xref: /titanic_44/usr/src/lib/pkcs11/pkcs11_tpm/common/key.c (revision 47e946e784719ae402ace34695f67b0e6e76ae5c)

/*
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 * (C) COPYRIGHT International Business Machines Corp. 2001, 2002
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
#include "tpmtok_int.h"

CK_RV
key_object_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE * attr = NULL;
	CK_BBOOL    found;

	found = template_attribute_find(tmpl, CKA_KEY_TYPE, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	return (template_check_required_base_attributes(tmpl, mode));
}

CK_RV
key_object_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE * id_attr	= NULL;
	CK_ATTRIBUTE * sdate_attr  = NULL;
	CK_ATTRIBUTE * edate_attr  = NULL;
	CK_ATTRIBUTE * derive_attr = NULL;
	CK_ATTRIBUTE * local_attr  = NULL;

	// satisfy the compiler
	//
	if (mode)
		id_attr = NULL;

	id_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	sdate_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	edate_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	derive_attr    = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	local_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));

	if (! id_attr || ! sdate_attr || ! edate_attr ||
	    ! derive_attr || ! local_attr) {
		if (id_attr)	free(id_attr);
		if (sdate_attr)   free(sdate_attr);
		if (edate_attr)   free(edate_attr);
		if (derive_attr)  free(derive_attr);
		if (local_attr)   free(local_attr);
		return (CKR_HOST_MEMORY);
	}

	id_attr->type	   = CKA_ID;
	id_attr->ulValueLen	= 0;
	id_attr->pValue	 = NULL;

	sdate_attr->type	= CKA_START_DATE;
	sdate_attr->ulValueLen  = 0;
	sdate_attr->pValue	= NULL;

	edate_attr->type	= CKA_END_DATE;
	edate_attr->ulValueLen  = 0;
	edate_attr->pValue	= NULL;

	derive_attr->type	= CKA_DERIVE;
	derive_attr->ulValueLen = sizeof (CK_BBOOL);
	derive_attr->pValue	= (CK_BYTE *)derive_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)derive_attr->pValue = FALSE;

	local_attr->type	= CKA_LOCAL;
	local_attr->ulValueLen  = sizeof (CK_BBOOL);
	local_attr->pValue	= (CK_BYTE *)local_attr + sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)local_attr->pValue = FALSE;

	(void) template_update_attribute(tmpl, id_attr);
	(void) template_update_attribute(tmpl, sdate_attr);
	(void) template_update_attribute(tmpl, edate_attr);
	(void) template_update_attribute(tmpl, derive_attr);
	(void) template_update_attribute(tmpl, local_attr);

	return (CKR_OK);
}

CK_RV
key_object_validate_attribute(TEMPLATE *tmpl,
	CK_ATTRIBUTE *attr, CK_ULONG mode)
{
	switch (attr->type) {
		case CKA_KEY_TYPE:
		if (mode == MODE_CREATE || mode == MODE_DERIVE ||
		    mode == MODE_KEYGEN || mode == MODE_UNWRAP)
			return (CKR_OK);
		else {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		case CKA_ID:
		case CKA_START_DATE:
		case CKA_END_DATE:
		case CKA_DERIVE:
			return (CKR_OK);

		case CKA_LOCAL:
			return (CKR_ATTRIBUTE_READ_ONLY);

		default:
		return (template_validate_base_attribute(tmpl, attr, mode));
	}
}

CK_RV
publ_key_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode) {
	return (key_object_check_required_attributes(tmpl, mode));
}

CK_RV
publ_key_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE    *class_attr	  = NULL;
	CK_ATTRIBUTE    *subject_attr	= NULL;
	CK_ATTRIBUTE    *encrypt_attr	= NULL;
	CK_ATTRIBUTE    *verify_attr	 = NULL;
	CK_ATTRIBUTE    *verify_recover_attr = NULL;
	CK_ATTRIBUTE    *wrap_attr	   = NULL;

	CK_OBJECT_CLASS  class = CKO_PUBLIC_KEY;
	CK_RV	    rc;


	rc = key_object_set_default_attributes(tmpl, mode);
	if (rc != CKR_OK) {
		return (rc);
	}
	//
	// add the default CKO_PUBLIC_KEY attributes
	//
	class_attr	  = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_OBJECT_CLASS));
	subject_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	encrypt_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	verify_attr	 = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	verify_recover_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	wrap_attr	   = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));

	if (! class || ! subject_attr || ! encrypt_attr ||
	    ! verify_attr || ! verify_recover_attr || ! wrap_attr) {
		if (class_attr)	  free(class_attr);
		if (subject_attr)	free(subject_attr);
		if (encrypt_attr)	free(encrypt_attr);
		if (verify_attr)	 free(verify_attr);
		if (verify_recover_attr) free(verify_recover_attr);
		if (wrap_attr)	   free(wrap_attr);

		return (CKR_HOST_MEMORY);
	}

	class_attr->type	   = CKA_CLASS;
	class_attr->ulValueLen	= sizeof (CK_OBJECT_CLASS);
	class_attr->pValue	 = (CK_BYTE *)class_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_OBJECT_CLASS *)class_attr->pValue = CKO_PUBLIC_KEY;

	subject_attr->type	 = CKA_SUBJECT;
	subject_attr->ulValueLen   = 0;  // empty string
	subject_attr->pValue	= NULL;

	encrypt_attr->type	  = CKA_ENCRYPT;
	encrypt_attr->ulValueLen    = sizeof (CK_BBOOL);
	encrypt_attr->pValue	= (CK_BYTE *)encrypt_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)encrypt_attr->pValue = TRUE;

	verify_attr->type	  = CKA_VERIFY;
	verify_attr->ulValueLen    = sizeof (CK_BBOOL);
	verify_attr->pValue	= (CK_BYTE *)verify_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)verify_attr->pValue = TRUE;

	verify_recover_attr->type	  = CKA_VERIFY_RECOVER;
	verify_recover_attr->ulValueLen    = sizeof (CK_BBOOL);
	verify_recover_attr->pValue	= (CK_BYTE *)verify_recover_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)verify_recover_attr->pValue = TRUE;

	wrap_attr->type	  = CKA_WRAP;
	wrap_attr->ulValueLen    = sizeof (CK_BBOOL);
	wrap_attr->pValue	= (CK_BYTE *)wrap_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)wrap_attr->pValue = TRUE;

