Abstract: Certain embodiments of the present invention provide an archive management application that operates within a host application to provide access to an archive and/or allow access to and/or modification of files in an archive using the host application's interface, instead of operating as a separate standalone archive management application. In an embodiment of the present invention, a file archiving system may include a user interface component, a file management component and a compression/extraction engine component. The user interface component may include an enhanced user interface of a host application that provides an interface for a user. The file management component may include a central directory that provides a representation of the contents of an archive. The compression/extraction engine component may include a file size module and/or a security module. The file size module may be used to compress and/or decompress a file in an archive.

Abstract: The present invention provides a method of integrating existing strong encryption methods into the processing of a .ZIP file to provide a highly secure data container which provides flexibility in the use of symmetric and asymmetric encryption technology. The present invention adapts the well established .ZIP file format to support higher levels of security and multiple methods of data encryption and key management, thereby producing a highly secure and flexible digital container for electronically storing and transferring confidential data.

Abstract: The present invention provides a method of integrating existing strong encryption methods into the processing of a .ZIP file to provide a highly secure data container which provides flexibility in the use of symmetric and asymmetric encryption technology. The present invention adapts the well established .ZIP file format to support higher levels of security and multiple methods of data encryption and key management, thereby producing a highly secure and flexible digital container for electronically storing and transferring confidential data.

Abstract: A computer program for managing and manipulating archive zip files of a computer. The program includes a system and method for opening, creating, and modifying, and extracting zip archive files. The program is fully integrated into Microsoft Windows Explorer and is accessed via Explorer menus, toolbars, and/or drag and drop operations. An important feature of the program is the archive manager which may be used to open a zip file, create a new zip file, extract zip files, modify zip files, etc. The program is integrated into Microsoft Windows Explorer using the shell name space extension application program interface developed by Microsoft.

Abstract: The present invention provides a method of integrating existing strong encryption methods into the processing of a .ZIP file to provide a highly secure data container which provides flexibility in the use of symmetric and asymmetric encryption technology. The present invention adapts the well established .ZIP file format to support higher levels of security and multiple methods of data encryption and key management, thereby producing a highly secure and flexible digital container for electronically storing and transferring confidential data.

Abstract: A computer program for managing and manipulating archive zip files of a computer. The program includes a system and method for opening, creating, and modifying, and extracting zip archive files. The program is fully integrated into Microsoft Windows Explorer and is accessed via Explorer menus, toolbars, and/or drag and drop operations. An important feature of the program is the archive manager which may be used to open a zip file, create a new zip file, extract zip files, modify zip files, etc. The program is integrated into Microsoft Windows Explorer using the shell name space extension application program interface developed by Microsoft.

Abstract: Certain embodiments of the present invention provide an archive management application that operates within a host application to provide access to an archive and/or allow access to and/or modification of files in an archive using the host application's interface, instead of operating as a separate standalone archive management application. In an embodiment of the present invention, a file archiving system may include a user interface component, a file management component and a compression/extraction engine component. The user interface component may include an enhanced user interface of a host application that provides an interface for a user. The file management component may include a central directory that provides a representation of the contents of an archive. The compression/extraction engine component may include a file size module and/or a security module. The file size module may be used to compress and/or decompress a file in an archive.

Abstract: The present invention provides a method of integrating existing strong encryption methods into the processing of a .ZIP file to provide a highly secure data container which provides flexibility in the use of symmetric and asymmetric encryption technology. The present invention adapts the well established .ZIP file format to support higher levels of security and multiple methods of data encryption and key management, thereby producing a highly secure and flexible digital container for electronically storing and transferring confidential data.

Abstract: The present invention provides a method of integrating existing strong encryption methods into the processing of a .ZIP file to provide a highly secure data container which provides flexibility in the use of symmetric and asymmetric encryption technology. The present invention adapts the well established .ZIP file format to support higher levels of security and multiple methods of data encryption and key management, thereby producing a highly secure and flexible digital container for electronically storing and transferring confidential data.

Abstract: The present invention provides a method of integrating existing strong encryption methods into the processing of a .ZIP file to provide a highly secure data container which provides flexibility in the use of symmetric and asymmetric encryption technology. The present invention adapts the well established .ZIP file format to support higher levels of security and multiple methods of data encryption and key management, thereby producing a highly secure and flexible digital container for electronically storing and transferring confidential data.

Abstract: A method and system for generating a patch file from an old version of data which consists of a series of elements and a new version of data which also consists of a series of elements. Several patch files may then be aggregated into a secure, portable compressed archive to decrease the storage and transfer requirements of the patch file. The compressed archive uses an encryption process and may include an authentication process using digital signatures to secure the contents of the patch file from unauthorized access and to validate the identity of the creator of the archive. The archive is preferably in the format of a self-extracting .ZIP file, which file may include a rules-based form of intelligence to detect the presence of the appropriate files to be patched and to determine how the patching process should proceed.

Abstract: A system for generating a patch file from an old version of computer code which consists of a series of elements and a new version of computer code which also consists of a series of elements. Both the old and new versions of computer code are stored in a memory of a computer. An alphabet for processing the old and new versions of computer code is programmed into the computer and, once established, the old version of computer code is sorted with the data processor alphabetically according to the established alphabet to create a first sorted list of code. A pointer is maintained in order to indicate each element's original location in the old version of computer code. Similarly, the new version of computer code is also sorted alphabetically to create a second sorted list of code with a pointer of each element to indicate the element's original location in the new version of computer code.

Abstract: Methods and apparatus for string searching and data compression. In the string search method and apparatus pointers to the string to be searched are indexed via a hashing function and organized according to the hashing values of the string elements pointed to. The hashing function is also run on the string desired to be found, and the resulting hashing value is used to access the index. If the resulting hashing value is not in the index, it is known that the target string does not appear in the string being searched. Otherwise the index is used to determine the pointers which correspond to the target hashing value, these pointers pointing to likely candidates for matching the target string. The pointers are then used to sequentially compare each of the locations in the string being searched to the target string, to determine whether each location contains a match to the target string.