;
 378                         }
 379                 if(initialised)
 380                         {
 381                         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 382                                         CCA4758_R_ALREADY_LOADED);
 383                         return 0;
 384                         }
 385                 return set_CCA4758_LIB_NAME((const char *)p);
 386         default:
 387                 break;
 388                 }
 389         CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
 390                         CCA4758_R_COMMAND_NOT_IMPLEMENTED);
 391         return 0;
 392         }
 393
 394 #ifndef OPENSSL_NO_RSA
 395
 396 #define MAX_CCA_PKA_TOKEN_SIZE 2500
 397
 398 static EVP_PKEY *ibm_4758_load_privkey(ENGINE* e, const char* key_id,
 399                         UI_METHOD *ui_method, void *callback_data)
 400         {
 401         RSA *rtmp = NULL;
 402         EVP_PKEY *res = NULL;
 403         unsigned char* keyToken = NULL;
 404         unsigned char pubKeyToken[MAX_CCA_PKA_TOKEN_SIZE];
 405         long pubKeyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 406         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 407         long returnCode;
 408         long reasonCode;
 409         long exitDataLength = 0;
 410         long ruleArrayLength = 0;
 411         unsigned char exitData[8];
 412         unsigned char ruleArray[8];
 413         unsigned char keyLabel[64];
 414         unsigned long keyLabelLength = strlen(key_id);
 415         unsigned char modulus[256];
 416         long modulusFieldLength = sizeof(modulus);
 417         long modulusLength = 0;
 418         unsigned char exponent[256];
 419         long exponentLength = sizeof(exponent);
 420
 421         if (keyLabelLength > sizeof(keyLabel))
 422                 {
 423                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 424                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 425                 return NULL;
 426                 }
 427
 428         memset(keyLabel,' ', sizeof(keyLabel));
 429         memcpy(keyLabel, key_id, keyLabelLength);
 430
 431         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 432         if (!keyToken)
 433                 {
 434                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 435                                 ERR_R_MALLOC_FAILURE);
 436                 goto err;
 437                 }
 438
 439         keyRecordRead(&returnCode, &reasonCode, &exitDataLength,
 440                 exitData, &ruleArrayLength, ruleArray, keyLabel,
 441                 &keyTokenLength, keyToken+sizeof(long));
 442
 443         if (returnCode)
 444                 {
 445                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 446                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 447                 goto err;
 448                 }
 449
 450         publicKeyExtract(&returnCode, &reasonCode, &exitDataLength,
 451                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 452                 keyToken+sizeof(long), &pubKeyTokenLength, pubKeyToken);
 453
 454         if (returnCode)
 455                 {
 456                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 457                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 458                 goto err;
 459                 }
 460
 461         if (!getModulusAndExponent(pubKeyToken, &exponentLength,
 462                         exponent, &modulusLength, &modulusFieldLength,
 463                         modulus))
 464                 {
 465                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
 466                         CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
 467                 goto err;
 468                 }
 469
 470         (*(long*)keyToken) = keyTokenLength;
 471         rtmp = RSA_new_method(e);
 472         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 473
 474         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 475         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 476         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 477
 478         res = EVP_PKEY_new();
 479         EVP_PKEY_assign_RSA(res, rtmp);
 480
 481         return res;
 482 err:
 483         if (keyToken)
 484                 OPENSSL_free(keyToken);
 485         return NULL;
 486         }
 487
 488 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE* e, const char* key_id,
 489                         UI_METHOD *ui_method, void *callback_data)
 490         {
 491         RSA *rtmp = NULL;
 492         EVP_PKEY *res = NULL;
 493         unsigned char* keyToken = NULL;
 494         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 495         long returnCode;
 496         long reasonCode;
 497         long exitDataLength = 0;
 498         long ruleArrayLength = 0;
 499         unsigned char exitData[8];
 500         unsigned char ruleArray[8];
 501         unsigned char keyLabel[64];
 502         unsigned long keyLabelLength = strlen(key_id);
 503         unsigned char modulus[512];
 504         long modulusFieldLength = sizeof(modulus);
 505         long modulusLength = 0;
 506         unsigned char exponent[512];
 507         long exponentLength = sizeof(exponent);
 508
 509         if (keyLabelLength > sizeof(keyLabel))
 510                 {
 511                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 512                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 513                 return NULL;
 514                 }
 515
 516         memset(keyLabel,' ', sizeof(keyLabel));
 517         memcpy(keyLabel, key_id, keyLabelLength);
 518
 519         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 520         if (!keyToken)
 521                 {
 522                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 523                                 ERR_R_MALLOC_FAILURE);
 524                 goto err;
