280 results about "Secure communication channel" patented technology

Methods of creating a secure channel over which credit card personalization data can be transmitted over the air (OTA) are provided. In particular, Generic Authentication Architecture (GAA) may be used to establish a secure communication channel between the user equipment (UE) and a personalization application server or bureau acting as a network application function (NAF) server. An user equipment, personalization application service (e.g., a NAF server), a system embodying a personalization application server and an user equipment, and a computer program product are also provided for creating a secure channel, such as via GAA, over which credit card personalization data can be transmitted OTA.

An approach for establishing secure multicast communication among multiple event service nodes is disclosed. The event service nodes, which can be distributed throughout an enterprise domain, are organized in a logical tree that mimics the logical tree arrangement of domains in a directory server system. The attributes of the event service nodes include the group session key and the private keys of the event service nodes that are members of the multicast or broadcast groups. The private keys provide unique identification values for the event service nodes, thereby facilitating distribution of such keys. Because keys as well as key version information are housed in the directory, multicast security can readily be achieved over any number of network domains across the entire enterprise. Key information is stored in, and the logical tree is supported by, a directory service. Replication of the directory accomplishes distribution of keys. Event service nodes may obtain current key information from a local copy of the replicated directory.

In one embodiment of the present invention, a messaging program at a remote computer can send a first message to a portal computer according to a one-way protocol such as HTTP. A portal program at the portal computer can receive the first message and determine if information should be sent to the portal computer. If so, the portal computer can generate a reply message that includes the information and send the reply message to remote computer on the same connection over which the first message was received. In this manner, the portal computer can send configuration control information and other information to the messaging program without requiring leased lines, dial-up connections or a VPN. Moreover, since the communication according to the one-way protocol was initiated at the remote computer, a firewall will allow the remote computer to receive the reply message.

A system and method for securing pathways to a remote application server involves a gateway or authentication server, and a mobile code authentication and encryption client available for download from the gateway or authentication server. Upon connection of a user's computing device to the authentication server over the open network, the authentication server requests authentication information, such as a password, from the user, and upon authentication of the user by the authentication server, the authentication server downloads the mobile code authentication and encryption client to the user's computing device. The authentication and encryption client then authenticates itself to authentication server, after which a secure communications channel between the user's computing device and the authentication server is opened, the secure communications channel permitting transfer of data between the user's computing device and an application server. The system and method do not require pre-installation or any certificates or other authentication and encryption software on the user's computing device, enabling the system and method to be used with thin-client and mobile computing devices, as well as with conventional computers.

The present teachings provide for a method and system for facilitating content download to one or more remote devices via an insecure communication channel. The method comprises the steps of receiving at least one shared secret from a device via an insecure communications channel, each shared secret encoded and functioning as an identifier for the device, transmitting an encrypted file, from a file server, to the device associated with the encoded shared secret, receiving the shared secret in a plaintext form a via a secure communications channel, receiving a confirmation authorizing the release of a decryption key, and sending a decryption key corresponding to the transmitted file, for which the authorization for the release of the decryption key has been received. The decryption key is encrypted using the shared secret if transmission is via the insecure channel.

A plurality of computer nodes communicates using seemingly random IP source and destination addresses and (optionally) a seemingly random discriminator field. Data packets matching criteria defined by a moving window of valid addresses are accepted for further processing, while those that do not meet the criteria are rejected. In addition to “hopping” of IP addresses and discriminator fields, hardware addresses such as Media Access Control addresses can be hopped. The hopped addresses are generated by random number generators having non-repeating sequence lengths that are easily determined a-priori, which can quickly jump ahead in sequence by an arbitrary number of random steps and which have the property that future random numbers are difficult to guess without knowing the random number generator's parameters. Synchronization techniques can be used to re-establish synchronization between sending and receiving-nodes. These techniques include a self-synchronization technique in which a sync field is transmitted as part of each packet, and a “checkpoint” scheme by which transmitting and receiving nodes can advance to a known point in their hopping schemes. A fast-packet reject technique based on the use of presence vectors is also described. A distributed transmission path embodiment incorporates randomly selected physical transmission paths.

