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Added macLongKdf support

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This commit is contained in:
Valere 2019-04-04 09:00:08 +02:00
parent c9369a4383
commit 16a28f297c
4 changed files with 102 additions and 0 deletions
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11
android/olm-sdk/src/androidTest/java/org/matrix/olm/OlmSasTest.java
View file

@ -83,6 +83,17 @@ public class OlmSasTest {
Log.e(OlmSasTest.class.getSimpleName(), "#### Bob Mac is " + new String(bobMac, "UTF-8"));
byte[] aliceLongKdfMac = aliceSas.calculateMacLongKdf("Hello world!", "SAS");
byte[] bobLongKdfMac = bobSas.calculateMacLongKdf("Hello world!", "SAS");
assertTrue(aliceLongKdfMac.length > 0 && bobLongKdfMac.length > 0);
assertEquals(aliceLongKdfMac.length, bobLongKdfMac.length);
assertArrayEquals(aliceLongKdfMac, bobLongKdfMac);
Log.e(OlmSasTest.class.getSimpleName(), "#### Alice lkdf Mac is " + new String(aliceLongKdfMac, "UTF-8"));
Log.e(OlmSasTest.class.getSimpleName(), "#### Bob lkdf Mac is " + new String(bobLongKdfMac, "UTF-8"));
} catch (Exception e) {
assertTrue("OlmSas init failed " + e.getMessage(), false);
e.printStackTrace();

10
android/olm-sdk/src/main/java/org/matrix/olm/OlmSAS.java
View file

@ -103,6 +103,14 @@ public class OlmSAS {
}
}
public byte[] calculateMacLongKdf(String message, String info) throws OlmException {
try {
return calculateMacLongKdfJni(message.getBytes("UTF-8"), info.getBytes("UTF-8"));
} catch (UnsupportedEncodingException e) {
throw new OlmException(OlmException.EXCEPTION_CODE_SAS_ERROR, e.getMessage());
}
}
/**
* Create an OLM session in native side.<br>
* Do not forget to call {@link #releaseSASJni()} when JAVA side is done.
@ -127,6 +135,8 @@ public class OlmSAS {
private native byte[] calculateMacJni(byte[] message, byte[] info);
private native byte[] calculateMacLongKdfJni(byte[] message, byte[] info);
/**
* Release native session and invalid its JAVA reference counter part.<br>
* Public API for {@link #releaseSASJni()}.

80
android/olm-sdk/src/main/jni/olm_sas.cpp
View file

@ -308,3 +308,83 @@ JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacJni)(JNIEnv *env, jobject thiz
return returnValue;
}
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacLongKdfJni)(JNIEnv *env, jobject thiz,jbyteArray messageBuffer,jbyteArray infoBuffer) {
LOGD("## calculateMacLongKdfJni(): IN");
const char* errorMessage = NULL;
jbyteArray returnValue = 0;
OlmSAS* sasPtr = getOlmSasInstanceId(env, thiz);
jbyte *messagePtr = NULL;
jboolean messageWasCopied = JNI_FALSE;
jbyte *infoPtr = NULL;
jboolean infoWasCopied = JNI_FALSE;
if (!sasPtr)
{
LOGE("## calculateMacLongKdfJni(): failure - invalid SAS ptr=NULL");
errorMessage = "invalid SAS ptr=NULL";
} else if(!messageBuffer) {
LOGE("## calculateMacLongKdfJni(): failure - invalid message");
errorMessage = "invalid info";
}
else if (!(messagePtr = env->GetByteArrayElements(messageBuffer, &messageWasCopied)))
{
LOGE(" ## calculateMacLongKdfJni(): failure - message JNI allocation OOM");
errorMessage = "message JNI allocation OOM";
}
else if (!(infoPtr = env->GetByteArrayElements(infoBuffer, &infoWasCopied)))
{
LOGE(" ## calculateMacLongKdfJni(): failure - info JNI allocation OOM");
errorMessage = "info JNI allocation OOM";
} else {
size_t infoLength = (size_t)env->GetArrayLength(infoBuffer);
size_t messageLength = (size_t)env->GetArrayLength(messageBuffer);
size_t macLength = olm_sas_mac_length(sasPtr);
void *macPtr = malloc(macLength*sizeof(uint8_t));
size_t result = olm_sas_calculate_mac_long_kdf(sasPtr,messagePtr,messageLength,infoPtr,infoLength,macPtr,macLength);
if (result == olm_error())
{
errorMessage = (const char *)olm_sas_last_error(sasPtr);
LOGE("## calculateMacLongKdfJni(): failure - error calculating SAS mac Msg=%s", errorMessage);
}
else
{
returnValue = env->NewByteArray(macLength);
env->SetByteArrayRegion(returnValue, 0 , macLength, (jbyte*)macPtr);
}
if (macPtr) {
free(macPtr);
}
}
// free alloc
if (infoPtr)
{
if (infoWasCopied)
{
memset(infoPtr, 0, (size_t)env->GetArrayLength(infoBuffer));
}
env->ReleaseByteArrayElements(infoBuffer, infoPtr, JNI_ABORT);
}
if (messagePtr)
{
if (messageWasCopied)
{
memset(messagePtr, 0, (size_t)env->GetArrayLength(messageBuffer));
}
env->ReleaseByteArrayElements(messageBuffer, messagePtr, JNI_ABORT);
}
if (errorMessage)
{
env->ThrowNew(env->FindClass("java/lang/Exception"), errorMessage);
}
return returnValue;
}

1
android/olm-sdk/src/main/jni/olm_sas.h
View file

@ -32,6 +32,7 @@ JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(getPubKeyJni)(JNIEnv *env, jobject thiz);
JNIEXPORT void OLM_SAS_FUNC_DEF(setTheirPubKey)(JNIEnv *env, jobject thiz,jbyteArray pubKey);
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(generateShortCodeJni)(JNIEnv *env, jobject thiz, jbyteArray infoStringBytes, jint byteNb);
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacJni)(JNIEnv *env, jobject thiz, jbyteArray messageBuffer, jbyteArray infoBuffer);
JNIEXPORT jbyteArray OLM_SAS_FUNC_DEF(calculateMacLongKdfJni)(JNIEnv *env, jobject thiz, jbyteArray messageBuffer, jbyteArray infoBuffer);
#ifdef __cplusplus
}