Abstract: A method for compressing and decompressing files is provided. The method includes creating a list of shift-invariant focal points of neighborhoods in the stream and comparing those focal points to a list of focal points created using the same method on the reference stream. The method of the present invention searches for the longest sequence of focal points that appear in both files. The method of the present invention also verifies that neighborhoods contain the same focal points. The changed data and references to the reference stream are then encoded. The decompression process decodes the encoded stream of data, and using the reference stream recreates the new version of stream.

Abstract: An authentication component resides between a server and a client, or on a server, and monitors one or more transactions communicated between the server and the client. When the authentication component detects a transaction that contains a termination indication, the authentication session is terminated, forcing the client to re-authenticate the next time a transaction with the server is desired. The termination indication may have been provided by an application running on the server, or alternatively, the termination indication may be provided by the authentication component.

Abstract: A method for compressing and decompressing files is provided. The method includes creating a list of shift-invariant focal points of neighborhoods in the stream and comparing those focal points to a list of focal points created using the same method on the reference stream. The method of the present invention searches for the longest sequence of focal points that appear in both files. The method of the present invention also verifies that neighborhoods contain the same focal points. The changed data and references to the reference stream are then encoded. The decompression process decodes the encoded stream of data, and using the reference stream recreates the new version of stream.

Abstract: A method for compressing (16) and decompressing files is provided. The method includes creating a list of shift-invariant focal points (108) of neighborhoods in the stream and comparing those focal points (108) to a list of focal points (106) created using the same method on the reference stream. The method of the present invention searches for the longest sequence of focal points (108) that appear in both files (102, 104). The method of the present invention also verifies that neighborhood contain the same focal points (108). The changed data and references to the reference stream are then encoded (114). The decompression process decodes the encoded stream of data (114), and using the reference stream recreates the new version of stream.

Abstract: Systems and methods for transmitting data between origin and destination networks are provided. Data complying with a first protocol is received at a front end of the origin network. At least one protocol layer of the first protocol is stripped from the received data such that only a portion of the received data is selected for transmission to a front end of the destination network. The selected data is transmitted to the front end of the at least one destination network using a second protocol different from the first protocol. The selected data can be transmitted over the at least one destination network using a third protocol different from the second protocol. Techniques for electrically isolating the origin and destination networks are also provided.

Abstract: An authentication component resides between a server and a client, or on a server, and monitors one or more transactions communicated between the server and the client. When the authentication component detects a transaction that contains a termination indication, the authentication session is terminated, forcing the client to re-authenticate the next time a transaction with the server is desired. The termination indication may have been provided by an application running on the server, or alternatively, the termination indication may be provided by the authentication component.