	(void) template_update_attribute(tmpl, class_attr);
	(void) template_update_attribute(tmpl, subject_attr);
	(void) template_update_attribute(tmpl, encrypt_attr);
	(void) template_update_attribute(tmpl, verify_attr);
	(void) template_update_attribute(tmpl, verify_recover_attr);
	(void) template_update_attribute(tmpl, wrap_attr);

	return (CKR_OK);
}

CK_RV
publ_key_validate_attribute(TEMPLATE *tmpl,
	CK_ATTRIBUTE *attr, CK_ULONG mode) {
	switch (attr->type) {
		case CKA_SUBJECT:
			return (CKR_OK);

		case CKA_ENCRYPT:
		case CKA_VERIFY:
		case CKA_VERIFY_RECOVER:
		case CKA_WRAP:
		if (mode == MODE_MODIFY) {
			if (nv_token_data->tweak_vector.allow_key_mods == TRUE)
				return (CKR_OK);
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		return (CKR_OK);

		default:
		return (key_object_validate_attribute(tmpl, attr, mode));
	}
}

CK_RV
priv_key_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode) {
	return (key_object_check_required_attributes(tmpl, mode));
}

CK_RV
priv_key_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE    *class_attr	= NULL;
	CK_ATTRIBUTE    *subject_attr	= NULL;
	CK_ATTRIBUTE    *sensitive_attr    = NULL;
	CK_ATTRIBUTE    *decrypt_attr	= NULL;
	CK_ATTRIBUTE    *sign_attr	 = NULL;
	CK_ATTRIBUTE    *sign_recover_attr = NULL;
	CK_ATTRIBUTE    *unwrap_attr	= NULL;
	CK_ATTRIBUTE    *extractable_attr  = NULL;
	CK_ATTRIBUTE    *never_extr_attr   = NULL;
	CK_ATTRIBUTE    *always_sens_attr  = NULL;
	CK_RV	    rc;


	rc = key_object_set_default_attributes(tmpl, mode);
	if (rc != CKR_OK) {
		return (rc);
	}
	class_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_OBJECT_CLASS));
	subject_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	sensitive_attr    = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	decrypt_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	sign_attr	 = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	sign_recover_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	unwrap_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	extractable_attr  = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	never_extr_attr   = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	always_sens_attr  = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));

	if (! class_attr || ! subject_attr || ! sensitive_attr ||
	    ! decrypt_attr || ! sign_attr || ! sign_recover_attr ||
	    ! unwrap_attr || ! extractable_attr ||
	    ! never_extr_attr || ! always_sens_attr) {
		if (class_attr)	free(class_attr);
		if (subject_attr)	free(subject_attr);
		if (sensitive_attr)    free(sensitive_attr);
		if (decrypt_attr)	free(decrypt_attr);
		if (sign_attr)	 free(sign_attr);
		if (sign_recover_attr) free(sign_recover_attr);
		if (unwrap_attr)	free(unwrap_attr);
		if (extractable_attr)  free(extractable_attr);
		if (always_sens_attr)  free(always_sens_attr);
		if (never_extr_attr)   free(never_extr_attr);

		return (CKR_HOST_MEMORY);
	}

	class_attr->type	= CKA_CLASS;
	class_attr->ulValueLen = sizeof (CK_OBJECT_CLASS);
	class_attr->pValue	= (CK_BYTE *)class_attr + sizeof (CK_ATTRIBUTE);
	*(CK_OBJECT_CLASS *)class_attr->pValue = CKO_PRIVATE_KEY;

	subject_attr->type	= CKA_SUBJECT;
	subject_attr->ulValueLen = 0;  // empty string
	subject_attr->pValue	= NULL;

	sensitive_attr->type	= CKA_SENSITIVE;
	sensitive_attr->ulValueLen = sizeof (CK_BBOOL);
	sensitive_attr->pValue	= (CK_BYTE *)sensitive_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)sensitive_attr->pValue = FALSE;

	decrypt_attr->type	= CKA_DECRYPT;
	decrypt_attr->ulValueLen = sizeof (CK_BBOOL);
	decrypt_attr->pValue	= (CK_BYTE *)decrypt_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)decrypt_attr->pValue = TRUE;

	sign_attr->type	= CKA_SIGN;
	sign_attr->ulValueLen = sizeof (CK_BBOOL);
	sign_attr->pValue	= (CK_BYTE *)sign_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)sign_attr->pValue = TRUE;

	sign_recover_attr->type	= CKA_SIGN_RECOVER;
	sign_recover_attr->ulValueLen = sizeof (CK_BBOOL);
	sign_recover_attr->pValue	= (CK_BYTE *)sign_recover_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)sign_recover_attr->pValue = TRUE;

	unwrap_attr->type	= CKA_UNWRAP;
	unwrap_attr->ulValueLen = sizeof (CK_BBOOL);
	unwrap_attr->pValue	= (CK_BYTE *)unwrap_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)unwrap_attr->pValue = TRUE;

	extractable_attr->type	= CKA_EXTRACTABLE;
	extractable_attr->ulValueLen = sizeof (CK_BBOOL);
	extractable_attr->pValue	= (CK_BYTE *)extractable_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)extractable_attr->pValue = TRUE;

	never_extr_attr->type	= CKA_NEVER_EXTRACTABLE;
	never_extr_attr->ulValueLen = sizeof (CK_BBOOL);
	never_extr_attr->pValue	= (CK_BYTE *)never_extr_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)never_extr_attr->pValue = FALSE;

	always_sens_attr->type	= CKA_ALWAYS_SENSITIVE;
	always_sens_attr->ulValueLen = sizeof (CK_BBOOL);
	always_sens_attr->pValue	= (CK_BYTE *)always_sens_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)always_sens_attr->pValue = FALSE;

