A method of controlling communication includes obtaining a result of comparison between a first feature value of first streaming data and a second feature value of second streaming data and transmitting a first switching signal to a first terminal and a second terminal in the case where the first feature value and the second feature value have a first relation according to the comparison result. The first feature value is of a first streaming data transmitted from the first terminal using the first communication method type. The second feature value is of a second streaming data transmitted from the second terminal using the first communication method type. The first switching signal causes the first terminal and the second terminal to switch from using the first communication method type to using a second communication method type to transmit streaming data between the first terminal and the second terminal.

A method of controlling communication includes obtaining a result of comparison between a first feature value of first streaming data and a second feature value of second streaming data and transmitting a first switching signal to a first terminal and a second terminal in the case where the first feature value and the second feature value have a first relation according to the comparison result. The first feature value is of a first streaming data transmitted from the first terminal using the first communication method type. The second feature value is of a second streaming data transmitted from the second terminal using the first communication method type. The first switching signal causes the first terminal and the second terminal to switch from using the first communication method type to using a second communication method type to transmit streaming data between the first terminal and the second terminal.

A processing service of a provider network may protect media content from being tampered with when it is transmitted from the provider network/transcoder to untrusted networks (e.g., third-party networks/CDNs) and to a media player. The processing service (e.g., the transcoder) generates a public and a private key. The service uses the private key to digitally sign content portions (e.g., video frames) before distribution to untrusted CDNs. The provider network creates a manifest that includes the public key. To play the media content, the media player obtains a manifest that includes the public key (via a secure/trusted connection with the provider network). The media player may then obtain the media content from an untrusted edge server/CDN and validate it using the public key that was separately obtained from the manifest (to verify the content was not tampered with).

Systems and methods are provided for sending and receiving remote procedure calls (RPCs). Based on a message in a first RPC, a second set of RPCs are created by one or more computing devices, where each of the second set of RPCs includes a portion of the message in the first RPC. The message in the first RPC is replaced with a reference to each RPC of the second set of RPCs. The one or more computing devices send the first RPC with the references, and also send the second set of RPCs.

In a method of operating network-based storage devices, a first storage device having a first local key among a plurality of storage devices is set as a first main storage device. The storage devices are connected to each other through a network. A volume of at least a part of the plurality of storage devices is set and managed by the first storage device based on a first control signal received from an external host device. A second local key is received by the first storage device from a second storage device having the second local key among the plurality of storage devices. The first local key and the second local key are transmitted by the first storage device to the external host device.

In a method of operating network-based storage devices, a first storage device having a first local key among a plurality of storage devices is set as a first main storage device. The storage devices are connected to each other through a network. A volume of at least a part of the plurality of storage devices is set and managed by the first storage device based on a first control signal received from an external host device. A second local key is received by the first storage device from a second storage device having the second local key among the plurality of storage devices. The first local key and the second local key are transmitted by the first storage device to the external host device.

A method of propagating data packets in a network of nodes is disclosed. The method, implemented at one of the nodes, includes: collecting a set of first data packets during a first time period, the set including at least one data packet received from one or more first nodes in the network; obtaining a plurality of encoded data packets, each one of the plurality of encoded data packets being generated by combining two or more first data packets of the set using network coding; determining a mapping of the plurality of encoded data packets and the first data packets of the set to one or more neighbouring nodes connected to the node; and transmitting the plurality of encoded data packets and the first data packets of the set to the one or more neighbouring nodes according to the determined mapping.

A method of controlling and coordinating of processing steps in a distributed system can be implemented by an initiator node of a cyclically-ordered set of nodes participating in a blockchain network (e.g., Bitcoin blockchain). The method includes generating a private key and cryptographic shares thereof for the nodes of the set and distributing them. A locking value is determined based on the shares and a transaction is arranged to transmit control of a resource responsive to supply of a corresponding unlocking value. A circuit of transactions amongst the nodes each arranged to transmit control of a resource responsive to supply of an unlocking value corresponding to a locking value determined based on the share distributed to a first node of one of two adjacent nodes and a value received from another node immediately previous to it is prepared. The initiator node may belong to a cyclically-ordered set of initiator nodes.

Various embodiments disclose a method that includes sending, by a first node to a plurality of neighbor nodes, a query associated with a dataset, wherein the dataset includes multiple blocks; receiving, at the first node from a set of the plurality of neighbor nodes, one or more responses to the query; based on a first quality ranking of individual nodes in the set, selecting, by the first node, a second node from the set; and sending, by the first node, a first request to the second node for at least one block of the multiple blocks.

Systems and methods are described for performing peer-to-peer software distribution in a Unified Endpoint Management environment. In an example, an unenrolled user device can request enrollment from an enrollment server. The enrollment server can send a list of resources to the unenrolled user device that the unenrolled user device needs based on a group that the unenrolled user device is assigned to. The unenrolled user device can send an identifier of the group to a notification server, and the notification server can respond with an ordered list of enrolled user devices that the unenrolled user device can retrieve the resources from. The unenrolled user device can request the resources from the enrolled user devices on the list until the unenrolled user device receives all the resources from the resource list. The unenrolled user device can then install the resources to complete enrollment.