usr/src/lib/pkcs11/pkcs11_softtoken/common/softDualCrypt.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <security/cryptoki.h>
  30 #include "softGlobal.h"
  31 #include "softSession.h"
  32 #include "softObject.h"
  33 #include "softOps.h"
  34
  35 CK_RV
  36 C_DigestEncryptUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
  37     CK_ULONG ulPartLen, CK_BYTE_PTR pEncryptedPart,
  38     CK_ULONG_PTR pulEncryptedPartLen)
  39 {
  40
  41         CK_RV   rv;
  42
  43         /*
  44          * All the front-end checkings will be done in the
  45          * C_EncryptUpdate and C_DigestUpdate.
  46          */
  47         rv = C_EncryptUpdate(hSession, pPart, ulPartLen,
  48             pEncryptedPart, pulEncryptedPartLen);
  49
  50         if (rv != CKR_OK)
  51                 return (rv);
  52
  53         /*
  54          * If the application just wants to know the length of output
  55          * buffer, then we do not digest the data.
  56          */
  57         if (pEncryptedPart == NULL)
  58                 return (CKR_OK);
  59
  60         return (C_DigestUpdate(hSession, pPart, ulPartLen));
  61 }
  62
  63
  64 CK_RV
  65 C_DecryptDigestUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pEncryptedPart,
  66     CK_ULONG ulEncryptedPartLen, CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
  67 {
  68
  69         CK_RV   rv;
  70
  71         /*
  72          * All the front-end checkings will be done in the
  73          * C_DecryptUpdate and C_DigestUpdate.
  74          */
  75         rv = C_DecryptUpdate(hSession, pEncryptedPart, ulEncryptedPartLen,
  76             pPart, pulPartLen);
  77
  78         if (rv != CKR_OK)
  79                 return (rv);
  80
  81         /*
  82          * If the application just wants to know the length of output
  83          * buffer, then we do not digest the data.
  84          */
  85         if (pPart == NULL)
  86                 return (CKR_OK);
  87
  88         return (C_DigestUpdate(hSession, pPart, *pulPartLen));
  89 }
  90
  91
  92 CK_RV
  93 C_SignEncryptUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pPart,
  94     CK_ULONG ulPartLen, CK_BYTE_PTR pEncryptedPart,
  95     CK_ULONG_PTR pulEncryptedPartLen)
  96 {
  97
  98         CK_RV   rv;
  99
 100         /*
 101          * All the front-end checkings will be done in the
 102          * C_EncryptUpdate and C_SignUpdate.
 103          */
 104         rv = C_EncryptUpdate(hSession, pPart, ulPartLen,
 105             pEncryptedPart, pulEncryptedPartLen);
 106
 107         if (rv != CKR_OK)
 108                 return (rv);
 109
 110         /*
 111          * If the application just wants to know the length of output
 112          * buffer, then we do not sign the data.
 113          */
 114         if (pEncryptedPart == NULL)
 115                 return (CKR_OK);
 116
 117         return (C_SignUpdate(hSession, pPart, ulPartLen));
 118 }
 119
 120
 121 CK_RV
 122 C_DecryptVerifyUpdate(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pEncryptedPart,
 123     CK_ULONG ulEncryptedPartLen, CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
 124 {
 125
 126         CK_RV   rv;
 127
 128         /*
 129          * All the front-end checkings will be done in the
 130          * C_DecryptUpdate and C_VerifyUpdate.
 131          */
 132         rv = C_DecryptUpdate(hSession, pEncryptedPart, ulEncryptedPartLen,
 133             pPart, pulPartLen);
 134
 135         if (rv != CKR_OK)
 136                 return (rv);
 137
 138         /*
 139          * If the application just wants to know the length of output
 140          * buffer, then we do not verify the data.
 141          */
 142         if (pPart == NULL)
 143                 return (CKR_OK);
 144
 145         return (C_VerifyUpdate(hSession, pPart, *pulPartLen));
 146 }