1/*
2 *		Common Public License Version 0.5
3 *
4 *		THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF
5 *		THIS COMMON PUBLIC LICENSE ("AGREEMENT"). ANY USE,
6 *		REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
7 *		RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
8 *
9 *		1. DEFINITIONS
10 *
11 *		"Contribution" means:
12 *		      a) in the case of the initial Contributor, the
13 *		      initial code and documentation distributed under
14 *		      this Agreement, and
15 *
16 *		      b) in the case of each subsequent Contributor:
17 *		      i) changes to the Program, and
18 *		      ii) additions to the Program;
19 *
20 *		      where such changes and/or additions to the Program
21 *		      originate from and are distributed by that
22 *		      particular Contributor. A Contribution 'originates'
23 *		      from a Contributor if it was added to the Program
24 *		      by such Contributor itself or anyone acting on such
25 *		      Contributor's behalf. Contributions do not include
26 *		      additions to the Program which: (i) are separate
27 *		      modules of software distributed in conjunction with
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29 *		      (ii) are not derivative works of the Program.
30 *
31 *
32 *		"Contributor" means any person or entity that distributes
33 *		the Program.
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35 *		"Licensed Patents " mean patent claims licensable by a
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44 *		this Agreement, including all Contributors.
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48 *		      a) Subject to the terms of this Agreement, each
49 *		      Contributor hereby grants Recipient a
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150 *		Contributor who includes the Program in a commercial
151 *		product offering should do so in a manner which does not
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173 *
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186 *
187 *
188 *		5. NO WARRANTY
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190 *		EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE
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203 *
204 *		6. DISCLAIMER OF LIABILITY
205 *		EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER
206 *		RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY
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211 *		(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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214 *		POSSIBILITY OF SUCH DAMAGES.
215 *
216 *		7. GENERAL
217 *
218 *		If any provision of this Agreement is invalid or
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222 *		parties hereto, such provision shall be reformed to the
223 *		minimum extent necessary to make such provision valid and
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225 *
226 *
227 *		If Recipient institutes patent litigation against a
228 *		Contributor with respect to a patent applicable to
229 *		software (including a cros - claim or counterclaim in a
230 *		lawsuit), then any patent licenses granted by that
231 *		Contributor to such Recipient under this Agreement shall
232 *		terminate as of the date such litigation is filed. In
233 *		addition, If Recipient institutes patent litigation
234 *		against any entity (including a cros - claim or
235 *		counterclaim in a lawsuit) alleging that the Program
236 *		itself (excluding combinations of the Program with other
237 *		software or hardware) infringes such Recipient's
238 *		patent(s), then such Recipient's rights granted under
239 *		Section 2(b) shall terminate as of the date such
240 *		litigation is filed.
241 *
242 *		All Recipient's rights under this Agreement shall
243 *		terminate if it fails to comply with any of the material
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248 *		use and distribution of the Program as soon as reasonably
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250 *		Agreement and any licenses granted by Recipient relating
251 *		to the Program shall continue and survive.
252 *
253 *		Everyone is permitted to copy and distribute copies of
254 *		this Agreement, but in order to avoid inconsistency the
255 *		Agreement is copyrighted and may only be modified in the
256 *		following manner. The Agreement Steward reserves the right
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258 *		Agreement from time to time. No one other than the
259 *		Agreement Steward has the right to modify this Agreement.
260 *
261 *		IBM is the initial Agreement Steward. IBM may assign the
262 *		responsibility to serve as the Agreement Steward to a
263 *		suitable separate entity. Each new version of the
264 *		Agreement will be given a distinguishing version number.
265 *		The Program (including Contributions) may always be
266 *		distributed subject to the version of the Agreement under
267 *		which it was received. In addition, after a new version of
268 *		the Agreement is published, Contributor may elect to
269 *		distribute the Program (including its Contributions) under
270 *		the new version. Except as expressly stated in Sections
271 *		2(a) and 2(b) above, Recipient receives no rights or
272 *		licenses to the intellectual property of any Contributor
273 *		under this Agreement, whether expressly, by implication,
274 *		estoppel or otherwise. All rights in the Program not
275 *		expressly granted under this Agreement are reserved.