 525                 }
 526
 527         keyRecordRead(&returnCode, &reasonCode, &exitDataLength, exitData,
 528                 &ruleArrayLength, ruleArray, keyLabel, &keyTokenLength,
 529                 keyToken+sizeof(long));
 530
 531         if (returnCode)
 532                 {
 533                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 534                                 ERR_R_MALLOC_FAILURE);
 535                 goto err;
 536                 }
 537
 538         if (!getModulusAndExponent(keyToken+sizeof(long), &exponentLength,
 539                         exponent, &modulusLength, &modulusFieldLength, modulus))
 540                 {
 541                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 542                         CCA4758_R_FAILED_LOADING_PUBLIC_KEY);
 543                 goto err;
 544                 }
 545
 546         (*(long*)keyToken) = keyTokenLength;
 547         rtmp = RSA_new_method(e);
 548         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 549         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 550         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 551         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 552         res = EVP_PKEY_new();
 553         EVP_PKEY_assign_RSA(res, rtmp);
 554
 555         return res;
 556 err:
 557         if (keyToken)
 558                 OPENSSL_free(keyToken);
 559         return NULL;
 560         }
 561
 562 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
 563                         unsigned char *to, RSA *rsa,int padding)
 564         {
 565         long returnCode;
 566         long reasonCode;
 567         long lflen = flen;
 568         long exitDataLength = 0;
 569         unsigned char exitData[8];
 570         long ruleArrayLength = 1;
 571         unsigned char ruleArray[8] = "PKCS-1.2";
 572         long dataStructureLength = 0;
 573         unsigned char dataStructure[8];
 574         long outputLength = RSA_size(rsa);
 575         long keyTokenLength;
 576         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 577
 578         keyTokenLength = *(long*)keyToken;
 579         keyToken+=sizeof(long);
 580
 581         pkaEncrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 582                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 583                 &dataStructureLength, dataStructure, &keyTokenLength,
 584                 keyToken, &outputLength, to);
 585
 586         if (returnCode || reasonCode)
 587                 return -(returnCode << 16 | reasonCode);
 588         return outputLength;
 589         }
 590
 591 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
 592                         unsigned char *to, RSA *rsa,int padding)
 593         {
 594         long returnCode;
 595         long reasonCode;
 596         long lflen = flen;
 597         long exitDataLength = 0;
 598         unsigned char exitData[8];
 599         long ruleArrayLength = 1;
 600         unsigned char ruleArray[8] = "PKCS-1.2";
 601         long dataStructureLength = 0;
 602         unsigned char dataStructure[8];
 603         long outputLength = RSA_size(rsa);
 604         long keyTokenLength;
 605         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 606
 607         keyTokenLength = *(long*)keyToken;
 608         keyToken+=sizeof(long);
 609
 610         pkaDecrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 611                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 612                 &dataStructureLength, dataStructure, &keyTokenLength,
 613                 keyToken, &outputLength, to);
 614
 615         return (returnCode | reasonCode) ? 0 : 1;
 616         }
 617
 618 #define SSL_SIG_LEN 36
 619
 620 static int cca_rsa_verify(int type, const unsigned char *m, unsigned int m_len,
 621         const unsigned char *sigbuf, unsigned int siglen, const RSA *rsa)
 622         {
 623         long returnCode;
 624         long reasonCode;
 625         long lsiglen = siglen;
 626         long exitDataLength = 0;
 627         unsigned char exitData[8];
 628         long ruleArrayLength = 1;
 629         unsigned char ruleArray[8] = "PKCS-1.1";
 630         long keyTokenLength;
 631         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 632         long length = SSL_SIG_LEN;
 633         long keyLength ;
 634         unsigned char *hashBuffer = NULL;
 635         X509_SIG sig;
 636         ASN1_TYPE parameter;
 637         X509_ALGOR algorithm;
 638         ASN1_OCTET_STRING digest;
 639
 640         keyTokenLength = *(long*)keyToken;
 641         keyToken+=sizeof(long);
 642
 643         if (type == NID_md5 || type == NID_sha1)
 644                 {
 645                 sig.algor = &algorithm;
 646                 algorithm.algorithm = OBJ_nid2obj(type);
 647
 648                 if (!algorithm.algorithm)
 649                         {
 650                         CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 651                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 652                         return 0;
 653                         }
 654
 655                 if (!algorithm.algorithm->length)
 656                         {
 657                         CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 658                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 659                         return 0;
 660                         }
 661
 662                 parameter.type = V_ASN1_NULL;
 663                 parameter.value.ptr = NULL;
 664                 algorithm.parameter = &parameter;
 665
 666                 sig.digest = &digest;
 667                 sig.digest->data = (unsigned char*)m;
 668                 sig.digest->length = m_len;
 669
 670                 length = i2d_X509_SIG(&sig, NULL);
 671                 }
 672
 673         keyLength = RSA_size(rsa);
 674
 675         if (length - RSA_PKCS1_PADDING > keyLength)
 676                 {
