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                 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         if (res)
 486                 EVP_PKEY_free(res);
 487         if (rtmp)
 488                 RSA_free(rtmp);
 489         return NULL;
 490         }
 491
 492 static EVP_PKEY *ibm_4758_load_pubkey(ENGINE* e, const char* key_id,
 493                         UI_METHOD *ui_method, void *callback_data)
 494         {
 495         RSA *rtmp = NULL;
 496         EVP_PKEY *res = NULL;
 497         unsigned char* keyToken = NULL;
 498         long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
 499         long returnCode;
 500         long reasonCode;
 501         long exitDataLength = 0;
 502         long ruleArrayLength = 0;
 503         unsigned char exitData[8];
 504         unsigned char ruleArray[8];
 505         unsigned char keyLabel[64];
 506         unsigned long keyLabelLength = strlen(key_id);
 507         unsigned char modulus[512];
 508         long modulusFieldLength = sizeof(modulus);
 509         long modulusLength = 0;
 510         unsigned char exponent[512];
 511         long exponentLength = sizeof(exponent);
 512
 513         if (keyLabelLength > sizeof(keyLabel))
 514                 {
 515                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 516                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 517                 return NULL;
 518                 }
 519
 520         memset(keyLabel,' ', sizeof(keyLabel));
 521         memcpy(keyLabel, key_id, keyLabelLength);
 522
 523         keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
 524         if (!keyToken)
 525                 {
 526                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 527                                 ERR_R_MALLOC_FAILURE);
 528                 goto err;
 529                 }
 530
 531         keyRecordRead(&returnCode, &reasonCode, &exitDataLength, exitData,
 532                 &ruleArrayLength, ruleArray, keyLabel, &keyTokenLength,
 533                 keyToken+sizeof(long));
 534
 535         if (returnCode)
 536                 {
 537                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 538                                 ERR_R_MALLOC_FAILURE);
 539                 goto err;
 540                 }
 541
 542         if (!getModulusAndExponent(keyToken+sizeof(long), &exponentLength,
 543                         exponent, &modulusLength, &modulusFieldLength, modulus))
 544                 {
 545                 CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
 546                         CCA4758_R_FAILED_LOADING_PUBLIC_KEY);
 547                 goto err;
 548                 }
 549
 550         (*(long*)keyToken) = keyTokenLength;
 551         rtmp = RSA_new_method(e);
 552         RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
 553         rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
 554         rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
 555         rtmp->flags |= RSA_FLAG_EXT_PKEY;
 556         res = EVP_PKEY_new();
 557         EVP_PKEY_assign_RSA(res, rtmp);
 558
 559         return res;
 560 err:
 561         if (keyToken)
 562                 OPENSSL_free(keyToken);
 563         if (res)
 564                 EVP_PKEY_free(res);
 565         if (rtmp)
 566                 RSA_free(rtmp);
 567         return NULL;
 568         }
 569
 570 static int cca_rsa_pub_enc(int flen, const unsigned char *from,
 571                         unsigned char *to, RSA *rsa,int padding)
 572         {
 573         long returnCode;
 574         long reasonCode;
 575         long lflen = flen;
 576         long exitDataLength = 0;
 577         unsigned char exitData[8];
 578         long ruleArrayLength = 1;
 579         unsigned char ruleArray[8] = "PKCS-1.2";
 580         long dataStructureLength = 0;
 581         unsigned char dataStructure[8];
 582         long outputLength = RSA_size(rsa);
 583         long keyTokenLength;
 584         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 585
 586         keyTokenLength = *(long*)keyToken;
 587         keyToken+=sizeof(long);
 588
 589         pkaEncrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 590                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 591                 &dataStructureLength, dataStructure, &keyTokenLength,
 592                 keyToken, &outputLength, to);
 593
 594         if (returnCode || reasonCode)
 595                 return -(returnCode << 16 | reasonCode);
 596         return outputLength;
 597         }
 598
 599 static int cca_rsa_priv_dec(int flen, const unsigned char *from,
 600                         unsigned char *to, RSA *rsa,int padding)
 601         {
 602         long returnCode;
 603         long reasonCode;
 604         long lflen = flen;
 605         long exitDataLength = 0;
