CrAzYpass implementation (#234)

app/src/main/cpp/monerujo.cpp

@@ -695,6 +695,23 @@ Java_com_m2049r_xmrwallet_model_Wallet_isSynchronized(JNIEnv *env, jobject insta
     return static_cast<jboolean>(wallet->synchronized());
 }
 
+//void cn_slow_hash(const void *data, size_t length, char *hash); // from crypto/hash-ops.h
+JNIEXPORT jbyteArray JNICALL
+Java_com_m2049r_xmrwallet_util_KeyStoreHelper_cnSlowHash(JNIEnv *env, jobject clazz,
+                                               jbyteArray data) {
+
+    jbyte *buffer = env->GetByteArrayElements(data, NULL);
+    jsize size = env->GetArrayLength(data);
+    char hash[HASH_SIZE];
+    cn_slow_hash(buffer, (size_t) size, hash);
+
+    env->ReleaseByteArrayElements(data, buffer, JNI_ABORT); // do not update java byte[]
+
+    jbyteArray result = env->NewByteArray(HASH_SIZE);
+    env->SetByteArrayRegion(result, 0, HASH_SIZE, (jbyte *) hash);
+    return result;
+}
+
 JNIEXPORT jstring JNICALL
 Java_com_m2049r_xmrwallet_model_Wallet_getDisplayAmount(JNIEnv *env, jobject clazz,
                                                         jlong amount) {
@@ -1083,7 +1100,8 @@ Java_com_m2049r_xmrwallet_model_PendingTransaction_getTxCount(JNIEnv *env, jobje
 //static void error(const std::string &category, const std::string &str);
 JNIEXPORT void JNICALL
 Java_com_m2049r_xmrwallet_model_WalletManager_initLogger(JNIEnv *env, jobject instance,
-                                                   jstring argv0, jstring default_log_base_name) {
+                                                         jstring argv0,
+                                                         jstring default_log_base_name) {
 
     const char *_argv0 = env->GetStringUTFChars(argv0, NULL);
     const char *_default_log_base_name = env->GetStringUTFChars(default_log_base_name, NULL);
@@ -1109,7 +1127,7 @@ Java_com_m2049r_xmrwallet_model_WalletManager_logDebug(JNIEnv *env, jobject inst
 
 JNIEXPORT void JNICALL
 Java_com_m2049r_xmrwallet_model_WalletManager_logInfo(JNIEnv *env, jobject instance,
-                                                       jstring category, jstring message) {
+                                                      jstring category, jstring message) {
 
     const char *_category = env->GetStringUTFChars(category, NULL);
     const char *_message = env->GetStringUTFChars(message, NULL);
@@ -1122,7 +1140,7 @@ Java_com_m2049r_xmrwallet_model_WalletManager_logInfo(JNIEnv *env, jobject insta
 
 JNIEXPORT void JNICALL
 Java_com_m2049r_xmrwallet_model_WalletManager_logWarning(JNIEnv *env, jobject instance,
-                                                       jstring category, jstring message) {
+                                                         jstring category, jstring message) {
 
     const char *_category = env->GetStringUTFChars(category, NULL);
     const char *_message = env->GetStringUTFChars(message, NULL);
@@ -1149,11 +1167,10 @@ Java_com_m2049r_xmrwallet_model_WalletManager_logError(JNIEnv *env, jobject inst
 JNIEXPORT void JNICALL
 Java_com_m2049r_xmrwallet_model_WalletManager_setLogLevel(JNIEnv *env, jobject instance,
                                                           jint level) {
-            Bitmonero::WalletManagerFactory::setLogLevel(level);
+    Bitmonero::WalletManagerFactory::setLogLevel(level);
 }
 
 
-
 #ifdef __cplusplus
 }
 #endif

app/src/main/cpp/monerujo.h

@@ -18,6 +18,7 @@
 #define XMRWALLET_WALLET_LIB_H
 
 #include <jni.h>
+
 /*
 #include <android/log.h>
 
@@ -27,13 +28,13 @@
 #define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
 */
 
-jfieldID getHandleField(JNIEnv *env, jobject obj, const char* fieldName = "handle") {
+jfieldID getHandleField(JNIEnv *env, jobject obj, const char *fieldName = "handle") {
     jclass c = env->GetObjectClass(obj);
     return env->GetFieldID(c, fieldName, "J"); // of type long
 }
 
-template <typename T>
-T *getHandle(JNIEnv *env, jobject obj, const char* fieldName = "handle") {
+template<typename T>
+T *getHandle(JNIEnv *env, jobject obj, const char *fieldName = "handle") {
     jlong handle = env->GetLongField(obj, getHandleField(env, obj, fieldName));
     return reinterpret_cast<T *>(handle);
 }
@@ -42,10 +43,27 @@ void setHandleFromLong(JNIEnv *env, jobject obj, jlong handle) {
     env->SetLongField(obj, getHandleField(env, obj), handle);
 }
 
-template <typename T>
+template<typename T>
 void setHandle(JNIEnv *env, jobject obj, T *t) {
     jlong handle = reinterpret_cast<jlong>(t);
     setHandleFromLong(env, obj, handle);
 }
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+// from monero-core crypto/hash-ops.h - avoid #including monero code here
+enum {
+    HASH_SIZE = 32,
+    HASH_DATA_AREA = 136
+};
+
+void cn_slow_hash(const void *data, size_t length, char *hash);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif //XMRWALLET_WALLET_LIB_H