	(void) template_update_attribute(tmpl, class_attr);
	(void) template_update_attribute(tmpl, subject_attr);
	(void) template_update_attribute(tmpl, sensitive_attr);
	(void) template_update_attribute(tmpl, decrypt_attr);
	(void) template_update_attribute(tmpl, sign_attr);
	(void) template_update_attribute(tmpl, sign_recover_attr);
	(void) template_update_attribute(tmpl, unwrap_attr);
	(void) template_update_attribute(tmpl, extractable_attr);
	(void) template_update_attribute(tmpl, never_extr_attr);
	(void) template_update_attribute(tmpl, always_sens_attr);

	return (CKR_OK);
}

CK_RV
priv_key_unwrap(TEMPLATE *tmpl,
	CK_ULONG  keytype,
	CK_BYTE  *data,
	CK_ULONG  data_len)
{
	CK_ATTRIBUTE *extractable   = NULL;
	CK_ATTRIBUTE *always_sens   = NULL;
	CK_ATTRIBUTE *never_extract = NULL;
	CK_ATTRIBUTE *sensitive	= NULL;
	CK_ATTRIBUTE *local	 = NULL;
	CK_BBOOL   true  = TRUE;
	CK_BBOOL   false = FALSE;
	CK_RV	rc;

	switch (keytype) {
		case CKK_RSA:
		rc = rsa_priv_unwrap(tmpl, data, data_len);
		break;

		default:
		return (CKR_WRAPPED_KEY_INVALID);
	}

	if (rc != CKR_OK) {
		return (rc);
	}

	/*
	 * make sure
	 *    CKA_LOCAL		== FALSE
	 *    CKA_ALWAYS_SENSITIVE  == FALSE
	 *    CKA_EXTRACTABLE	== TRUE
	 *    CKA_NEVER_EXTRACTABLE == FALSE
	 */
	rc = build_attribute(CKA_LOCAL,  &false, 1, &local);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_ALWAYS_SENSITIVE,  &false, 1, &always_sens);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_SENSITIVE,	 &false, 1, &sensitive);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_EXTRACTABLE,	&true,  1, &extractable);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_NEVER_EXTRACTABLE, &false, 1, &never_extract);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	(void) template_update_attribute(tmpl, local);
	(void) template_update_attribute(tmpl, always_sens);
	(void) template_update_attribute(tmpl, sensitive);
	(void) template_update_attribute(tmpl, extractable);
	(void) template_update_attribute(tmpl, never_extract);

	return (CKR_OK);

	cleanup:

	if (local)	 free(local);
	if (always_sens)   free(always_sens);
	if (extractable)   free(extractable);
	if (never_extract) free(never_extract);

	return (rc);
}

CK_RV
priv_key_validate_attribute(TEMPLATE *tmpl, CK_ATTRIBUTE *attr, CK_ULONG mode) {
	switch (attr->type) {
		case CKA_SUBJECT:
		return (CKR_OK);

		case CKA_DECRYPT:
		case CKA_SIGN:
		case CKA_SIGN_RECOVER:
		case CKA_UNWRAP:
		// we might want to do this for MODE_COPY too
		//
		if (mode == MODE_MODIFY) {
			if (nv_token_data->tweak_vector.allow_key_mods == TRUE)
				return (CKR_OK);
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		return (CKR_OK);

		// after key creation, CKA_SENSITIVE may only be set to TRUE
		//
		case CKA_SENSITIVE:
		{
			CK_BBOOL value;

			if (mode == MODE_CREATE || mode == MODE_KEYGEN)
				return (CKR_OK);

			value = *(CK_BBOOL *)attr->pValue;
			if (value != TRUE) {
				return (CKR_ATTRIBUTE_READ_ONLY);
			}
		}
		return (CKR_OK);

		case CKA_EXTRACTABLE:
		{
			CK_BBOOL value;

			value = *(CK_BBOOL *)attr->pValue;
			if ((mode != MODE_CREATE && mode != MODE_KEYGEN) &&
			    value != FALSE) {
				return (CKR_ATTRIBUTE_READ_ONLY);
			}
			if (value == FALSE) {
				CK_ATTRIBUTE *attr;

				attr = (CK_ATTRIBUTE *)malloc(
				    sizeof (CK_ATTRIBUTE) + sizeof (CK_BBOOL));
				if (! attr) {
					return (CKR_HOST_MEMORY);
				}
				attr->type	= CKA_NEVER_EXTRACTABLE;
				attr->ulValueLen = sizeof (CK_BBOOL);
				attr->pValue	= (CK_BYTE *)attr +
				    sizeof (CK_ATTRIBUTE);
				*(CK_BBOOL *)attr->pValue = FALSE;

				(void) template_update_attribute(tmpl, attr);
			}
		}
		return (CKR_OK);

		case CKA_ALWAYS_SENSITIVE:
		case CKA_NEVER_EXTRACTABLE:
		return (CKR_ATTRIBUTE_READ_ONLY);

		default:
		return (key_object_validate_attribute(tmpl, attr, mode));
	}
}

CK_RV
secret_key_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	return (key_object_check_required_attributes(tmpl, mode));
}

