Software copying system

Details Software copying system Software copying system

1996-10-28

1998-09-08

Cangialosi, Salvatore

Cryptography

Cryptanalysis

380 25, H04L 900

Patent

active

058056998

ABSTRACT:
A software copying system which enables copyrighted software recorded in a master storage medium to be copied to a user's target storage medium in a legitimate manner. A contents identifier reading unit reads out a software identifier from the master storage medium, while a storage medium identifier reading unit reads out a storage medium identifier from the target storage medium., The two identifiers are then sent to a central site which manages licenses for the right to copy software products. At the central site, a signature generating unit produces a first signature from those identifiers and sends it back to the user's site, where a signature writing unit writes the received signature into the target storage medium. A signature generating/comparing unit produces a second signature out of the same identifiers as those sent to the central site, and compares it with the first signature stored in the target storage medium. A data copying unit copies the subject software data file from the master storage medium to the target storage medium, only when the first and second signatures coincide with each other.

REFERENCES:
patent: 4658093 (1987-04-01), Hellman
patent: 5182770 (1993-01-01), Medveczky et al.
patent: 5421006 (1995-05-01), Jablon et al.
patent: 5513260 (1996-04-01), Ryan
patent: 5659613 (1997-08-01), Copeland et al.

Affiliated with

Also associated with

Rating

Software copying system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Software copying system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Software copying system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1291495