Method for establishing secure communication link between computers of virtual private network
First Claim
1. A method for communicating using a private communication link between a client computer and a server computer over a computer network, the method comprising steps of:
- sending an information packet from the client computer to the server computer over the computer network, the information packet containing data that is used for forming a virtual private connection between the client computer and the server computer, the data that is used for forming the virtual private connection being inserted into a payload portion of the information packet at the client computer by an application layer program;
receiving the information packet at a kernel layer of an operating system on the server computer; and
determining at the kernel layer of the operating system on the server computer whether the information packet contains the data that is used for forming the virtual private connection.
3 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
64 Claims
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1. A method for communicating using a private communication link between a client computer and a server computer over a computer network, the method comprising steps of:
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sending an information packet from the client computer to the server computer over the computer network, the information packet containing data that is used for forming a virtual private connection between the client computer and the server computer, the data that is used for forming the virtual private connection being inserted into a payload portion of the information packet at the client computer by an application layer program;
receiving the information packet at a kernel layer of an operating system on the server computer; and
determining at the kernel layer of the operating system on the server computer whether the information packet contains the data that is used for forming the virtual private connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer-readable storage medium, comprising:
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a storage area; and
computer-readable instructions for a method for communicating using a private communication link between a client computer and a server computer over a computer network, the method comprising steps of;
sending an information packet from the client computer to the server computer over the computer network, the information packet containing data that is used for forming a virtual private connection between the client computer and the server computer, the data that is used for forming the virtual private connection being inserted into a payload portion of the information packet at the client computer by an application layer program;
receiving the information packet at a kernel layer of an operating system on the server computer; and
determining at the kernel layer of the operating system on the server computer whether the information packet contains the data that is used for forming the virtual private connection. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for communicating using a private communication link between a client computer and a server computer over a computer network, the method comprising steps of:
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generating an information packet at the client computer, modifying the information packet at an application layer within the client computer by inserting data into a payload portion of the information packet that is used for forming a virtual private connection between the client computer and the server computer; and
sending the modified information packet from the client computer to the server computer over the computer network. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A computer-readable storage medium, comprising:
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a storage area; and
computer-readable instructions for a method for communicating using a private communication link between a client computer and a server computer over a computer network, the method comprising steps of;
generating an information packet at the client computer, modifying the information packet at an application layer within the client computer by inserting data into a payload portion of the information packet that is used for forming a virtual private connection between the client computer and the server computer; and
sending the modified information packet from the client computer to the server computer over the computer network. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method for communicating using a private communication link between a server computer and a client computer over a computer network, the method comprising steps of:
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generating an information packet at the server computer, modifying the information packet at a kernel layer within an operating system of the server computer by inserting data into a payload portion of the information packet that is used for forming a virtual private connection between the server computer and the client computer; and
sending the modified information packet from the server computer to an application layer in the client computer over the computer network. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. A computer-readable storage medium, comprising:
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a storage area; and
computer-readable instructions for a method for communicating using a private communication link between a server computer and a client computer over a computer network, the method comprising steps of;
generating an information packet at the server computer, modifying the information packet at a kernel layer within an operating system of the server computer by inserting data into a payload portion of the information packet that is used for forming a virtual private connection between the server computer and the client computer; and
sending the modified information packet from the server computer to an application layer in the client computer over the computer network. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64)
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Specification