CK_RV
secret_key_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE	*class_attr	= NULL;
	CK_ATTRIBUTE	*sensitive_attr   = NULL;
	CK_ATTRIBUTE	*encrypt_attr	= NULL;
	CK_ATTRIBUTE	*decrypt_attr	= NULL;
	CK_ATTRIBUTE	*sign_attr	= NULL;
	CK_ATTRIBUTE	*verify_attr	= NULL;
	CK_ATTRIBUTE	*wrap_attr	= NULL;
	CK_ATTRIBUTE	*unwrap_attr	= NULL;
	CK_ATTRIBUTE	*extractable_attr = NULL;
	CK_ATTRIBUTE	*never_extr_attr  = NULL;
	CK_ATTRIBUTE	*always_sens_attr = NULL;
	CK_RV	    rc;


	rc = key_object_set_default_attributes(tmpl, mode);
	if (rc != CKR_OK)
		return (rc);

	class_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_OBJECT_CLASS));
	sensitive_attr   = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	encrypt_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	decrypt_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	sign_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	verify_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	wrap_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	unwrap_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	extractable_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	never_extr_attr  = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));
	always_sens_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_BBOOL));

	if (! class_attr || ! sensitive_attr || ! encrypt_attr ||
	    ! decrypt_attr || ! sign_attr || ! verify_attr ||
	    ! wrap_attr	|| ! unwrap_attr || ! extractable_attr ||
	    ! never_extr_attr || ! always_sens_attr) {
		if (class_attr)	free(class_attr);
		if (sensitive_attr)   free(sensitive_attr);
		if (encrypt_attr)	free(encrypt_attr);
		if (decrypt_attr)	free(decrypt_attr);
		if (sign_attr)	free(sign_attr);
		if (verify_attr)	free(verify_attr);
		if (wrap_attr)	free(wrap_attr);
		if (unwrap_attr)	free(unwrap_attr);
		if (extractable_attr) free(extractable_attr);
		if (never_extr_attr)  free(never_extr_attr);
		if (always_sens_attr) free(always_sens_attr);

		return (CKR_HOST_MEMORY);
	}

	class_attr->type	= CKA_CLASS;
	class_attr->ulValueLen = sizeof (CK_OBJECT_CLASS);
	class_attr->pValue	= (CK_BYTE *)class_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_OBJECT_CLASS *)class_attr->pValue = CKO_SECRET_KEY;

	sensitive_attr->type	= CKA_SENSITIVE;
	sensitive_attr->ulValueLen = sizeof (CK_BBOOL);
	sensitive_attr->pValue	= (CK_BYTE *)sensitive_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)sensitive_attr->pValue = FALSE;

	encrypt_attr->type	= CKA_ENCRYPT;
	encrypt_attr->ulValueLen = sizeof (CK_BBOOL);
	encrypt_attr->pValue	= (CK_BYTE *)encrypt_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)encrypt_attr->pValue = TRUE;

	decrypt_attr->type	= CKA_DECRYPT;
	decrypt_attr->ulValueLen = sizeof (CK_BBOOL);
	decrypt_attr->pValue	= (CK_BYTE *)decrypt_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)decrypt_attr->pValue = TRUE;

	sign_attr->type	= CKA_SIGN;
	sign_attr->ulValueLen = sizeof (CK_BBOOL);
	sign_attr->pValue	= (CK_BYTE *)sign_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)sign_attr->pValue = TRUE;

	verify_attr->type	= CKA_VERIFY;
	verify_attr->ulValueLen = sizeof (CK_BBOOL);
	verify_attr->pValue	= (CK_BYTE *)verify_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)verify_attr->pValue = TRUE;

	wrap_attr->type	= CKA_WRAP;
	wrap_attr->ulValueLen = sizeof (CK_BBOOL);
	wrap_attr->pValue	= (CK_BYTE *)wrap_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)wrap_attr->pValue = TRUE;

	unwrap_attr->type	= CKA_UNWRAP;
	unwrap_attr->ulValueLen = sizeof (CK_BBOOL);
	unwrap_attr->pValue	= (CK_BYTE *)unwrap_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)unwrap_attr->pValue = TRUE;

	extractable_attr->type	= CKA_EXTRACTABLE;
	extractable_attr->ulValueLen = sizeof (CK_BBOOL);
	extractable_attr->pValue	= (CK_BYTE *)extractable_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)extractable_attr->pValue = TRUE;

	always_sens_attr->type	= CKA_ALWAYS_SENSITIVE;
	always_sens_attr->ulValueLen = sizeof (CK_BBOOL);
	always_sens_attr->pValue	= (CK_BYTE *)always_sens_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)always_sens_attr->pValue = FALSE;

	never_extr_attr->type	= CKA_NEVER_EXTRACTABLE;
	never_extr_attr->ulValueLen = sizeof (CK_BBOOL);
	never_extr_attr->pValue	= (CK_BYTE *)never_extr_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_BBOOL *)never_extr_attr->pValue = FALSE;

	(void) template_update_attribute(tmpl, class_attr);
	(void) template_update_attribute(tmpl, sensitive_attr);
	(void) template_update_attribute(tmpl, encrypt_attr);
	(void) template_update_attribute(tmpl, decrypt_attr);
	(void) template_update_attribute(tmpl, sign_attr);
	(void) template_update_attribute(tmpl, verify_attr);
	(void) template_update_attribute(tmpl, wrap_attr);
	(void) template_update_attribute(tmpl, unwrap_attr);
	(void) template_update_attribute(tmpl, extractable_attr);
	(void) template_update_attribute(tmpl, never_extr_attr);
	(void) template_update_attribute(tmpl, always_sens_attr);

	return (CKR_OK);
}

CK_RV
secret_key_unwrap(TEMPLATE *tmpl,
	CK_ULONG  keytype,
	CK_BYTE  *data,
	CK_ULONG  data_len,
	CK_BBOOL  fromend)
{
	CK_ATTRIBUTE *local	 = NULL;
	CK_ATTRIBUTE *always_sens   = NULL;
	CK_ATTRIBUTE *sensitive	= NULL;
	CK_ATTRIBUTE *extractable   = NULL;
	CK_ATTRIBUTE *never_extract = NULL;
	CK_BBOOL   true  = TRUE;
	CK_BBOOL   false = FALSE;
	CK_RV	rc;

	switch (keytype) {
		case CKK_GENERIC_SECRET:
		rc = generic_secret_unwrap(tmpl, data, data_len, fromend);
		break;

		default:
		return (CKR_WRAPPED_KEY_INVALID);
	}

	if (rc != CKR_OK)
		return (rc);