A method for communicating passwords includes receiving at a server a challenge from a authentication server via a first secure communications channel, the challenge comprising a random password that is inactive, communicating the challenge from the server to a client computer via a second secure communications channel, receiving at the server a challenge response from the client computer via the second secure communications channel, the challenge response comprising a digital certificate and a digital signature, the digital certificate including a public key in an encrypted form, the digital signature being determined in response to the random password and the private key, and communicating the challenge response from the server to the authentication server via the first secure communications channel, wherein the random password is activated when the authentication server verifies the challenge response.

Communication is facilitated between a plurality of servers (101,102,103) and a plurality of local devices (204,206,207,208,210). An apparatus comprises a first network interface for communicating with the servers, a second network interface for communicating with the local devices, and a microcontroller having a processor, memory, a cryptographic engine for carrying out cryptographic calculations, and a tamper-resistance element configured to resist tampering with the apparatus. A plurality of programs, each comprising instructions and data, are stored in the memory. The processor is configured to, for a first local device, identify a first program which is associated with the first local device, and using the first program, provide a secure communications channel between the first local device and a first server. The processor is unable to accept commands from any other of the programs to access or change the first program, and the processor is unable to route messages over the secure communications channel that are not from or to the first local device and the first server.

A secure communication channel between an open system and a portable IC device is established. An application running on the open system desiring access to the information on the portable IC device authenticates itself to the portable IC device, proving that it is trustworthy. Once such trustworthiness is proven, the portable IC device authenticates itself to the application. Once such two-way authentication has been completed, trusted communication between the open system and the portable IC device can proceed, and private information that is maintained on the portable IC device can be unlocked and made available to the application.

The subject mater herein relates to processing of sensitive data and, more particularly, to a partitioned scheme for trusted platform module support. Various embodiments provide systems, methods, and software that instantiate one or more emulated trusted platform modules in respective sequestered processor cores. In some embodiments, a trusted platform module in instantiated in a processor core, sequestered for the trusted platform module, for each operating system or virtual machine operating on a computing device. The operating system may then communicate with the appropriate trusted platform module over a secure communication channel, such as an interpartition bridge.

One embodiment provides a system that facilitating location verification of a wireless access point and associated user devices. During operation, the access point establishes a secure communication channel with a location verification server. The access point then transmits to the location verification server an identifier of the access point, an external IP address of the access point, and location information for the access point via the secure communication channel. Next, the access point receives a packet from a user device, replaces the packet's source IP address with the access point's external IP address, and transmits the packet, thereby allowing the user device's physical location to be verified.

A system of token-based user authentication for the purpose of authorizing user access to protected resources, such as web applications, computer systems or computer controlled devices. The system utilizes a personal trusted device (PTD), which is owned and operated by one specific user, to establish secure communication channels that are subsequently used to pass user credentials to authentication service. Association of a PTD with servers controlling access to resources is performed by publishing and capturing unique tokens via sensors embedded in PTD, such as an optical camera.

An arrangement for secure user authentication includes a computer or telecommunication terminal with a smartcard and a device. The smartcard is adapted to securely store biometric information relating to at least one user and the device is adapted to detect biometric data of users. The smartcard and the device include a radio interface for communicating together and a module for exchanging biometric information between each other. In this way, tampering of the transferred biometric information is difficult. In order to increase the security, one or more of the following measures may be used: a secure communication channel between the device and the smartcard, a direct (preferably short range) communication channel between the device and the smartcard and encryption and decryption of biometric information transferred between the device and the smartcard.

A system and method provides secure authentication of a wireless communication channel for a vehicle telematics device that includes detecting a wireless access point within radio range of a telematics device, requesting authentication information for the access point through a first secure communication channel to a call center, receiving authentication information for the wireless access point from the call center through the first secure communication channel, and providing authentication information for the telematics device to the wireless access point through a second secure communication channel. A computer readable medium storing a computer program is described for implementing one or more steps of the method.

