摘要:
In one embodiment, a method includes generating a Domain Name Service (DNS) request comprising a domain name, determining that the DNS request corresponds to a first computer configured to communicate securely, and sending, based on the determination, a request to establish a communication link with the first computer configured to communicate securely, the request including an identifier of a client device used to determine whether the client device is authorized to communicate with the first computer. The method includes receiving, in response to the request to establish the communication link, a resource used to establish the communication link, wherein the resource corresponds to a qualify of service level for the communication link, determining, in response to the request to establish a communication link, whether a software module for communicating securely requires installation on the client device, and if it is determined that the software module requires installation on the client device: accessing a network address for downloading the software module, downloading the software module, and installing the software module on the client device. The method also includes automatically establishing the communication link having the quality of service level using the received resource communicating securely with the first computer over the established communication link having the quality of service, wherein the communication link passes through one or more intermediate devices that provide anonymity of at least one of the client device and the first computer, and client device is a user device.
摘要:
A network device comprises a storage device storing an application program for a secure communications service, and at least one processor configured to execute the application program for the secure communications service so as to enable the network device to send a request to look up a network address of a second device based on an identifier associated with the second device, receive an indication that the second device is available for the secure communications service, the indication including the requested network address and provisioning information for a secure communication link, connect to the second device over the secure communication link, using the received network address of the second device and the provisioning information for the secure communication link, and communicate at least one of video data and audio data with the second device using the secure communications service via the secure communication link.
摘要:
A network device comprises a storage device storing an application program for a secure communications service, and at least one processor configured to execute the application program for the secure communications service so as to enable the network device to send a request to look up a network address of a second device based on an identifier associated with the second device, receive an indication that the second device is available for the secure communications service, the indication including the requested network address and provisioning information for a secure communication link, connect to the second device over the secure communication link, using the received network address of the second device and the provisioning information for the secure communication link, and communicate at least one of video data and audio data with the second device using the secure communications service via the secure communication link.
摘要:
A technique is disclosed for establishing a secure communication link between a first computer and a second computer over a computer network. Initially, a secure communication mode of communication is enabled at a first computer without a user entering any cryptographic information for establishing the secure communication mode of communication. Then, a secure communication link is established between the first computer and a second computer over a computer network based on the enabled secure communication mode of communication. The secure communication link is a virtual private network communication link over the computer network in which one or more data values that vary according to a pseudo-random sequence are inserted into each data packet.
摘要:
A network device comprises a storage device storing an application program for a secure communications service; and at least one processor configured to execute the application program enabling the network device to: (a) send a request to look up a network address of a second network device based on an identifier; (b) receive an indication that the second network device is available for the secure communications service, the indication including the requested network address of the second network device and provisioning information for a secure communication link; (c) connect to the second network device over the secure communication link, using the received network address of the second network device and the provisioning information for the secure communication link; and (d) communicate at least one of video data and audio data with the second network device using the secure communications service via the secure communication link.
摘要:
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.
摘要:
A technique is disclosed for establishing a secure communication link between a first computer and a second computer over a computer network. Initially, a secure communication mode of communication is enabled at a first computer without a user entering any cryptographic information for establishing the secure communication mode of communication. Then, a secure communication link is established between the first computer and a second computer over a computer network based on the enabled secure communication mode of communication. The secure communication link is a virtual private network communication link over the computer network in which one or more data values that vary according to a pseudo-random sequence are inserted into each data packet.
摘要:
A system and method connect a first network device and a second network device by initiating a secure communication link. The system includes one or more servers configured to: receive, from the first network device, a request to look up a network address of the second network device based on an identifier associated with the second network device; determine, in response to the request, whether the second network device is available for a secure communications service; and initiate a secure communication link between the first network device and the second network device based on a determination that the second network device is available for the secure communications service; wherein the secure communications service uses the secure communication link to communicate at least one of video data and audio data between the first network device and the second network device.
摘要:
A plurality of computer nodes communicate using seemingly random Internet Protocol source and destination addresses. 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 quickly rejected. Improvements to the basic design include (1) a load balancer that distributes packets across different transmission paths according to transmission path quality; (2) a DNS proxy server that transparently creates a virtual private network in response to a domain name inquiry; (3) a large-to-small link bandwidth management feature that prevents denial-of-service attacks at system chokepoints; (4) a traffic limiter that regulates incoming packets by limiting the rate at which a transmitter can be synchronized with a receiver; and (5) a signaling synchronizer that allows a large number of nodes to communicate with a central node by partitioning the communication function between two separate entities.
摘要:
A secure domain name service for a computer network is disclosed that includes a portal connected to a computer network, such as the Internet, and a domain name database connected to the computer network through the portal. The portal authenticates a query for a secure computer network address, and the domain name database stores secure computer network addresses for the computer network. Each secure computer network address is based on a non-standard top-level domain name, such as .scom, .sorg, .snet, .snet, .sedu, .smil and .sint.