 606         unsigned char exitData[8];
 607         long ruleArrayLength = 1;
 608         unsigned char ruleArray[8] = "PKCS-1.2";
 609         long dataStructureLength = 0;
 610         unsigned char dataStructure[8];
 611         long outputLength = RSA_size(rsa);
 612         long keyTokenLength;
 613         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 614
 615         keyTokenLength = *(long*)keyToken;
 616         keyToken+=sizeof(long);
 617
 618         pkaDecrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
 619                 &ruleArrayLength, ruleArray, &lflen, (unsigned char*)from,
 620                 &dataStructureLength, dataStructure, &keyTokenLength,
 621                 keyToken, &outputLength, to);
 622
 623         return (returnCode | reasonCode) ? 0 : 1;
 624         }
 625
 626 #define SSL_SIG_LEN 36
 627
 628 static int cca_rsa_verify(int type, const unsigned char *m, unsigned int m_len,
 629                 unsigned char *sigbuf, unsigned int siglen, const RSA *rsa)
 630         {
 631         long returnCode;
 632         long reasonCode;
 633         long lsiglen = siglen;
 634         long exitDataLength = 0;
 635         unsigned char exitData[8];
 636         long ruleArrayLength = 1;
 637         unsigned char ruleArray[8] = "PKCS-1.1";
 638         long keyTokenLength;
 639         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 640         long length = SSL_SIG_LEN;
 641         long keyLength ;
 642         unsigned char *hashBuffer = NULL;
 643         X509_SIG sig;
 644         ASN1_TYPE parameter;
 645         X509_ALGOR algorithm;
 646         ASN1_OCTET_STRING digest;
 647
 648         keyTokenLength = *(long*)keyToken;
 649         keyToken+=sizeof(long);
 650
 651         if (type == NID_md5 || type == NID_sha1)
 652                 {
 653                 sig.algor = &algorithm;
 654                 algorithm.algorithm = OBJ_nid2obj(type);
 655
 656                 if (!algorithm.algorithm)
 657                         {
 658                         CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 659                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 660                         return 0;
 661                         }
 662
 663                 if (!algorithm.algorithm->length)
 664                         {
 665                         CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 666                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 667                         return 0;
 668                         }
 669
 670                 parameter.type = V_ASN1_NULL;
 671                 parameter.value.ptr = NULL;
 672                 algorithm.parameter = &parameter;
 673
 674                 sig.digest = &digest;
 675                 sig.digest->data = (unsigned char*)m;
 676                 sig.digest->length = m_len;
 677
 678                 length = i2d_X509_SIG(&sig, NULL);
 679                 }
 680
 681         keyLength = RSA_size(rsa);
 682
 683         if (length - RSA_PKCS1_PADDING > keyLength)
 684                 {
 685                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 686                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 687                 return 0;
 688                 }
 689
 690         switch (type)
 691                 {
 692                 case NID_md5_sha1 :
 693                         if (m_len != SSL_SIG_LEN)
 694                                 {
 695                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 696                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 697                                 return 0;
 698                                 }
 699
 700                         hashBuffer = (unsigned char *)m;
 701                         length = m_len;
 702                         break;
 703                 case NID_md5 :
 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
 715                         i2d_X509_SIG(&sig, &ptr);
 716                         }
 717                         break;
 718                 case NID_sha1 :
 719                         {
 720                         unsigned char *ptr;
 721                         ptr = hashBuffer = OPENSSL_malloc(
 722                                         (unsigned int)keyLength+1);
 723                         if (!hashBuffer)
 724                                 {
 725                                 CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
 726                                                 ERR_R_MALLOC_FAILURE);
 727                                 return 0;
 728                                 }
 729                         i2d_X509_SIG(&sig, &ptr);
 730                         }
 731                         break;
 732                 default:
 733                         return 0;
 734                 }
 735
