1 files changed, 62 insertions, 0 deletions
diff --git a/ext/ipp/sources/ippcp/pcprsa_sizeof_pubkey.h b/ext/ipp/sources/ippcp/pcprsa_sizeof_pubkey.h
new file mode 100644
index 0000000..e0fe1ad
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+++ b/ext/ipp/sources/ippcp/pcprsa_sizeof_pubkey.h
@@ -0,0 +1,62 @@
+/*******************************************************************************
+* Copyright 2013-2018 Intel Corporation
+* All Rights Reserved.
+*
+* If this  software was obtained  under the  Intel Simplified  Software License,
+* the following terms apply:
+*
+* The source code,  information  and material  ("Material") contained  herein is
+* owned by Intel Corporation or its  suppliers or licensors,  and  title to such
+* Material remains with Intel  Corporation or its  suppliers or  licensors.  The
+* Material  contains  proprietary  information  of  Intel or  its suppliers  and
+* licensors.  The Material is protected by  worldwide copyright  laws and treaty
+* provisions.  No part  of  the  Material   may  be  used,  copied,  reproduced,
+* modified, published,  uploaded, posted, transmitted,  distributed or disclosed
+* in any way without Intel's prior express written permission.  No license under
+* any patent,  copyright or other  intellectual property rights  in the Material
+* is granted to  or  conferred  upon  you,  either   expressly,  by implication,
+* inducement,  estoppel  or  otherwise.  Any  license   under such  intellectual
+* property rights must be express and approved by Intel in writing.
+*
+* Unless otherwise agreed by Intel in writing,  you may not remove or alter this
+* notice or  any  other  notice   embedded  in  Materials  by  Intel  or Intel's
+* suppliers or licensors in any way.
+*
+*
+* If this  software  was obtained  under the  Apache License,  Version  2.0 (the
+* "License"), the following terms apply:
+*
+* You may  not use this  file except  in compliance  with  the License.  You may
+* obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+*
+*
+* Unless  required  by   applicable  law  or  agreed  to  in  writing,  software
+* distributed under the License  is distributed  on an  "AS IS"  BASIS,  WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+* See the   License  for the   specific  language   governing   permissions  and
+* limitations under the License.
+*******************************************************************************/
+
+/*
+//
+//  Purpose:
+//     Cryptography Primitive.
+//     RSA Functions
+//
+*/
+
+/* compute size of RSA public key context */
+static int cpSizeof_RSA_publicKey(int rsaModulusBitSize, int publicExpBitSize)
+{
+   int pubExpLen = BITS_BNU_CHUNK(publicExpBitSize);
+   int modulusLen32 = BITS2WORD32_SIZE(rsaModulusBitSize);
+   int montNsize;
+   rsaMontExpGetSize(modulusLen32, &montNsize);
+
+   return sizeof(IppsRSAPublicKeyState)
+        + pubExpLen*sizeof(BNU_CHUNK_T)
+        + sizeof(BNU_CHUNK_T)-1
+        + montNsize
+        + (RSA_PUBLIC_KEY_ALIGNMENT-1);
+}