	// make sure
	//    CKA_LOCAL		== FALSE
	//    CKA_ALWAYS_SENSITIVE  == FALSE
	//    CKA_EXTRACTABLE	== TRUE
	//    CKA_NEVER_EXTRACTABLE == FALSE
	//
	rc = build_attribute(CKA_LOCAL,		&false, 1, &local);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_ALWAYS_SENSITIVE,  &false, 1, &always_sens);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_SENSITIVE,	 &false, 1, &sensitive);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_EXTRACTABLE,	&true,  1, &extractable);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	rc = build_attribute(CKA_NEVER_EXTRACTABLE, &false, 1, &never_extract);
	if (rc != CKR_OK) {
		goto cleanup;
	}
	(void) template_update_attribute(tmpl, local);
	(void) template_update_attribute(tmpl, always_sens);
	(void) template_update_attribute(tmpl, sensitive);
	(void) template_update_attribute(tmpl, extractable);
	(void) template_update_attribute(tmpl, never_extract);

	return (CKR_OK);

	cleanup:

	if (local)	 free(local);
	if (extractable)   free(extractable);
	if (always_sens)   free(always_sens);
	if (never_extract) free(never_extract);

	return (rc);
}

CK_RV
secret_key_validate_attribute(TEMPLATE *tmpl, CK_ATTRIBUTE *attr,
	CK_ULONG mode)
{
	switch (attr->type) {
		case CKA_ENCRYPT:
		case CKA_DECRYPT:
		case CKA_SIGN:
		case CKA_VERIFY:
		case CKA_WRAP:
		case CKA_UNWRAP:
		if (mode == MODE_MODIFY) {
			if (nv_token_data->tweak_vector.allow_key_mods == TRUE)
				return (CKR_OK);
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		return (CKR_OK);

		// after key creation, CKA_SENSITIVE may only be set to TRUE
		//
		case CKA_SENSITIVE:
		{
			CK_BBOOL value;

			value = *(CK_BBOOL *)attr->pValue;
			if ((mode != MODE_CREATE && mode != MODE_DERIVE &&
			    mode != MODE_KEYGEN) && (value != TRUE)) {
				return (CKR_ATTRIBUTE_READ_ONLY);
			}
		}
		return (CKR_OK);

		case CKA_EXTRACTABLE:
		{
			CK_BBOOL value;

			value = *(CK_BBOOL *)attr->pValue;
			if ((mode != MODE_CREATE && mode != MODE_DERIVE &&
			    mode != MODE_KEYGEN) && (value != FALSE)) {
				return (CKR_ATTRIBUTE_READ_ONLY);
			}
			if (value == FALSE) {
				CK_ATTRIBUTE *attr;

				attr = (CK_ATTRIBUTE *)malloc(
				    sizeof (CK_ATTRIBUTE) + sizeof (CK_BBOOL));
				if (! attr) {
					return (CKR_HOST_MEMORY);
				}
				attr->type = CKA_NEVER_EXTRACTABLE;
				attr->ulValueLen = sizeof (CK_BBOOL);
				attr->pValue = (CK_BYTE *)attr +
				    sizeof (CK_ATTRIBUTE);
				*(CK_BBOOL *)attr->pValue = FALSE;

				(void) template_update_attribute(tmpl, attr);
			}
		}
		return (CKR_OK);

		case CKA_ALWAYS_SENSITIVE:
		case CKA_NEVER_EXTRACTABLE:
			return (CKR_ATTRIBUTE_READ_ONLY);

		default:
			return (key_object_validate_attribute(tmpl,
			    attr, mode));
	}
}

CK_BBOOL
secret_key_check_exportability(CK_ATTRIBUTE_TYPE type)
{
	switch (type) {
		case CKA_VALUE:
		return (FALSE);
	}

	return (TRUE);
}

CK_RV
rsa_publ_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE *attr = NULL;
	CK_BBOOL   found;

	found = template_attribute_find(tmpl, CKA_MODULUS, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_MODULUS_BITS, &attr);
	if (! found) {
		if (mode == MODE_KEYGEN) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_PUBLIC_EXPONENT, &attr);
	if (! found) {
		if (mode == MODE_CREATE || mode == MODE_KEYGEN) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	return (publ_key_check_required_attributes(tmpl, mode));
}

CK_RV
rsa_publ_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE   *type_attr	 = NULL;
	CK_ATTRIBUTE   *modulus_attr	= NULL;
	CK_ATTRIBUTE   *modulus_bits_attr = NULL;
	CK_ATTRIBUTE   *public_exp_attr   = NULL;
	CK_ULONG	bits = 0L;

