Secure File Transfer Protocol

Abstract: Systems and methods for facilitating a user transaction are provided. A communication device may select an access device from a plurality of access devices. The communication device may establish a secure connection to the access device using a secure file transfer protocol supported by a wireless data protocol. The communication device may transmit a payment credential from the communication device to the access device using the secure file transfer protocol. The access device may broadcast a communication indicating connection readiness using the wireless data protocol. In response to receiving a request from the communication device, the access device may establish a secure connection with the communication device using the secure file transfer protocol. The access device may receive a payment credential via the secure file transfer protocol.

Abstract: Due to users’ network flow requirement and usage amount nowadays, TCP/IP networks may face various problems. For one, users of video services may access simultaneously the same content, which leads to the host incurring extra costs. Second, although nearby nodes may have the file that a user wants to access, the user cannot directly verify the file itself. This issue will lead the user to connect to a remote host rather than the nearby nodes and causes the network traffic to greatly increase. Therefore, the named data network (NDN), which is based on data itself, was brought about to deal with the aforementioned problems. In NDN, all users can access a file from the nearby nodes, and they can directly verify the file themselves rather than the specific host who holds the file. However, NDN still has no complete standard and secure file transfer protocol to support the ciphertext transmission and the problem of the unknown potential receivers. The straightforward solution is that a sender uses the receiver's public key to encrypt a file before she/he sends the file to NDN nodes. However, it will limit the behavior of users and incur significant storage costs of NDN nodes. This paper presents a complete secure file transfer protocol, which combines the data re-encryption, satisfies the requirement of secure ciphertext transmission, solves the problem of the unknown potential receivers, and saves the significant storage costs of NDN nodes. The proposed protocol is the first one that achieves data confidentiality and solves the problem of the unknown potential receivers in NDN. Finally, we also provide formal security models and proofs for the proposed FTP-NDN.

Abstract: The invention discloses a method for realizing seamless communication between a master scheduling station and a substation of a power grid. The method comprises: a model configuration step of establishing an international electrotechnical commission (IEC)-61850-standard-format-based whole-station unified configuration model file comprising a primary equipment model and a second equipment model in the substation; a secure file transfer protocol (sFTP) file transmission step of uploading data comprising the whole-station unified configuration model file to the master scheduling station through sFTP connection by using a telecontrol workstation in the substation; a model conversion step of converting the whole-station unified configuration model file into an IEC-61970-standard-format-based common information model comprising communication information; and a seamless communication step of establishing seamless communication connection between the master scheduling station and the substation. The invention also discloses a corresponding system for realizing the seamless communication between the master scheduling station and substation of the power grid. By the method and the system, the seamless communication between the digital substation and the master scheduling station can be realized under the condition of avoiding influence on the conventional substation and the master scheduling station as much as possible.

Abstract: A method, system, and computer program product for providing automatic reconfigurable secure File Transfer Protocol (sFTP) software for sFTP transfers for clients is provided. In one embodiment, a property file is created, wherein the property file contains configuration information, such as, for example, destination host, port, user ID, password, pickup directory, destination directory, and encryption public key, for each client. Software component parameters used for sending and receiving files via a FTP and for encrypting the files prior to sending the files and decrypting the files after receiving the files are configured based on the configuration information in the property file. The property file is monitored for changes and the software components for a client are automatically reconfigured if the property file changes to reflect the new configuration information.