An electronic device using a division permission and an operating method thereof are disclosed herein. The electronic device includes a processor or a memory storing at least one instruction executable by the processor, and when the at least one instruction is executed by the processor, the processor receives a request for installing a first application on an electronic device, acquires a division permission information corresponding to a signature permission declared by the first application, applies the division permission information to a database, installs the first application. The division permission information may be used for the signature permission on a second application different from the first application.

The disclosed embodiments relate to a memory device. In one embodiment, a memory device is disclosed comprising a storage array, the storage array including a first region, the first region storing a server public key associated with a server, and a key table; and a controller configured to: receive a message from the server, the message including a command modifying the key table, validate the message using the server public key, and modify the key table based on the message.

A non-transitory computer readable medium includes instructions that, when executed by processing circuitry, are configured to cause the processing circuitry to operate in a recovery mode after initiating a startup operation, transmit a data frame to a device of an electric power delivery system during the recovery mode, the data frame indicating a request for a security association key (SAK), receive the SAK from the device in response to transmitting the data frame, and use the SAK to communicate data via a media access control security (MACsec) communication link.

The present application relates to networking technologies, communication cube technologies, and, more particularly, to methods, apparatus, techniques, and means for communication security, encryption, and privacy in network communications.

Secure communication in a geographic incident area is disclosed. Computer-implemented methods are also disclosed, one of which is for restricting access to a resource and includes generating a key and splitting it into N key parts (where N is an integer greater than two). The method also includes encrypting the N key parts. The method also includes transmitting, over a network, to a device: the N encrypted key parts; and identifying information for N secret objects expected to be visible within the area. Each of the N encrypted key parts is decryptable based on at least one video analytics-discernable object attribute for each respective secret object of the N secret objects. The method also includes allowing an additional entity to access the resource only by presentation of a complete key formed from decrypted versions of less than all of the N key parts.

Various embodiments of the present application set forth a computer-implemented method that includes generating, based on a resource file stored at an endpoint device, a credential data packet for authenticating with a first application executing in a first network, where the resource file includes a set of encryption keys associated with a plurality of applications including the first application, and where the credential data packet is encrypted with a device key signed by the endpoint device, and the credential data packet is signed by an endpoint device management (EDM) key extracted from the set of encryptions keys included in the resource file, sending, by the endpoint device, the credential data packet to the first application via a trusted communication channel, and receiving, by the endpoint device and in response to the credential data packet, an authorization packet from the first application via the trusted communication channel.

An example process includes breaking content into multiple fragments; and transmitting at least two of the multiple fragments over different physical channels in order to isolate the at least two fragments during transmission. The example process may include generating session keys; encrypting at least some of the fragments using different session keys; and associating, with each fragment, a session key used to encrypt a different fragment to produce fragment/session key pairs.

A device management service of a provider network maintain a device repository that is accessible to a remote managed network. The device management service assigns different service credentials for different edge devices indicated by the device repository. For a particular edge device, the device management service provides, based on the service credentials assigned for the edge device, secure transmission of a message between the device management service and a network manager of the managed network. The network manager of the managed network provides secure transmission of the message between the network manager and the edge device based on local credentials assigned for the edge device.

A scheme for securely transferring a patient data file to an intended recipient regardless of a transfer mode selected by a sender. Encryption system executing at the sender device is operative to encrypt each plaintext data line of a file, one by one, using a symmetric key and a starting IV that is incremented per each line, resulting in corresponding ciphertext lines added to an encrypted file. A hash is generated based on the encrypted file. An encrypted header containing the symmetric key, starting IV and the hash is generated using a public key of the recipient, which is appended to the encrypted file. The encrypted header and associated encrypted file are transmitted to the recipient in any manner. Upon receipt, the recipient decrypts the encrypted header using a private key to obtain the symmetric key, starting IV and the hash, which are used by the recipient to validate and decrypt the encrypted file on a line-by-line basis.

The present disclosure relates to generating a passphrase for an encrypted volume by at least cryptographically combing the first cryptographic key and the shared secret. Where the shared secret is split into a plurality of shares and a first number of the plurality of shares is greater than a second number of the plurality of shares and the second number of the plurality of shares is required to reconstruct the shared secret.