276 *
277 *
278 *		This Agreement is governed by the laws of the State of New
279 *		York and the intellectual property laws of the United
280 *		States of America. No party to this Agreement will bring a
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283 *		a jury trial in any resulting litigation.
284 *
285 *
286 *
287 * (C) COPYRIGHT International Business Machines Corp. 2001, 2002
288 */
289/*
290 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
291 * Use is subject to license terms.
292 */
293
294/*
295 * Digest manager routines
296 */
297#include "tpmtok_int.h"
298
299CK_RV
300digest_mgr_init(SESSION	*sess,
301	DIGEST_CONTEXT	*ctx,
302	CK_MECHANISM	*mech)
303{
304	if (! sess || ! ctx) {
305		return (CKR_FUNCTION_FAILED);
306	}
307	if (ctx->active != FALSE) {
308		return (CKR_OPERATION_ACTIVE);
309	}
310
311	switch (mech->mechanism) {
312		case CKM_SHA_1:
313		{
314			ctx->context_len = sizeof (SHA1_CTX);
315			ctx->context.sha1ctx = (SHA1_CTX *)
316			    malloc(ctx->context_len);
317			if (!ctx->context.sha1ctx)
318				return (CKR_HOST_MEMORY);
319			SHA1Init(ctx->context.sha1ctx);
320		}
321		break;
322
323		case CKM_MD5:
324		{
325			ctx->context_len = sizeof (MD5_CTX);
326			ctx->context.md5ctx = (MD5_CTX *)
327			    malloc(ctx->context_len);
328			if (! ctx->context.md5ctx) {
329				return (CKR_HOST_MEMORY);
330			}
331			MD5Init(ctx->context.md5ctx);
332		}
333		break;
334
335		default:
336			return (CKR_MECHANISM_INVALID);
337	}
338
339	ctx->mech.ulParameterLen = mech->ulParameterLen;
340	ctx->mech.mechanism = mech->mechanism;
341	ctx->mech.pParameter = mech->pParameter;
342	ctx->multi = FALSE;
343	ctx->active = TRUE;
344
345	return (CKR_OK);
346}
347
348CK_RV
349digest_mgr_cleanup(DIGEST_CONTEXT *ctx)
350{
351	if (!ctx) {
352		return (CKR_FUNCTION_FAILED);
353	}
354	if (ctx->mech.mechanism == CKM_MD5) {
355		free(ctx->context.md5ctx);
356		ctx->context.md5ctx = NULL;
357	} else if (ctx->mech.mechanism == CKM_SHA_1) {
358		free(ctx->context.sha1ctx);
359		ctx->context.sha1ctx = NULL;
360	}
361	ctx->mech.ulParameterLen = 0;
362	ctx->mech.pParameter = NULL;
363	ctx->mech.mechanism = 0;
364	ctx->multi = FALSE;
365	ctx->active = FALSE;
366	ctx->context_len = 0;
367
368	return (CKR_OK);
369}
370
371CK_RV
372digest_mgr_digest(SESSION *sess,
373	CK_BBOOL length_only,
374	DIGEST_CONTEXT  *ctx,
375	CK_BYTE *in_data,
376	CK_ULONG in_data_len,
377	CK_BYTE *out_data,
378	CK_ULONG *out_data_len)
379{
380
381	if (! sess || ! ctx) {
382		return (CKR_FUNCTION_FAILED);
383	}
384	if (ctx->active == FALSE) {
385		return (CKR_OPERATION_NOT_INITIALIZED);
386	}
387
388	if ((length_only == FALSE) && (! in_data || ! out_data)) {
389		return (CKR_FUNCTION_FAILED);
390	}
391
392	if (ctx->multi == TRUE) {
393		return (CKR_OPERATION_ACTIVE);
394	}
395	switch (ctx->mech.mechanism) {
396		case CKM_SHA_1:
397		if (!length_only && *out_data_len < SHA1_DIGEST_LENGTH)
398			return (CKR_BUFFER_TOO_SMALL);
399		return (sha1_hash(sess, length_only, ctx,
