diff --git a/biometrics/common/config/Config.cpp b/biometrics/common/config/Config.cpp
new file mode 100644
index 0000000..01ae864
--- /dev/null
+++ b/biometrics/common/config/Config.cpp
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * 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.
+ */
+
+#define LOG_TAG "VirtualHalConfig"
+
+#include "config/Config.h"
+#include <android-base/logging.h>
+#include <android-base/parseint.h>
+#include "../../util/include/util/Util.h"
+
+using ::android::base::ParseInt;
+
+namespace aidl::android::hardware::biometrics {
+
+Config::Config() : mSource(Config::ConfigSourceType::SOURCE_SYSPROP) {}
+
+ConfigValue Config::parseBool(const std::string& value) {
+    OptBool res;
+    if (value == "true")
+        res.emplace(true);
+    else if (value == "false")
+        res.emplace(false);
+    else
+        LOG(ERROR) << "ERROR: invalid bool " << value;
+    return res;
+}
+
+ConfigValue Config::parseString(const std::string& value) {
+    OptString res;
+    if (!value.empty()) res.emplace(value);
+    return res;
+}
+
+ConfigValue Config::parseInt32(const std::string& value) {
+    OptInt32 res;
+    if (!value.empty()) {
+        std::int32_t val;
+        if (ParseInt(value, &val)) res.emplace(val);
+    }
+    return res;
+}
+
+ConfigValue Config::parseInt64(const std::string& value) {
+    OptInt64 res;
+    if (!value.empty()) {
+        std::int64_t val = std::strtoull(value.c_str(), nullptr, 10);
+        if (val != 0LL or (val == 0LL && value == "0")) {
+            res.emplace(val);
+        }
+    }
+    return res;
+}
+
+ConfigValue Config::parseIntVec(const std::string& value) {
+    OptIntVec res;
+    for (auto& i : Util::parseIntSequence(value)) {
+        res.push_back(i);
+    }
+    return res;
+}
+
+void Config::init() {
+    LOG(INFO) << "calling init()";
+    int len = 0;
+    Config::Data* pd = getConfigData(&len);
+    for (int i = 0; i < len; i++) {
+        LOG(INFO) << "init():" << pd->name;
+        pd->value = (this->*(pd->parser))(pd->defaultValue);
+        setConfig(pd->name, *pd);
+        ++pd;
+    }
+}
+
+bool Config::setParam(const std::string& name, const std::string& value) {
+    auto it = mMap.find(name);
+    if (it == mMap.end()) {
+        LOG(ERROR) << "ERROR: setParam unknown config name " << name;
+        return false;
+    }
+    LOG(INFO) << "setParam name=" << name << "=" << value;
+
+    it->second.value = (this->*(it->second.parser))(value);
+
+    mSource = ConfigSourceType::SOURCE_AIDL;
+
+    return true;
+}
+
+ConfigValue Config::getInternal(const std::string& name) {
+    ConfigValue res;
+
+    auto data = mMap[name];
+    switch (mSource) {
+        case ConfigSourceType::SOURCE_SYSPROP:
+            res = data.getter();
+            break;
+        case ConfigSourceType::SOURCE_AIDL:
+            res = data.value;
+            break;
+        case ConfigSourceType::SOURCE_FILE:
+            LOG(WARNING) << "Unsupported";
+            break;
+        default:
+            LOG(ERROR) << " wrong srouce type " << (int)mSource;
+            break;
+    }
+
+    return res;
+}
+
+ConfigValue Config::getDefault(const std::string& name) {
+    return mMap[name].value;
+}
+
+bool Config::setInternal(const std::string& name, const ConfigValue& val) {
+    bool res = false;
+    auto data = mMap[name];
+
+    switch (mSource) {
+        case ConfigSourceType::SOURCE_SYSPROP:
+            res = data.setter(val);
+            break;
+        case ConfigSourceType::SOURCE_AIDL:
+            data.value = val;
+            res = true;
+            break;
+        case ConfigSourceType::SOURCE_FILE:
+            LOG(WARNING) << "Unsupported";
+            break;
+        default:
+            LOG(ERROR) << " wrong srouce type " << (int)mSource;
+            break;
+    }
+
+    return res;
+}
+}  // namespace aidl::android::hardware::biometrics