Security-57031.1.35.tar.gz

[apple/security.git] / libsecurity_apple_csp / lib / castContext.cpp

diff --git a/libsecurity_apple_csp/lib/castContext.cpp b/libsecurity_apple_csp/lib/castContext.cpp
deleted file mode 100644 (file)
index 503d667..0000000
--- a/libsecurity_apple_csp/lib/castContext.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
- * 
- * The contents of this file constitute Original Code as defined in and are
- * subject to the Apple Public Source License Version 1.2 (the 'License').
- * You may not use this file except in compliance with the License. Please obtain
- * a copy of the License at http://www.apple.com/publicsource and read it before
- * using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
- * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
- * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
- * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
- * specific language governing rights and limitations under the License.
- */
-
-
-/*
- * castContext.cpp - glue between BlockCrytpor and CommonCrypto CAST128 (CAST5)
- *                              implementation
- *
- */
- 
-#include "castContext.h"
-
-CastContext::CastContext(AppleCSPSession &session) :
-    BlockCryptor(session),
-    mCastKey(NULL),
-    mInitFlag(false),
-    mRawKeySize(0)
-{
-}
-
-
-
-CastContext::~CastContext()
-{
-       deleteKey();
-}
-
-void CastContext::deleteKey()
-{
-    if (mCastKey != NULL) {
-        CCCryptorRelease(mCastKey);
-    }
-    mCastKey = NULL;
-       mInitFlag = false;
-}
-
-/* 
- * Standard CSPContext init, called from CSPFullPluginSession::init().
- * Reusable, e.g., query followed by en/decrypt.
- */
-void CastContext::init( 
-       const Context &context, 
-       bool encrypting)
-{
-       if(mInitFlag && !opStarted()) {
-               return;
-       }
-
-       CSSM_SIZE       keyLen;
-       uint8           *keyData = NULL;
-       bool            sameKeySize = false;
-       
-       /* obtain key from context */
-       symmetricKeyBits(context, session(), CSSM_ALGID_CAST, 
-               encrypting ? CSSM_KEYUSE_ENCRYPT : CSSM_KEYUSE_DECRYPT,
-               keyData, keyLen);
-       if((keyLen < kCCKeySizeMinCAST) || (keyLen > kCCKeySizeMaxCAST)) {
-               CssmError::throwMe(CSSMERR_CSP_INVALID_ATTR_KEY);
-       }
-       
-       /*
-        * Delete existing key if key size changed
-        */
-       if(mRawKeySize == keyLen) {
-               sameKeySize = true;
-       }
-       else {
-               deleteKey();
-       }
-
-       /* init key only if key size or key bits have changed */
-       if(!sameKeySize || memcmp(mRawKey, keyData, mRawKeySize)) {
-        (void) CCCryptorCreateWithMode(0, kCCModeECB, kCCAlgorithmCAST, ccDefaultPadding, NULL, keyData, keyLen, NULL, 0, 0, 0, &mCastKey);
-       
-               /* save this raw key data */
-               memmove(mRawKey, keyData, keyLen); 
-               mRawKeySize = (uint32)keyLen;
-       }
-       
-       /* Finally, have BlockCryptor do its setup */
-       setup(kCCBlockSizeCAST, context);
-       mInitFlag = true;
-}      
-
-/*
- * Functions called by BlockCryptor
- */
-void CastContext::encryptBlock(
-       const void              *plainText,                     // length implied (one block)
-       size_t                  plainTextLen,
-       void                    *cipherText,    
-       size_t                  &cipherTextLen,         // in/out, throws on overflow
-       bool                    final)                          // ignored
-{
-       if(plainTextLen != kCCBlockSizeCAST) {
-               CssmError::throwMe(CSSMERR_CSP_INPUT_LENGTH_ERROR);
-       }
-       if(cipherTextLen < kCCBlockSizeCAST) {
-               CssmError::throwMe(CSSMERR_CSP_OUTPUT_LENGTH_ERROR);
-       }
-    (void) CCCryptorEncryptDataBlock(mCastKey, NULL, plainText, kCCBlockSizeCAST, cipherText);
-
-       cipherTextLen = kCCBlockSizeCAST;
-}
-
-void CastContext::decryptBlock(
-       const void              *cipherText,            // length implied (one block)
-       size_t                  cipherTextLen,
-       void                    *plainText,     
-       size_t                  &plainTextLen,          // in/out, throws on overflow
-       bool                    final)                          // ignored
-{
-       if(plainTextLen < kCCBlockSizeCAST) {
-               CssmError::throwMe(CSSMERR_CSP_OUTPUT_LENGTH_ERROR);
-       }
-    (void) CCCryptorDecryptDataBlock(mCastKey, NULL, cipherText, kCCBlockSizeCAST, plainText);
-
-       plainTextLen = kCCBlockSizeCAST;
-}