Wai Kai Leung

US Patent:

20050289639, Dec 29, 2005

Filed:

Jun 23, 2004

Appl. No.:

10/874778

Inventors:

Wai Leung - Houston TX, US

International Classification:

H04L009/00

US Classification:

726002000

Abstract:

The present invention provides an integrated method and system implemented on a plurality of computer systems in a network. The method is for securing and controlling access to digitized files utilized in the documentation management process. The method further comprises generating a project encryption key for an identified project having a plurality of project documents as well as controlling access to the project encryption key and the plurality of project documents of the identified project to authenticated users. Then, for a selected project document of an authenticated user, an encrypted digitized document is generated utilizing the project encryption key. For a selected project document of an authenticated user, an encrypted text from the selected encrypted graphic image is generated utilizing the project encryption key. For a selected project document of an authenticated user, an encrypted searchable PDF from the selected encrypted PDF is generated utilizing the project encryption key. For a selected project document of an authenticated user, coding instructions is performed on the encrypted digitized file utilizing the project encryption key. Coding instructions can be performed manually or programmatically. For a selected project document of an authenticated user, print (blowback) the encrypted PDF or image utilizing the project encryption key. In some embodiments, a project encryption key is not generated but accepted and stored within the system. Additionally, the system and method is adapted to handle the offsite or offshore coding process.

US Patent:

20160148021, May 26, 2016

Filed:

Nov 21, 2014

Appl. No.:

14/549838

Inventors:

Sze Yuen Wong - Herndon VA, US
Wai Pong Leung - Clarksburg MD, US

International Classification:

G06F 21/78
G06F 21/62
G06F 21/60

Abstract:

A method for sharing encrypted data and encryption keys through a system comprised of the following data types, but not limited to a; 1) Record and its encryption key, 2) RecordSet and its encryption key, and 3) Entity and its encryption key. A Record is encrypted using an encryption key, furthermore, the Record encryption key is encrypted using a RecordSet encryption key, and finally, both the encrypted Record and its encrypted encryption key are wrapped as a single unit, to avoid key the expensive operations of key lookup and general key operation overhead. Access control to the RecordSet encryption keys are provided by a combination of data types, but not limited to a; 1) Entity and its encryption key, 2) Ciphers, and 3) Trusted Entity Lists. For each Entity which is authorized access to access a RecordSet, an encrypted Cipher, made of both the Entity encryption key and RecordSet encryption key, is added to a Trusted Entity List. Tokens are protected by user defined secrets, comprised of Entity encryption keys.