A method for sharing data encryption keys among a plurality of storage systems is disclosed. The method generates, by a first storage system, a data encryption key for encrypting data sent from the first storage system to cloud storage. The method stores the encrypted data in the cloud storage in the form of an encrypted data object. In certain embodiments, the first storage system stores an Internet Protocol (IP) address of a second storage system belonging to a same key sharing network as the first storage system. The method replicates, from the first storage system to the second storage system, the data encryption key. The second storage system retrieves the encrypted data object from the cloud storage and decrypts the encrypted data in the encrypted data object using the data encryption key received from the first storage system.

The disclosure relates to a first apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: send (500), to a second apparatus, a request comprising information indicating a list of public land mobile network identifiers identifying a first public land mobile network supported by the first apparatus, and information to derive a second public land mobile network supported by the second apparatus; and receive (502), from the second apparatus, a response comprising information indicating a list of public land mobile network identifiers identifying the second public land mobile network supported by the second apparatus.

A system and method of performing communications over a communications network that uses a communication protocol having multiple different versions, provides for backwards compatibility when devices that support a higher or more secure version of the communication protocol are added to a network having devices that only support a lower or less secure version of the communication protocol. The system and method includes a technique of negotiating and establishing security procedures to be implemented in a communication connection between two devices on the network based on initial session request messages that indicate the version of the communication protocol supported by one or both of the devices. This system and method enable higher and lower protocol version devices (i.e., devices that conform to or that use the same communication protocol but that have different versions of the protocol installed therein) to communicate with one another in the most secure manner, thereby making higher version devices added to a network backward compatible with lower version devices already within the network.

Automated processes, computing systems, computing devices and other aspects of a data processing system provide improved reliability in delivering digital media content over the Internet or a similar wide area network without sacrificing data security. Content is initially placed into a secure format (e.g., secure hypertext transport protocol (HTTPS) via transport control protocol (TCP) or the like). Prior to transmission on the network, the secure data packets are encapsulated within connectionless frames, such as user datagram protocol (UDP) frames. The client device that receives the encapsulated packets extracts the underlying secure content from the connectionless frames for further processing. The encapsulation into connectionless data frames permits client and server devices to establish effective streaming sessions while preserving the security of the underlying data.

According to an embodiment, a method receives one or more messages associated with connecting a client and a first host. At least one of the messages comprises an encrypted portion indicating the first host and at least one of the messages comprises a cleartext portion indicating a second host. The method determines first and second sets of links associated with the first and second host, respectively. The first set is determined based on monitoring a result of connecting the client and the first host. The second set is determined based on observing behavior associated with connecting to the second host. The method detects domain fronting in response to determining, based on comparing the first set of links and the second set of links, that the first host differs from the second host.

A method for enabling a secure communication with a target device over a network includes: opening an unsecured OPC UA Endpoint by an OPC UA Server that runs on the target device; connecting to the OPC UA Server over the network by an OPC UA Client running on a first device, and requesting the initial device certificate; receiving the initial device certificate by unsecured communication over the network; validating, by the first device, the initial device certificate; establishing, by the first device, a device certificate; encrypting, by the first device, at least the device certificate; sending the encrypted data over the network; decrypting, by the target device, the encrypted data using an initial device private key associated with the initial device certificate to obtain at least the device certificate; storing the device certificate on the target device; and opening a secured OPC UA Endpoint by the OPC UA Server.

Methods and systems for cross cluster replication are provided. Exemplary methods include: periodically requesting by a follower cluster history from a leader cluster, the history including at least one operation and sequence number pair, the operation having changed data in a primary shard of the leader cluster; receiving history and a first global checkpoint from the leader cluster; when a difference between the first global checkpoint and a second global checkpoint exceeds a user-defined value, concurrently making multiple additional requests for history from the leader cluster; and when a difference between the first global checkpoint and the second global checkpoint is less than a user-defined value, executing the at least one operation, the at least one operation changing data in a primary shard of the follower cluster, such that an index of the follower cluster replicates an index of the leader cluster.

The invention enables high-availability, high-scale, high security and disaster recovery for API computing, including in terms of capture of data traffic passing through proxies, routing communications between clients and servers, and load balancing and/or forwarding functions. The invention inter alia provides (i) a scalable cluster of proxies configured to route communications between clients and servers, without any single point of failure, (ii) proxy nodes configured for implementing the scalable cluster (iii) efficient methods of configuring the proxy cluster, (iv) natural resiliency of clusters and/or proxy nodes within a cluster, (v) methods for scaling of clusters, (vi) configurability of clusters to span multiple servers, multiple racks and multiple datacenters, thereby ensuring high availability and disaster recovery (vii) switching between proxies or between servers without loss of session.

Methods and apparatus are disclosed for enabling digital content from a content provider (12, 5 14) to be provided via a communication network (10) from intermediate digital content stores (16) to user-devices (18). According to one aspect, the method comprises the content provider (12, 14) providing digital content encrypted using a cryptographic encryption key to an intermediate digital content store (16), the cryptographic encryption key being a public key of a key-pair and having an associated private key. In response to a request from a user-device (18) to the content provider (12, 14) for the digital content, a cryptographic session key is shared between the content provider (12, 14) and the requesting user-device (18). The content provider (12, 14) provides to the intermediate digital content store (16) the cryptographic re-encryption key and indications of the requested digital content and of the user-device (18).

Methods and systems are directed to a content services platform. The content services platform may include a processor and a memory storing instructions that, when executed by the processor, configure the content services platform to perform a method. The method may include receiving a request to initiate a shared session from a first client, the request including a first client identifier. Based on the received request, a session identifier may be provided to the first client associated with the first client identifier. A request from a second client may be received and may be associated with the session identifier. Thus, when message data from the first client is received, the message data may be added to a queue associated with the session identifier such that the message data may be provided from the queue to the second client based on the session identifier.