--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/satsa/crypto/src/messagedigestimpljni.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,204 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  JNI Layer corresponding to MessageDigestImpl.java
+*
+*/
+
+
+#include "javajniutils.h"
+#include "com_nokia_mj_impl_security_MessageDigestImpl.h"
+#include <stdio.h>
+#include <openssl/evp.h>
+#include "stsconstants.h"
+#include <hash.h>
+#include "logger.h"
+
+using namespace java::satsa;
+
+
+// JNI function.
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_security_MessageDigestImpl__1reset
+(JNIEnv*, jclass, jint aHandle)
+{
+    const EVP_MD* md = NULL;
+    int retVal;
+
+    EVP_MD_CTX* mdctx = reinterpret_cast< EVP_MD_CTX* >(aHandle);
+
+    md = EVP_MD_CTX_md(mdctx);
+    if (md == NULL)
+    {
+        return KSTSErrNoMemory;
+    }
+    EVP_MD_CTX_init(mdctx);
+    retVal = EVP_DigestInit_ex(mdctx, md, NULL);
+    if (retVal == 0)
+    {
+        // Set error code to handle variable which is returned to Java
+        return KSTSErrNoMemory;
+    }
+
+    return 0;
+}
+
+
+// JNI function.
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_security_MessageDigestImpl__1digest
+(JNIEnv* aJni, jclass, jint aHandle,
+ jbyteArray aBuf, jint aOffset, jint aLength)
+{
+    EVP_MD_CTX* mdctx = reinterpret_cast< EVP_MD_CTX* >(aHandle);
+    const EVP_MD* md = NULL;
+    unsigned int retVal;
+    unsigned int err;
+    unsigned char* buf = new unsigned char[EVP_MAX_MD_SIZE];
+    err = EVP_DigestFinal_ex(mdctx, buf, &retVal);
+    if (err == 1)
+    {
+        //digest successful
+        if (aLength < retVal)
+        {
+            return KSTSErrNoMemory;
+        }
+        else
+        {
+            // set the output buffer with hashed data
+            aJni->SetByteArrayRegion(aBuf,aOffset,retVal,(signed char*)buf);
+
+            // reset the digest as per the spec
+            md = EVP_MD_CTX_md(mdctx);
+            if (md == NULL)
+            {
+                return KSTSErrNoMemory;
+            }
+            EVP_MD_CTX_init(mdctx);
+            err = EVP_DigestInit_ex(mdctx, md, NULL);
+            if (err == 0)
+            {
+                // Set error code to handle variable which is returned to Java
+                return KSTSErrNoMemory;
+            }
+            else
+            {
+                return retVal;
+            }
+        }
+    }
+    else
+    {
+        return KSTSErrNoMemory;
+    }
+}
+
+
+// JNI function.
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_security_MessageDigestImpl__1update
+(JNIEnv* aJni, jclass, jint aHandle,
+ jbyteArray aBuf, jint aOffset, jint aLength)
+{
+    int err;
+    EVP_MD_CTX* mdctx = reinterpret_cast< EVP_MD_CTX* >(aHandle);
+    unsigned char* buf = new unsigned char[aLength];
+    aJni->GetByteArrayRegion(aBuf,aOffset,aLength,(signed char *)buf);
+    err = EVP_DigestUpdate(mdctx, buf, aLength);
+    if (0 == err)
+    {
+        err = KSTSErrNoMemory;
+    }
+    return err;
+}
+
+
+// JNI function.
+JNIEXPORT jint JNICALL Java_com_nokia_mj_impl_security_MessageDigestImpl__1create
+(JNIEnv* aJni, jclass,
+ jstring aAlgorithm)
+{
+    int retVal;
+    EVP_MD_CTX *mdctx = new EVP_MD_CTX;
+    const EVP_MD *md;
+
+    OpenSSL_add_all_digests();
+
+    // Set the transformation string contents to a wstring.
+    std::wstring algo;
+    try
+    {
+        algo = java::util::JniUtils::jstringToWstring(aJni, aAlgorithm);
+    }
+    catch (...)
+    {
+        // do nothing
+    }
+    TInt handle = KSTSErrNoMemory;
+
+    // Create digest object according to aAlgorithm
+    if (algo == L"SHA-1")
+    {
+        md = EVP_sha1();
+    }
+    else if (algo == L"MD2")
+    {
+        md = EVP_md2();
+    }
+    else if (algo == L"MD5")
+    {
+        md = EVP_md5();
+    }
+    else
+    {
+        // Algorithm was not found
+        handle = KSTSErrDigest;
+        return handle;
+    }
+
+    EVP_MD_CTX_init(mdctx);
+    retVal = EVP_DigestInit_ex(mdctx, md, NULL);
+    if (0 == retVal)
+    {
+        // Set error code to handle variable which is returned to Java
+        handle = KSTSErrNoMemory;
+        return handle;
+    }
+
+    // return handle to new MessageDigest object or error code
+    handle = reinterpret_cast<jint>(mdctx);
+    return handle;
+}
+
+
+// JNI function dispose.
+JNIEXPORT void
+JNICALL Java_com_nokia_mj_impl_security_MessageDigestImpl__1dispose
+(JNIEnv* /*aJni*/,
+ jclass,
+ jint aHandle)
+{
+
+    //Get the digest object from aHandle
+    EVP_MD_CTX* mdctx = reinterpret_cast< EVP_MD_CTX* >(aHandle);
+
+    if (mdctx != NULL)
+    {
+        // Cleanup the native handle.
+        delete mdctx;
+        mdctx = 0;
+    }
+
+}//end dispose
+
+//end of file
+
+
+