Digital signaturing method and system for packaging specialized native files for open network transport and for burning onto cd-rom

a digital signaturing and native file technology, applied in the direction of digital transmission, securing communication, instruments, etc., can solve the problems of limiting the type of files that are burned into cd-rom, and all those attributes will be los

Inactive Publication Date: 2002-05-23
UNISYS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021] The present system is applicable in the Unisys ClearPath environment which involves a situation where two systems are connected to and communicating with each other, for example, such as that both a Microsoft NT platform and a Unisys A Series platform can both read from the same Compact Disc in a compatible fashion. Thus, this makes it possible to put the NT platform software and the A Series platform software all on the same CDROM.
[0022] The present system is also applicable in a heterogeneous networking environment where one Unisys A Series system needs to transport is native files across computers of different platforms (for example, UNIX, Windows NT) to another Unisys A Series system. The method enables native files to be encoded in such a way that they can be treated as simple text files by any computing platform and to be restored back to their original forms by an A Series machine without losing their native attributes.

Problems solved by technology

However, when it is desirable to integrate a first system such as the A Series systems for operation with other platforms such as an NT system, then problems arise in that the second system such as the NT system, utilizes formats which are not compatible with the software formats of the A Series system, which is the first system.
This method has the limitation in that it limits the type of files that are burned into CD-ROMs to those of the native A Series files.
When these files are transferred to a PC running Windows NT, all those attributes will be lost.
This is so, since the checksum is not sufficient to ensure that a Disk File Header has not been intentionally corrupted, since the checksum algorithm is not protected, and could easily be reproduced.

Method used

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  • Digital signaturing method and system for packaging specialized native files for open network transport and for burning onto cd-rom
  • Digital signaturing method and system for packaging specialized native files for open network transport and for burning onto cd-rom
  • Digital signaturing method and system for packaging specialized native files for open network transport and for burning onto cd-rom

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example

[0248] Using the WFL WRAP syntax, to pass the system DSA private key in the task attribute TASKSTRING, a Work Flow Language (WFL) job can then be created to automate the wrapping process.

[0249] In a Command and Edit (CANDE) session, do the following:

[0250] WFL WRAP AFILE AS WRAPPED / AFILE;TASKSTRING=

[0251] WFL WRAP ADIR / =INTO CONTAINERA; TASKSTRING=

[0252] It should be noted that the files can also be wrapped and signatured using a programmatic interface to the MCP-exported entry point MCP_FILEWRAPPER.

[0253] Wrap and Signature File:

[0254] FIG. 6 is an illustration of wrapping and signaturing a file. Here, it is seen that the wrapping sequence receives information from the DSAKEYSFILE. It also receives an input from the system DSA private key, in addition to receiving the file information, after which the wrapping sequence will produce the signatured file.

[0255] 5. To make sure that wrapped files are signatured correctly, it is desirable to verify these files before shipping them out t...

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Abstract

A specialized data format native to a first platform is wrap-packaged into an industry-standard text file in a protocol suitable for Internet transmittal. A Signature Support Library provides parameters to combine with a User's private key to generate a signature particular to the data file being converted.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS:[0001] This application is related to a co-pending application U.S. Ser. No. 08 / 962,468 entitled "Method and System for Wrapping Single Files for Burning into Compact Disk", and to co-pending application U.S. Ser. No. ______ entitled "Digital Signaturing Method and System for Re-Creating Specialized Native Files from Single Wrapped Files Imported from an Open Network or Residing on a CD-ROM", each of which co-pending applications are incorporated herein by reference.FIELD OF THE INVENTION:[0002] This system relates to methods for enabling and signaturing data files which are organized in a first native format to be packaged (wrapped) and burned onto a Compact Disk and to enable the packaged files to be transported via standard protocols and utilized outside their native environment in networks utilizing different data formats.[0003] In the usage of modern computer systems and networks, the situation arises where systems having one proprietary...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F21/00
CPCG06F21/6236
Inventor COTUGNO, LAUREN ANNPHAM, THIEN HUU
Owner UNISYS CORP
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