 677                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 678                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 679                 return 0;
 680                 }
 681
 682         switch (type)
 683                 {
 684                 case NID_md5_sha1 :
 685                         if (m_len != SSL_SIG_LEN)
 686                                 {
 687                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 688                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 689                                 return 0;
 690                                 }
 691
 692                         hashBuffer = (unsigned char *)m;
 693                         length = m_len;
 694                         break;
 695                 case NID_md5 :
 696                         {
 697                         unsigned char *ptr;
 698                         ptr = hashBuffer = OPENSSL_malloc(
 699                                         (unsigned int)keyLength+1);
 700                         if (!hashBuffer)
 701                                 {
 702                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 703                                                 ERR_R_MALLOC_FAILURE);
 704                                 return 0;
 705                                 }
 706
 707                         i2d_X509_SIG(&sig, &ptr);
 708                         }
 709                         break;
 710                 case NID_sha1 :
 711                         {
 712                         unsigned char *ptr;
 713                         ptr = hashBuffer = OPENSSL_malloc(
 714                                         (unsigned int)keyLength+1);
 715                         if (!hashBuffer)
 716                                 {
 717                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 718                                                 ERR_R_MALLOC_FAILURE);
 719                                 return 0;
 720                                 }
 721                         i2d_X509_SIG(&sig, &ptr);
 722                         }
 723                         break;
 724                 default:
 725                         return 0;
 726                 }
 727
 728         digitalSignatureVerify(&returnCode, &reasonCode, &exitDataLength,
 729                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 730                 keyToken, &length, hashBuffer, &lsiglen,
 731                                                 (unsigned char *)sigbuf);
 732
 733         if (type == NID_sha1 || type == NID_md5)
 734                 {
 735                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 736                 OPENSSL_free(hashBuffer);
 737                 }
 738
 739         return ((returnCode || reasonCode) ? 0 : 1);
 740         }
 741
 742 #define SSL_SIG_LEN 36
 743
 744 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
 745                 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 746         {
 747         long returnCode;
 748         long reasonCode;
 749         long exitDataLength = 0;
 750         unsigned char exitData[8];
 751         long ruleArrayLength = 1;
 752         unsigned char ruleArray[8] = "PKCS-1.1";
 753         long outputLength=256;
 754         long outputBitLength;
 755         long keyTokenLength;
 756         unsigned char *hashBuffer = NULL;
 757         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 758         long length = SSL_SIG_LEN;
 759         long keyLength ;
 760         X509_SIG sig;
 761         ASN1_TYPE parameter;
 762         X509_ALGOR algorithm;
 763         ASN1_OCTET_STRING digest;
 764
 765         keyTokenLength = *(long*)keyToken;
 766         keyToken+=sizeof(long);
 767
 768         if (type == NID_md5 || type == NID_sha1)
 769                 {
 770                 sig.algor = &algorithm;
 771                 algorithm.algorithm = OBJ_nid2obj(type);
 772
 773                 if (!algorithm.algorithm)
 774                         {
 775                         CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 776                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 777                         return 0;
 778                         }
 779
 780                 if (!algorithm.algorithm->length)
 781                         {
 782                         CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 783                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 784                         return 0;
 785                         }
 786
 787                 parameter.type = V_ASN1_NULL;
 788                 parameter.value.ptr = NULL;
 789                 algorithm.parameter = &parameter;
 790
 791                 sig.digest = &digest;
 792                 sig.digest->data = (unsigned char*)m;
 793                 sig.digest->length = m_len;
 794
 795                 length = i2d_X509_SIG(&sig, NULL);
 796                 }
 797
 798         keyLength = RSA_size(rsa);
 799
 800         if (length - RSA_PKCS1_PADDING > keyLength)
 801                 {
 802                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 803                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 804                 return 0;
 805                 }
 806
 807         switch (type)
 808                 {
 809                 case NID_md5_sha1 :
 810                         if (m_len != SSL_SIG_LEN)
 811                                 {
 812                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 813                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 814                                 return 0;
 815                                 }
 816                         hashBuffer = (unsigned char*)m;
 817                         length = m_len;
 818                         break;
 819                 case NID_md5 :
 820                         {
 821                         unsigned char *ptr;