	(void) publ_key_set_default_attributes(tmpl, mode);

	type_attr	 = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_KEY_TYPE));
	modulus_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	modulus_bits_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_ULONG));
	public_exp_attr   = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));

	if (! type_attr || ! modulus_attr ||
	    ! modulus_bits_attr || ! public_exp_attr) {
		if (type_attr)	 free(type_attr);
		if (modulus_attr)	free(modulus_attr);
		if (modulus_bits_attr) free(modulus_bits_attr);
		if (public_exp_attr)   free(public_exp_attr);

		return (CKR_HOST_MEMORY);
	}

	type_attr->type	= CKA_KEY_TYPE;
	type_attr->ulValueLen = sizeof (CK_KEY_TYPE);
	type_attr->pValue	= (CK_BYTE *)type_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_KEY_TYPE *)type_attr->pValue = CKK_RSA;

	modulus_attr->type	= CKA_MODULUS;
	modulus_attr->ulValueLen = 0;
	modulus_attr->pValue	= NULL;

	modulus_bits_attr->type	= CKA_MODULUS_BITS;
	modulus_bits_attr->ulValueLen = sizeof (CK_ULONG);
	modulus_bits_attr->pValue = (CK_BYTE *)modulus_bits_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_ULONG *)modulus_bits_attr->pValue = bits;

	public_exp_attr->type	= CKA_PUBLIC_EXPONENT;
	public_exp_attr->ulValueLen = 0;
	public_exp_attr->pValue	= NULL;

	(void) template_update_attribute(tmpl, type_attr);
	(void) template_update_attribute(tmpl, modulus_attr);
	(void) template_update_attribute(tmpl, modulus_bits_attr);
	(void) template_update_attribute(tmpl, public_exp_attr);

	return (CKR_OK);
}

CK_RV
rsa_publ_validate_attribute(TEMPLATE *tmpl, CK_ATTRIBUTE *attr, CK_ULONG mode) {
	switch (attr->type) {
		case CKA_MODULUS_BITS:
		if (mode == MODE_KEYGEN) {
			if (attr->ulValueLen != sizeof (CK_ULONG)) {
				return (CKR_ATTRIBUTE_VALUE_INVALID);
			} else {
				CK_ULONG mod_bits = *(CK_ULONG *)attr->pValue;

				if (mod_bits < 512 || mod_bits > 2048) {
					return (CKR_ATTRIBUTE_VALUE_INVALID);
				}

				if (mod_bits % 8 != 0) {
					return (CKR_ATTRIBUTE_VALUE_INVALID);
				}
				return (CKR_OK);
			}
		} else {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		case CKA_MODULUS:
		if (mode == MODE_CREATE)
			return (remove_leading_zeros(attr));
		else {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		case CKA_PUBLIC_EXPONENT:
		if (mode == MODE_CREATE || mode == MODE_KEYGEN)
			return (remove_leading_zeros(attr));
		else {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		default:
		return (publ_key_validate_attribute(tmpl, attr, mode));
	}
}

CK_RV
rsa_priv_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode) {
	CK_ATTRIBUTE *attr = NULL;
	CK_BBOOL   found;

	found = template_attribute_find(tmpl, CKA_MODULUS, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	//
	// PKCS #11 is flexible with respect to which attributes must be present
	// in an RSA key.  Keys can be specified in Chinese Remainder format or
	// they can be specified in modula exponent format. Right now, I only
	// support keys created in Chinese Remainder format. That is, we return
	// CKR_TEMPLATE_INCOMPLETE if a modula exponent key is specified.  This
	// is allowed by PKCS #11.
	//
	// In the future, we should allow for creation of keys in modula exp
	// format too.  This raises some issues.  It's easy enough to recognize
	// when a key has been specified in modula exponent format.  And it's
	// easy enough to recognize when all attributes have been specified
	// (which is what we require right now).  What's trickier to handle is
	// the "middle" cases in which more than the minimum yet less than the
	// full number of attributes have been specified.  Do we revert back to
	// modula - exponent representation?  Do we compute the missing
	// attributes ourselves?  Do we simply return CKR_TEMPLATE_INCOMPLETE?
	//

	found = template_attribute_find(tmpl, CKA_PUBLIC_EXPONENT, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_PRIVATE_EXPONENT, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_PRIME_1, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_PRIME_2, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_EXPONENT_1, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_EXPONENT_2, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	found = template_attribute_find(tmpl, CKA_COEFFICIENT, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}

	return (priv_key_check_required_attributes(tmpl, mode));
}

CK_RV
rsa_priv_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE   *modulus_attr	= NULL;
	CK_ATTRIBUTE   *public_exp_attr   = NULL;
	CK_ATTRIBUTE   *private_exp_attr  = NULL;
	CK_ATTRIBUTE   *type_attr	 = NULL;

	(void) priv_key_set_default_attributes(tmpl, mode);

	type_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_KEY_TYPE));
	modulus_attr	= (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	public_exp_attr   = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	private_exp_attr  = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));

	if (! type_attr || ! modulus_attr || ! public_exp_attr ||
	    ! private_exp_attr) {
		if (type_attr)	free(type_attr);
		if (modulus_attr)	free(modulus_attr);
		if (public_exp_attr)  free(public_exp_attr);
		if (private_exp_attr) free(private_exp_attr);

		return (CKR_HOST_MEMORY);
	}

	modulus_attr->type	= CKA_MODULUS;
	modulus_attr->ulValueLen = 0;
	modulus_attr->pValue	= NULL;

	public_exp_attr->type	= CKA_PUBLIC_EXPONENT;
	public_exp_attr->ulValueLen = 0;
	public_exp_attr->pValue	= NULL;

	private_exp_attr->type	= CKA_PRIVATE_EXPONENT;
	private_exp_attr->ulValueLen = 0;
	private_exp_attr->pValue	= NULL;

	type_attr->type	= CKA_KEY_TYPE;
	type_attr->ulValueLen = sizeof (CK_KEY_TYPE);
	type_attr->pValue = (CK_BYTE *)type_attr + sizeof (CK_ATTRIBUTE);
	*(CK_KEY_TYPE *)type_attr->pValue = CKK_RSA;