A system and method for communicating information or a cryptographic key therefore between a first party and a second party, comprising the steps of receiving, by an intermediary, an identifier of desired information and accounting information for a transaction involving the information from the first party, transmitting an identifier of the first party to the second party, and negotiating, by the intermediary, a comprehension function for obscuring at least a portion of the information communicated between the first party and the second party. The data transmission may be made secure with respect to the intermediary by providing an asymmetric key or direct key exchange for encryption of the communication between the first and second party. The data transmission may be made secure with respect to the second party by maintaining the information in encrypted format at the second party, with the decryption key held only by the intermediary, and transmitting a secure composite of the decryption key and a new encryption key to the second party for transcoding of the data record, and providing the new decryption key to the first party, so that the information transmitted to the first party can be comprehended by it. According to the present invention, asymmetric key encryption may be employed to provide the establishment of secure communications channels involving an intermediary, without making the intermediary privy to the decryption key or the message.

One embodiment described herein provides a system and method for establishing a secure communication channel between a client and a server. During operation, the client generates a service request comprising a first dynamic message, transmits the first service request to the server, which authenticates the client based on the first dynamic message, and receives a second dynamic message from the server in response to the first dynamic message. The client authenticates the server based on the second dynamic message, and negotiates, via a quantum-key-distribution process, a secret key shared between the client and the server. The client and server then establish a secure communication channel based on at least a first portion of the secret key.

A secure method and system for accessing a cache for web session is provided using web browser cookies. The cache for the web session data uses an encoded identifier, determined using for example the Keyed-Hash Message Authentication Code, based on information identifying a client. The client communication is accompanied by a cookie (persistent state object) that also includes the identifier encoded in the same manner. This encoded identifier in the received cookie is used for accessing the cached data. Where a secure communication channel is available, such as a secure socket layer (SSL connection), a second cookie which is only transmitted over SSL is used as a signature for the first cookie.

An apparatus and method are described for secure wireless communication. For example, one embodiment of an apparatus comprises: a first local wireless communication module to establish local wireless communication channels with a second local wireless communication module; a data structure managed by the first local wireless communication module, the data structure comprising a set of characteristics, each characteristic identified with an characteristic ID and having a value buffer associated therewith containing data associated with the characteristic; the first wireless communication module to form a first network socket using the data structure by defining a first characteristic for receiving data packets transmitted by the second local wireless communication module and a second characteristic for transmitting outgoing data packets to the second local wireless communication modules; wherein the incoming data packets are to be temporarily buffered in a first value buffer associated with the first characteristic and wherein the outgoing packets are to be temporarily buffered in a second value buffer associated with the second characteristic.

An approach for managing addition or deletion of nodes in a multicast or broadcast group, which avoids introducing a single point of failure at a group controller, certificate authority, or key distribution center, is disclosed. A central group controller utilizes a binary tree structure to generate and distribute session keys for the establishment of a secure multicast group among multiple user nodes. The central group controller is replicated in a plurality of other group controllers, interconnected in a network having a secure communication channel and connected to a load balancer. The secure communication channel is established using a public key exchange protocol. The load balancer distributes incoming join/leave requests to a master group controller. The master group controller processes the join or leave, generates a new group session key, and distributes the new group session key to all other group controller replicas. Each group controller is successively designated as master group controller in real time when a former master group controller crashes or relinquishes its master authority.

A system for providing a secure channel for communication comprises a client comprising a browser, a secure server and a browser component installed on the client that enables a user to establish a connection with the secure server, the browser component configured to generate a first token. The secure server is configured to generate a second token, and wherein the client is provided with access to the secure server upon verification of the first token and the second token.

A device that resides behind a firewall and receives content to be further directed towards one or more users, such as high-volume emails. The device captures the incoming content that is delivered over a secure communication channel from an external content source and creates personalized RDF or XML files for the intended recipients. The URLs associated with the files include a unique code that is generated using at least a portion of the addressing information or other parameters of the message. An RSS reader can then be employed to read the content from the RDF or XML file.