An encryption and decryption system includes a first electronic device and a second electronic device. The first electronic device includes a memory device and an encryption device. The memory device can store plaintext data. The encryption device can generate first pseudo data and first pseudo key. The encryption device encrypts first pseudo data by the first pseudo key and encrypt the plaintext data by a key, and outputs the ciphertext data generated by encrypting plaintext data by the key. The second electronic device includes a decryption device for generating second pseudo data and the second pseudo key. The decryption device decrypts the second pseudo data by the second pseudo key, and decrypts the ciphertext data by the key, and outputs the plaintext data, which is generated by decrypting the ciphertext data by the key.

According to one embodiment, techniques are provided to enable secure communication among devices in a mesh network using a group temporal key. An authenticator device associated with a mesh network stores a pairwise master key for each of a plurality of devices in a mesh network upon authentication of the respective devices. Using the pairwise master key, the authenticator device initiates a handshake procedure with a particular device in the mesh network to mutually derive a pairwise temporal key from the pairwise master key. The authenticator device encrypts and signs a group temporal key using the pairwise temporal key for the particular device and sends the group temporal key encrypted and signed with the pairwise temporal key to the particular device.

A method, apparatus, and system for provisioning a device onto a network using a non-secure communication channel between the device and a provisioner is described. The provisioner receives a timestamp-based on-time password (TOTP), and a universal resource identifier (URI) from the device and provides the TOTP and an out-of-band (OOB) UUID to a remote server over a secure communication channel identified by the URI. The device is then provisioned onto a network based on comparisons of the UUID and the TOTP.

A first one or more messages is received, the one or more messages including a request for a storage expansion device for an extension of a provider network, an identifier of the extension of the provider network, and a set of one or more identifiers associated with objects to load to the storage expansion device. For each identifier in the set, an object associated with the identifier is copied from an object store of the provider network to the storage expansion device. A shipment of the storage expansion device to a specified location is initiated. The extension of the provider network is caused to launch an instance to communicate with the storage expansion device upon connection of the storage expansion device to the extension of the provider network.

Apparatus and associated methods relate to securely transmitting, directly between two mobile devices, AES-256 encrypted file attachments which are decrypted within an application program (APP) using a decryption key that is available only to the APP. In an illustrative embodiment, the encrypted file may be attached to an e-mail. The e-mail may be transmitted directly to another mobile device via direct Wi-Fi, for example. The e-mail may be transmitted directly to another mobile device using Bluetooth, for example. In encrypted attachment may be deciphered only within the APP running on the receiving mobile device using a private key accessible to only the APP.

Techniques are disclosed for securely distributing entropy in a distributed environment. The entropy that is distributed may be quantum entropy that is generated by a quantum entropy generator or source. The true random entropy generated by a trusted entropy generator can be communicated securely among computer systems or hosts using secure communication channels that are set up using a portion of the entropy. The distribution techniques enable computer systems and hosts, which would otherwise not have access to such entropy generated by the trusted entropy source, to have access to the entropy.

A computing system may include a client device configured to remotely access virtual computing sessions, and a virtual delivery appliance configured to connect the client device to the virtual computing sessions. The client device and the virtual delivery appliance may share a symmetric encryption key and encrypt data communications exchanged therebetween with the symmetric encryption key. The system may further include a gateway appliance configured to relay the encrypted communications between the client device and the virtual delivery appliance, the gateway appliance not having the symmetric key and being unable to decrypt the encrypted communications relayed between the virtual delivery appliance and the client device.

A quantum cryptographic key distribution system, including: an optical source, which generates a plurality of optical pulses; an optical beam splitter, which generates, starting from each optical pulse, a first and a second optical sub-pulse; a first and a second peripheral device; and an optical path having a first and a second end connected to the optical beam splitter, the optical path extending through the first and second peripheral devices and being traversed in opposite directions by the first and second optical sub-pulses. The peripheral device randomly phase shifts the second optical sub-pulse by a first phase, and the second peripheral device randomly phase shifts the first optical sub-pulse by a second phase. Furthermore, the optical path is such as to cause interference in the first optical beam splitter between the first and second optical sub-pulses, as a function of first and second phases.

Provided are a method, system, and article of manufacture for iterative data secret-sharing transformation and reconversion. In one aspect, data secret-sharing transformation and reconversion is provided in which each bit of an input stream of bits of data is split, on a bit by bit basis, into a pair of secret-sharing bits, and the secret-sharing bits of each pair of secret-sharing bits are separated into separate streams of secret-sharing bits. In this manner, one secret-sharing bit of each pair of secret-sharing bits may be placed in one stream of secret-sharing bits and the other secret-sharing bit of each pair may be placed in another stream of secret-sharing bits different from the one stream of secret-sharing bits. Confidentiality of the original input stream may be protected in the event one but not both streams of secret-sharing bits is obtained by unauthorized personnel. In another aspect, for an input stream of N bits, each received bit of the N bits of the input stream of data, may be interatively split, on a bit by bit basis, into a pair of secret-sharing bits, to generate as few as N+1 secret-sharing bits from the input stream of bits N bits. Other features and aspects may be realized, depending upon the particular application.

A network-based appliance includes a mechanism to enable the appliance to extract itself from man-in-the-middle (MITM) processing during a client-server handshake and without interrupting that connection. The mechanism enables the appliance to decide (e.g., based on a rule match against a received server certificate) to stop performing MITM during the handshake and thus to de-insert itself transparently, i.e., without interfering or signaling to either end of the session that this operation is occurring. Once the connection is abandoned in the manner, the appliance ignores additional traffic flow and thus can free up processing resources (CPU, memory, and the like) that would otherwise be required to decrypt the connection (even if no further inspection or rewrite processing would be expected to occur).