diff --git a/include/password.hpp b/include/password.hpp
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--- /dev/null
+++ b/include/password.hpp
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+/*
+// Copyright (c) 2020 Intel Corporation
+//
+// 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.
+*/
+#pragma once
+#include "config.h"
+
+#include <openssl/evp.h>
+#include <openssl/hmac.h>
+#include <openssl/sha.h>
+
+#include <nlohmann/json.hpp>
+#include <sdbusplus/asio/object_server.hpp>
+#include <sdbusplus/server.hpp>
+#include <xyz/openbmc_project/BIOSConfig/Password/server.hpp>
+
+#include <filesystem>
+#include <string>
+
+namespace bios_config_pwd
+{
+
+static constexpr auto servicePwd = "xyz.openbmc_project.BIOSConfigPassword";
+static constexpr auto objectPathPwd =
+    "/xyz/openbmc_project/bios_config/password";
+constexpr auto biosPasswordFile = "passwordData";
+constexpr auto biosSeedFile = "seedData";
+
+using Base = sdbusplus::xyz::openbmc_project::BIOSConfig::server::Password;
+namespace fs = std::filesystem;
+
+/** @class Password
+ *
+ *  @brief Implements the BIOS Password
+ */
+class Password : public Base
+{
+  public:
+    Password() = delete;
+    ~Password() = default;
+    Password(const Password&) = delete;
+    Password& operator=(const Password&) = delete;
+    Password(Password&&) = delete;
+    Password& operator=(Password&&) = delete;
+
+    /** @brief Constructs Password object.
+     *
+     *  @param[in] objectServer  - object server
+     *  @param[in] systemBus - bus connection
+     */
+    Password(sdbusplus::asio::object_server& objectServer,
+             std::shared_ptr<sdbusplus::asio::connection>& systemBus);
+
+    /** @brief Set the BIOS attribute with a new value, the new value is added
+     *         to the PendingAttribute.
+     *
+     *  @param[in] userName - User name - user / admin.
+     *  @param[in] currentPassword - Current user/ admin Password.
+     *  @param[in] newPassword - New user/ admin Password.
+     */
+    void changePassword(std::string userName, std::string currentPassword,
+                        std::string newPassword) override;
+
+  private:
+    void verifyPassword(std::string userName, std::string currentPassword,
+                        std::string newPassword);
+    bool isMatch(const std::string expected, const std::string seed,
+                 const std::string rawData, const std::string algo);
+    sdbusplus::asio::object_server& objServer;
+    std::shared_ptr<sdbusplus::asio::connection>& systemBus;
+    std::filesystem::path passwordFile;
+    std::filesystem::path seedFile;
+    std::string mNewPassword;
+};
+
+} // namespace bios_config_pwd