 736         digitalSignatureVerify(&returnCode, &reasonCode, &exitDataLength,
 737                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 738                 keyToken, &length, hashBuffer, &lsiglen, sigbuf);
 739
 740         if (type == NID_sha1 || type == NID_md5)
 741                 {
 742                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 743                 OPENSSL_free(hashBuffer);
 744                 }
 745
 746         return ((returnCode || reasonCode) ? 0 : 1);
 747         }
 748
 749 #define SSL_SIG_LEN 36
 750
 751 static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
 752                 unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
 753         {
 754         long returnCode;
 755         long reasonCode;
 756         long exitDataLength = 0;
 757         unsigned char exitData[8];
 758         long ruleArrayLength = 1;
 759         unsigned char ruleArray[8] = "PKCS-1.1";
 760         long outputLength=256;
 761         long outputBitLength;
 762         long keyTokenLength;
 763         unsigned char *hashBuffer = NULL;
 764         unsigned char* keyToken = (unsigned char*)RSA_get_ex_data(rsa, hndidx);
 765         long length = SSL_SIG_LEN;
 766         long keyLength ;
 767         X509_SIG sig;
 768         ASN1_TYPE parameter;
 769         X509_ALGOR algorithm;
 770         ASN1_OCTET_STRING digest;
 771
 772         keyTokenLength = *(long*)keyToken;
 773         keyToken+=sizeof(long);
 774
 775         if (type == NID_md5 || type == NID_sha1)
 776                 {
 777                 sig.algor = &algorithm;
 778                 algorithm.algorithm = OBJ_nid2obj(type);
 779
 780                 if (!algorithm.algorithm)
 781                         {
 782                         CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 783                                 CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
 784                         return 0;
 785                         }
 786
 787                 if (!algorithm.algorithm->length)
 788                         {
 789                         CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 790                                 CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
 791                         return 0;
 792                         }
 793
 794                 parameter.type = V_ASN1_NULL;
 795                 parameter.value.ptr = NULL;
 796                 algorithm.parameter = &parameter;
 797
 798                 sig.digest = &digest;
 799                 sig.digest->data = (unsigned char*)m;
 800                 sig.digest->length = m_len;
 801
 802                 length = i2d_X509_SIG(&sig, NULL);
 803                 }
 804
 805         keyLength = RSA_size(rsa);
 806
 807         if (length - RSA_PKCS1_PADDING > keyLength)
 808                 {
 809                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 810                         CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 811                 return 0;
 812                 }
 813
 814         switch (type)
 815                 {
 816                 case NID_md5_sha1 :
 817                         if (m_len != SSL_SIG_LEN)
 818                                 {
 819                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 820                                 CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
 821                                 return 0;
 822                                 }
 823                         hashBuffer = (unsigned char*)m;
 824                         length = m_len;
 825                         break;
 826                 case NID_md5 :
 827                         {
 828                         unsigned char *ptr;
 829                         ptr = hashBuffer = OPENSSL_malloc(
 830                                         (unsigned int)keyLength+1);
 831                         if (!hashBuffer)
 832                                 {
 833                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 834                                                 ERR_R_MALLOC_FAILURE);
 835                                 return 0;
 836                                 }
 837                         i2d_X509_SIG(&sig, &ptr);
 838                         }
 839                         break;
 840                 case NID_sha1 :
 841                         {
 842                         unsigned char *ptr;
 843                         ptr = hashBuffer = OPENSSL_malloc(
 844                                         (unsigned int)keyLength+1);
 845                         if (!hashBuffer)
 846                                 {
 847                                 CCA4758err(CCA4758_F_CCA_RSA_SIGN,
 848                                                 ERR_R_MALLOC_FAILURE);
 849                                 return 0;