 822                         ptr = hashBuffer = OPENSSL_malloc(
 823                                         (unsigned int)keyLength+1);
 824                         if (!hashBuffer)
 825                                 {
 826                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 827                                                 ERR_R_MALLOC_FAILURE);
 828                                 return 0;
 829                                 }
 830                         i2d_X509_SIG(&sig, &ptr);
 831                         }
 832                         break;
 833                 case NID_sha1 :
 834                         {
 835                         unsigned char *ptr;
 836                         ptr = hashBuffer = OPENSSL_malloc(
 837                                         (unsigned int)keyLength+1);
 838                         if (!hashBuffer)
 839                                 {
 840                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 841                                                 ERR_R_MALLOC_FAILURE);
 842                                 return 0;
 843                                 }
 844                         i2d_X509_SIG(&sig, &ptr);
 845                         }
 846                         break;
 847                 default:
 848                         return 0;
 849                 }
 850
 851         digitalSignatureGenerate(&returnCode, &reasonCode, &exitDataLength,
 852                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 853                 keyToken, &length, hashBuffer, &outputLength, &outputBitLength,
 854                 sigret);
 855
 856         if (type == NID_sha1 || type == NID_md5)
 857                 {
 858                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 859                 OPENSSL_free(hashBuffer);
 860                 }
 861
 862         *siglen = outputLength;
 863
 864         return ((returnCode || reasonCode) ? 0 : 1);
 865         }
 866
 867 static int getModulusAndExponent(const unsigned char*token, long *exponentLength,
 868                 unsigned char *exponent, long *modulusLength, long *modulusFieldLength,
 869                 unsigned char *modulus)
 870         {
 871         unsigned long len;
 872
 873         if (*token++ != (char)0x1E) /* internal PKA token? */
 874                 return 0;
 875
 876         if (*token++) /* token version must be zero */
 877                 return 0;
 878
 879         len = *token++;
 880         len = len << 8;
 881         len |= (unsigned char)*token++;
 882
 883         token += 4; /* skip reserved bytes */
 884
 885         if (*token++ == (char)0x04)
 886                 {
 887                 if (*token++) /* token version must be zero */
 888                         return 0;
 889
 890                 len = *token++;
 891                 len = len << 8;
 892                 len |= (unsigned char)*token++;
 893
 894                 token+=2; /* skip reserved section */
 895
 896                 len = *token++;
 897                 len = len << 8;
 898                 len |= (unsigned char)*token++;
 899
 900                 *exponentLength = len;
 901
 902                 len = *token++;
 903                 len = len << 8;
 904                 len |= (unsigned char)*token++;
 905
 906                 *modulusLength = len;
 907
 908                 len = *token++;
 909                 len = len << 8;
 910                 len |= (unsigned char)*token++;
 911
 912                 *modulusFieldLength = len;
 913
 914                 memcpy(exponent, token, *exponentLength);
 915                 token+= *exponentLength;
 916
 917                 memcpy(modulus, token, *modulusFieldLength);
 918                 return 1;
 919                 }
 920         return 0;
 921         }
 922
 923 #endif /* OPENSSL_NO_RSA */
 924
 925 static int cca_random_status(void)
 926         {
 927         return 1;
 928         }
 929
 930 static int cca_get_random_bytes(unsigned char* buf, int num)
 931         {
 932         long ret_code;
 933         long reason_code;
 934         long exit_data_length;
 935         unsigned char exit_data[4];
 936         unsigned char form[] = "RANDOM  ";
 937         unsigned char rand_buf[8];
 938
 939         while(num >= (int)sizeof(rand_buf))
 940                 {
 941                 randomNumberGenerate(&ret_code, &reason_code, &exit_data_length,
 942                         exit_data, form, rand_buf);
 943                 if (ret_code)
 944                         return 0;
 945                 num -= sizeof(rand_buf);
 946                 memcpy(buf, rand_buf, sizeof(rand_buf));
 947                 buf += sizeof(rand_buf);
 948                 }
 949
 950         if (num)
 951                 {
 952                 randomNumberGenerate(&ret_code, &reason_code, NULL, NULL,
 953                         form, rand_buf);
 954                 if (ret_code)
 955                         return 0;
 956                 memcpy(buf, rand_buf, num);
 957                 }
 958
 959         return 1;
 960         }
 961
 962 #ifndef OPENSSL_NO_RSA
 963 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, int idx,
 964                 long argl, void *argp)
 965         {
 966         if (item)
 967                 OPENSSL_free(item);
 968         }
 969 #endif
 970
 971 /* Goo to handle building as a dynamic engine */
 972 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 973 static int bind_fn(ENGINE *e, const char *id)
 974         {
 975         if(id && (strcmp(id, engine_4758_cca_id) != 0) &&
 976                         (strcmp(id, engine_4758_cca_id_alt) != 0))
 977                 return 0;
 978         if(!bind_helper(e))
 979                 return 0;
 980         return 1;
 981         }
 982 IMPLEMENT_DYNAMIC_CHECK_FN()
 983 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
 984 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
 985
 986 #endif /* !OPENSSL_NO_HW_4758_CCA */
 987 #endif /* !OPENSSL_NO_HW */