	(void) template_update_attribute(tmpl, type_attr);
	(void) template_update_attribute(tmpl, modulus_attr);
	(void) template_update_attribute(tmpl, public_exp_attr);
	(void) template_update_attribute(tmpl, private_exp_attr);

	return (CKR_OK);
}

CK_RV
rsa_priv_validate_attribute(TEMPLATE *tmpl, CK_ATTRIBUTE *attr, CK_ULONG mode) {
	switch (attr->type) {
		case CKA_MODULUS:
		case CKA_PRIVATE_EXPONENT:
		if (mode == MODE_CREATE)
			return (remove_leading_zeros(attr));
		else {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		case CKA_PUBLIC_EXPONENT:
		case CKA_PRIME_1:
		case CKA_PRIME_2:
		case CKA_EXPONENT_1:
		case CKA_EXPONENT_2:
		case CKA_COEFFICIENT:
		if (mode == MODE_CREATE)
			return (remove_leading_zeros(attr));
		else {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
		default:
		return (priv_key_validate_attribute(tmpl, attr, mode));
	}
}

CK_BBOOL
rsa_priv_check_exportability(CK_ATTRIBUTE_TYPE type) {
	switch (type) {
		case CKA_PRIVATE_EXPONENT:
		case CKA_PRIME_1:
		case CKA_PRIME_2:
		case CKA_EXPONENT_1:
		case CKA_EXPONENT_2:
		case CKA_COEFFICIENT:
		return (FALSE);
	}

	return (TRUE);
}


/*
 * create the ASN.1 encoding for the private key for wrapping as defined
 * in PKCS #8
 *
 * ASN.1 type PrivateKeyInfo ::= SEQUENCE {
 *    version Version
 *    privateKeyAlgorithm  PrivateKeyAlgorithmIdentifier
 *    privateKey PrivateKey
 *    attributes OPTIONAL
 *
 * }
 *
 * Where PrivateKey is defined as follows for RSA:
 *
 * ASN.1 type RSAPrivateKey
 *
 * RSAPrivateKey ::= SEQUENCE {
 *   version Version
 *   modulus INTEGER
 *   publicExponent INTEGER
 *   privateExponent INTEGER
 *   prime1 INTEGER
 *   prime2 INTEGER
 *   exponent1 INTEGER
 *   exponent2 INTEGER
 *   coefficient INTEGER
 * }
 */
CK_RV
rsa_priv_wrap_get_data(TEMPLATE  *tmpl,
	CK_BBOOL   length_only,
	CK_BYTE  **data,
	CK_ULONG  *data_len)
{
	CK_ATTRIBUTE *modulus   = NULL;
	CK_ATTRIBUTE *publ_exp  = NULL, *priv_exp  = NULL;
	CK_ATTRIBUTE *prime1    = NULL, *prime2    = NULL;
	CK_ATTRIBUTE *exponent1 = NULL, *exponent2 = NULL;
	CK_ATTRIBUTE *coeff	= NULL;
	CK_RV	rc;

	if (template_attribute_find(tmpl, CKA_MODULUS, &modulus) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_PUBLIC_EXPONENT,
	    &publ_exp) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_PRIVATE_EXPONENT,
	    &priv_exp) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_PRIME_1,
	    &prime1) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_PRIME_2,
	    &prime2) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_EXPONENT_1,
	    &exponent1) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_EXPONENT_2,
	    &exponent2) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	if (template_attribute_find(tmpl, CKA_COEFFICIENT,
	    &coeff) == FALSE) {
		return (CKR_FUNCTION_FAILED);
	}
	rc = ber_encode_RSAPrivateKey(length_only, data, data_len,
	    modulus, publ_exp,  priv_exp, prime1,    prime2,
	    exponent1, exponent2, coeff);

	return (rc);
}

CK_RV
rsa_priv_unwrap(TEMPLATE *tmpl,
	CK_BYTE  *data,
	CK_ULONG  total_length)
{
	CK_ATTRIBUTE *modulus   = NULL;
	CK_ATTRIBUTE *publ_exp  = NULL;
	CK_ATTRIBUTE *priv_exp  = NULL;
	CK_ATTRIBUTE *prime1    = NULL;
	CK_ATTRIBUTE *prime2    = NULL;
	CK_ATTRIBUTE *exponent1 = NULL;
	CK_ATTRIBUTE *exponent2 = NULL;
	CK_ATTRIBUTE *coeff	= NULL;
	CK_RV	rc;

	rc = ber_decode_RSAPrivateKey(data, total_length,
	    &modulus, &publ_exp, &priv_exp, &prime1, &prime2,
	    &exponent1, &exponent2, &coeff);

	if (rc != CKR_OK) {
		return (rc);
	}
	(void) remove_leading_zeros(modulus);
	(void) remove_leading_zeros(publ_exp);
	(void) remove_leading_zeros(priv_exp);
	(void) remove_leading_zeros(prime1);
	(void) remove_leading_zeros(prime2);
	(void) remove_leading_zeros(exponent1);
	(void) remove_leading_zeros(exponent2);
	(void) remove_leading_zeros(coeff);

	(void) template_update_attribute(tmpl, modulus);
	(void) template_update_attribute(tmpl, publ_exp);
	(void) template_update_attribute(tmpl, priv_exp);
	(void) template_update_attribute(tmpl, prime1);
	(void) template_update_attribute(tmpl, prime2);
	(void) template_update_attribute(tmpl, exponent1);
	(void) template_update_attribute(tmpl, exponent2);
	(void) template_update_attribute(tmpl, coeff);

	return (CKR_OK);
}

CK_RV
generic_secret_check_required_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE *attr = NULL;
	CK_BBOOL   found;

	found = template_attribute_find(tmpl, CKA_VALUE, &attr);
	if (! found) {
		if (mode == MODE_CREATE) {
			return (CKR_TEMPLATE_INCOMPLETE);
		}
	}


	found = template_attribute_find(tmpl, CKA_VALUE_LEN, &attr);
	if (! found) {
		return (CKR_OK);
	} else {
		if (mode == MODE_CREATE) {
			return (CKR_ATTRIBUTE_READ_ONLY);
		}
	}

	return (secret_key_check_required_attributes(tmpl, mode));
}

CK_RV
generic_secret_set_default_attributes(TEMPLATE *tmpl, CK_ULONG mode)
{
	CK_ATTRIBUTE   *value_attr	= NULL;
	CK_ATTRIBUTE   *value_len_attr   = NULL;
	CK_ATTRIBUTE   *type_attr	= NULL;
	CK_ULONG    len = 0L;

	if (mode)
		value_attr = NULL;

