0f1dae7567a5393b0563029a44e1891368fcdfce
[openssl.git] / 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 */