400		    in_data, in_data_len, out_data,  out_data_len));
401
402		case CKM_MD5:
403		if (!length_only && *out_data_len < MD5_DIGEST_LENGTH)
404			return (CKR_BUFFER_TOO_SMALL);
405		return (md5_hash(sess, length_only, ctx,
406		    in_data,  in_data_len, out_data, out_data_len));
407
408		default:
409		return (CKR_FUNCTION_FAILED);
410	}
411}
412
413CK_RV
414digest_mgr_digest_update(SESSION *sess,
415	DIGEST_CONTEXT  *ctx,
416	CK_BYTE *data,
417	CK_ULONG data_len)
418{
419	if (! sess || ! ctx) {
420		return (CKR_FUNCTION_FAILED);
421	}
422	if (ctx->active == FALSE) {
423		return (CKR_OPERATION_NOT_INITIALIZED);
424	}
425
426	ctx->multi = TRUE;
427
428	switch (ctx->mech.mechanism) {
429		case CKM_SHA_1:
430			SHA1Update(ctx->context.sha1ctx, data, data_len);
431			return (CKR_OK);
432
433		case CKM_MD5:
434			MD5Update(ctx->context.md5ctx, data, data_len);
435			return (CKR_OK);
436		default:
437			return (CKR_MECHANISM_INVALID);
438	}
439}
440
441CK_RV
442digest_mgr_digest_key(SESSION * sess,
443	DIGEST_CONTEXT *ctx,
444	CK_OBJECT_HANDLE key_handle)
445{
446	CK_ATTRIBUTE *attr = NULL;
447	OBJECT * key_obj  = NULL;
448	CK_OBJECT_CLASS   class;
449	CK_RV rc;
450
451	if (!sess || !ctx) {
452		return (CKR_FUNCTION_FAILED);
453	}
454
455	rc = object_mgr_find_in_map1(sess->hContext, key_handle, &key_obj);
456	if (rc != CKR_OK) {
457		return (CKR_KEY_HANDLE_INVALID);
458	}
459	rc = template_attribute_find(key_obj->template, CKA_CLASS, &attr);
460	if (rc == FALSE)
461		return (CKR_KEY_INDIGESTIBLE);
462	else
463		class = *(CK_OBJECT_CLASS *)attr->pValue;
464
465	if (class != CKO_SECRET_KEY)
466		return (CKR_KEY_INDIGESTIBLE);
467
468	rc = template_attribute_find(key_obj->template, CKA_VALUE, &attr);
469	if (! rc)
470		return (CKR_KEY_INDIGESTIBLE);
471
472	rc = digest_mgr_digest_update(sess,
473	    ctx, attr->pValue, attr->ulValueLen);
474	return (rc);
475}
476
477CK_RV
478digest_mgr_digest_final(SESSION *sess,
479	DIGEST_CONTEXT  *ctx,
480	CK_BYTE *hash,
481	CK_ULONG *hash_len)
482{
483	if (! sess || ! ctx) {
484		return (CKR_FUNCTION_FAILED);
485	}
486	if (ctx->active == FALSE) {
487		return (CKR_OPERATION_NOT_INITIALIZED);
488	}
489
490	ctx->multi = FALSE;
491	if (hash == NULL && hash_len == NULL)
492		return (CKR_ARGUMENTS_BAD);
493
494	switch (ctx->mech.mechanism) {
495		case CKM_SHA_1:
496			if (hash == NULL) {
497				*hash_len = SHA1_DIGEST_LENGTH;
498				return (CKR_OK);
499			}
500			if (*hash_len < SHA1_DIGEST_LENGTH)
501				return (CKR_BUFFER_TOO_SMALL);
502			SHA1Final(hash, ctx->context.sha1ctx);
503			if (hash_len)
504				*hash_len = SHA1_DIGEST_LENGTH;
505			return (CKR_OK);
506
507		case CKM_MD5:
508			if (hash == NULL) {
509				*hash_len = MD5_DIGEST_LENGTH;
510				return (CKR_OK);
511			}
512			if (*hash_len < MD5_DIGEST_LENGTH)
513				return (CKR_BUFFER_TOO_SMALL);
514			MD5Final(hash, ctx->context.md5ctx);
515			if (hash_len)
516				*hash_len = MD5_DIGEST_LENGTH;
517			return (CKR_OK);
518
519		default:
520			return (CKR_MECHANISM_INVALID);
521	}
522}
523