 850                                 }
 851                         i2d_X509_SIG(&sig, &ptr);
 852                         }
 853                         break;
 854                 default:
 855                         return 0;
 856                 }
 857
 858         digitalSignatureGenerate(&returnCode, &reasonCode, &exitDataLength,
 859                 exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
 860                 keyToken, &length, hashBuffer, &outputLength, &outputBitLength,
 861                 sigret);
 862
 863         if (type == NID_sha1 || type == NID_md5)
 864                 {
 865                 OPENSSL_cleanse(hashBuffer, keyLength+1);
 866                 OPENSSL_free(hashBuffer);
 867                 }
 868
 869         *siglen = outputLength;
 870
 871         return ((returnCode || reasonCode) ? 0 : 1);
 872         }
 873
 874 static int getModulusAndExponent(const unsigned char*token, long *exponentLength,
 875                 unsigned char *exponent, long *modulusLength, long *modulusFieldLength,
 876                 unsigned char *modulus)
 877         {
 878         unsigned long len;
 879
 880         if (*token++ != (char)0x1E) /* internal PKA token? */
 881                 return 0;
 882
 883         if (*token++) /* token version must be zero */
 884                 return 0;
 885
 886         len = *token++;
 887         len = len << 8;
 888         len |= (unsigned char)*token++;
 889
 890         token += 4; /* skip reserved bytes */
 891
 892         if (*token++ == (char)0x04)
 893                 {
 894                 if (*token++) /* token version must be zero */
 895                         return 0;
 896
 897                 len = *token++;
 898                 len = len << 8;
 899                 len |= (unsigned char)*token++;
 900
 901                 token+=2; /* skip reserved section */
 902
 903                 len = *token++;
 904                 len = len << 8;
 905                 len |= (unsigned char)*token++;
 906
 907                 *exponentLength = len;
 908
 909                 len = *token++;
 910                 len = len << 8;
 911                 len |= (unsigned char)*token++;
 912
 913                 *modulusLength = len;
 914
 915                 len = *token++;
 916                 len = len << 8;
 917                 len |= (unsigned char)*token++;
 918
 919                 *modulusFieldLength = len;
 920
 921                 memcpy(exponent, token, *exponentLength);
 922                 token+= *exponentLength;
 923
 924                 memcpy(modulus, token, *modulusFieldLength);
 925                 return 1;
 926                 }
 927         return 0;
 928         }
 929
 930 #endif /* OPENSSL_NO_RSA */
 931
 932 static int cca_random_status(void)
 933         {
 934         return 1;
 935         }
 936
 937 static int cca_get_random_bytes(unsigned char* buf, int num)
 938         {
 939         long ret_code;
 940         long reason_code;
 941         long exit_data_length;
 942         unsigned char exit_data[4];
 943         unsigned char form[] = "RANDOM  ";
 944         unsigned char rand_buf[8];
 945
 946         while(num >= (int)sizeof(rand_buf))
 947                 {
 948                 randomNumberGenerate(&ret_code, &reason_code, &exit_data_length,
 949                         exit_data, form, rand_buf);
 950                 if (ret_code)
 951                         return 0;
 952                 num -= sizeof(rand_buf);
 953                 memcpy(buf, rand_buf, sizeof(rand_buf));
 954                 buf += sizeof(rand_buf);
 955                 }
 956
 957         if (num)
 958                 {
 959                 randomNumberGenerate(&ret_code, &reason_code, NULL, NULL,
 960                         form, rand_buf);
 961                 if (ret_code)
 962                         return 0;
 963                 memcpy(buf, rand_buf, num);
 964                 }
 965
 966         return 1;
 967         }
 968
 969 #ifndef OPENSSL_NO_RSA
 970 static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, int idx,
 971                 long argl, void *argp)
 972         {
 973         if (item)
 974                 OPENSSL_free(item);
 975         }
 976 #endif
 977
 978 /* Goo to handle building as a dynamic engine */
 979 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 980 static int bind_fn(ENGINE *e, const char *id)
 981         {
 982         if(id && (strcmp(id, engine_4758_cca_id) != 0) &&
 983                         (strcmp(id, engine_4758_cca_id_alt) != 0))
 984                 return 0;
 985         if(!bind_helper(e))
 986                 return 0;
 987         return 1;
 988         }
 989 IMPLEMENT_DYNAMIC_CHECK_FN()
 990 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
 991 #endif /* OPENSSL_NO_DYNAMIC_ENGINE */
 992
 993 #endif /* !OPENSSL_NO_HW_4758_CCA */
 994 #endif /* !OPENSSL_NO_HW */