Abstract: A system and method for communicating a package of information. The system comprises a machine readable medium having information packaging software that generates a computer executable file (FIG. 1, 14) comprising a package of information. The packet information comprises the file of data and encryption software. The system communicates the package of information over a network (FIG. 1, 16) that is in communication with a machine readable medium. A client computer system (FIG. 1, 17) in communication with the network is adapted to receive the package of information and execute the computer executable. The computer system has a client permissions database (FIG. 1, 20) and a vault adapted to receive the package of information.

Abstract: A method for providing data security in a device driver for accessing data. The device driver detects a file system request, completes the file system request, and receives return information from the file system request. The device driver further determines whether the file system request is for a tag file associated with a secured file; and if so, modifies the return information to reflect a file attribute of the secured file.

Abstract: A file system security driver and vault method and system particularly applicable to a system in which protected data is segregated from other data, which allows for back-channeling of file data in order to ensure that files created by applications using secured data do not cause data leaks of secure data. In a preferred embodiment, a file system security driver is a driver resident on the kernel level which monitors file system requests and allows limited access to files resident on the vault and creation of files within the vault when necessary.

Abstract: A shared memory blocking method and particularly applicable to a system in which protected data is transmitted to a recipient computer. The method comprises reserving a memory page for a requesting application, committing a memory page to the requesting application's address space, which call may be made by the process providing the page reserve call or by a subsequent process, and providing security checks to complete the requests. The security checks include determining whether the process is secured by consulting a secured process list and determining whether the page is shared by consulting a shared memory list. Further disclosed are a computer readable medium and computer programmed to block shared memory, shared memory blocking system and secured data transmission system.

Abstract: A method and apparatus are provided that enhance file system calls to a file system structure of an operating system. In particular, file system calls can be enhanced to provide real-time secure file deletion on an ongoing basis. A file system call that is intended to perform a function with respect to data stored on a storage device is intercepted. It is then determined whether the file system call is of a type that should be processed. If not, the original file system call is passed on through the file system. If the file system call should be processed, supplemental processing is performed to enhance the original file system call and the file system call is transparently returned to the calling system application. In embodiment, real-time secure file deletion is implemented using a vendor supplied driver (VSD) executing within the installable file system (IFS) of WINDOWS 95. Further, a method and system are disclosed for real-time secure data deletion in a system having an NTFS file system.

Abstract: The state of a media device is identified by monitoring file system calls. A determination is made whether or not a file system call originated from a specified high level application. In one implementation, the high level application writes to a monitored media device in order to perform a flushing process to securely delete inactive data.

Abstract: A method and apparatus are disclosed for sanitization of a fixed storage device interfaced to a computer system. The computer system is booted from a removable storage device that holds a bootable disk operating system and program code that is executed within the disk operating system. The fixed storage device is detected. The writeable space of the fixed storage device is then overwritten with a plurality of overwrite layers. Further, a report can be printed listing information about the sanitization process contemporaneously upon the completion of sanitization. In one embodiment, sanitizing is accomplished using a plurality of patterns, each layer having an associated pattern, to ensure that data can not be recovered even by destructive analysis.

Abstract: A method and apparatus are provided that enhance file system calls to a file system structure of an operating system. In particular, file system calls can be enhanced to provide real-time secure file deletion on an ongoing basis. A file system call that is intended to perform a function with respect to data stored on a storage device is intercepted. It is then determined whether the file system call is of a type that should be processed. If not, the original file system call is passed on through the file system. If the file system call should be processed, supplemental processing is performed to enhance the original file system call and the file system call is transparently returned to the calling system application. In embodiment, real-time secure file deletion is implemented using a vendor supplied driver (VSD) executing within the installable file system (IFS) of WINDOWS 95. Further, a method and system are disclosed for real-time secure data deletion in a system having an NTFS file system.