	(void) secret_key_set_default_attributes(tmpl, mode);

	type_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_KEY_TYPE));
	value_attr = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE));
	value_len_attr  = (CK_ATTRIBUTE *)malloc(sizeof (CK_ATTRIBUTE) +
	    sizeof (CK_ULONG));

	if (! type_attr || ! value_attr || ! value_len_attr) {
		if (type_attr)	free(type_attr);
		if (value_attr)	free(value_attr);
		if (value_len_attr) free(value_len_attr);

		return (CKR_HOST_MEMORY);
	}

	value_attr->type	= CKA_VALUE;
	value_attr->ulValueLen = 0;
	value_attr->pValue	= NULL;

	value_len_attr->type	= CKA_VALUE_LEN;
	value_len_attr->ulValueLen = sizeof (CK_ULONG);
	value_len_attr->pValue	= (CK_BYTE *)value_len_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_ULONG *)value_len_attr->pValue = len;

	type_attr->type	= CKA_KEY_TYPE;
	type_attr->ulValueLen = sizeof (CK_KEY_TYPE);
	type_attr->pValue	= (CK_BYTE *)type_attr +
	    sizeof (CK_ATTRIBUTE);
	*(CK_KEY_TYPE *)type_attr->pValue = CKK_GENERIC_SECRET;

	(void) template_update_attribute(tmpl, type_attr);
	(void) template_update_attribute(tmpl, value_attr);
	(void) template_update_attribute(tmpl, value_len_attr);

	return (CKR_OK);
}

CK_RV
generic_secret_validate_attribute(TEMPLATE *tmpl,
	CK_ATTRIBUTE *attr, CK_ULONG mode)
{
	switch (attr->type) {
		case CKA_VALUE:
		if (mode == MODE_CREATE)
			return (CKR_OK);
		else
			return (CKR_ATTRIBUTE_READ_ONLY);

		case CKA_VALUE_LEN:
		if (mode == MODE_KEYGEN || mode == MODE_DERIVE)
			return (CKR_OK);
		else {
			if (mode == MODE_UNWRAP) {
				return (CKR_OK);
			}
			return (CKR_ATTRIBUTE_READ_ONLY);
		}

		default:
		return (secret_key_validate_attribute(tmpl, attr, mode));
	}
}

CK_BBOOL
generic_secret_check_exportability(CK_ATTRIBUTE_TYPE type) {
	switch (type) {
		case CKA_VALUE:
		return (FALSE);
	}

	return (TRUE);
}

CK_RV
generic_secret_wrap_get_data(TEMPLATE   * tmpl,
	CK_BBOOL	length_only,
	CK_BYTE   ** data,
	CK_ULONG   * data_len)
{
	CK_ATTRIBUTE    * attr = NULL;
	CK_BYTE	* ptr  = NULL;
	CK_RV	  rc;

	if (! tmpl || ! data_len) {
		return (CKR_FUNCTION_FAILED);
	}

	rc = template_attribute_find(tmpl, CKA_VALUE, &attr);
	if (rc == FALSE) {
		return (CKR_KEY_NOT_WRAPPABLE);
	}
	*data_len = attr->ulValueLen;

	if (length_only == FALSE) {
		ptr = (CK_BYTE *)malloc(attr->ulValueLen);
		if (! ptr) {
			return (CKR_HOST_MEMORY);
		}
		(void) memcpy(ptr, attr->pValue, attr->ulValueLen);

		*data = ptr;
	}

	return (CKR_OK);
}

CK_RV
generic_secret_unwrap(TEMPLATE *tmpl,
	CK_BYTE  *data,
	CK_ULONG  data_len,
	CK_BBOOL  fromend)
{
	CK_ATTRIBUTE  * attr	   = NULL;
	CK_ATTRIBUTE  * value_attr	= NULL;
	CK_ATTRIBUTE  * value_len_attr = NULL;
	CK_BYTE    * ptr	    = NULL;
	CK_ULONG	rc, len = 0;


	if (fromend == TRUE)
		ptr = data + data_len;
	else
		ptr = data;

	rc = template_attribute_find(tmpl, CKA_VALUE_LEN, &attr);
	if (rc) {
		len = *(CK_ULONG *)attr->pValue;
		if (len > data_len) {
			rc = CKR_ATTRIBUTE_VALUE_INVALID;
			goto error;
		}

		if (len != 0)
			data_len = len;
	}

	if (fromend == TRUE)
		ptr -= data_len;

	rc = build_attribute(CKA_VALUE, ptr, data_len, &value_attr);
	if (rc != CKR_OK) {
		goto error;
	}
	if (data_len != len) {
		rc = build_attribute(CKA_VALUE_LEN, (CK_BYTE *)&data_len,
		    sizeof (CK_ULONG), &value_len_attr);
		if (rc != CKR_OK)
			goto error;
	}

	(void) template_update_attribute(tmpl, value_attr);

	if (data_len != len)
		(void) template_update_attribute(tmpl, value_len_attr);

	return (CKR_OK);

error:
	if (value_attr)	free(value_attr);
	if (value_len_attr) free(value_len_attr);

	return (rc);
}