Thomas G Root

US Patent:

20150074410, Mar 12, 2015

Filed:

Nov 14, 2014

Appl. No.:

14/541338

Inventors:

- Saratoga CA, US
Roy E. Martin - Saratoga CA, US
Thomas M. Root - Scottsdale AZ, US
Stephen J. Pierce - Milpitas CA, US

International Classification:

H04L 29/06

US Classification:

713171

Abstract:

A cryptographic system makes everyday data objects, such as a document or conversation, unreadable to anyone other than the owner or those currently having permission to access the data objects. The cryptographic system is transparent by requiring no additional effort on the part of any user in the encryption/decryption process other than entering a user identifier and password. Each document is encrypted with a unique encryption key. Changes to data object access permissions are immediately honored and enforced by enabling or disabling access to certain decryption keys. Decryption of data objects requires information known only to the owner of the data object or those permitted to access the data object. This decryption information is not stored anywhere in the system.

US Patent:

20140169554, Jun 19, 2014

Filed:

Dec 19, 2012

Appl. No.:

13/719705

Inventors:

- Saratoga CA, US
Roy E. Martin - Saratoga CA, US
Thomas M. Root - Boise ID, US
Stephen J. Pierce - Milpitas CA, US

Assignee:

VERIFYLE, INC. - Saratoga CA

International Classification:

H04L 9/08

US Classification:

380 28

Abstract:

A cryptographic system makes everyday data objects, such as a document or conversation, unreadable to anyone other than the owner or those currently having permission to access the data objects. The cryptographic system is transparent by requiring no additional effort on the part of any user in the encryption/decryption process other than entering a user identifier and password. Each document is encrypted with a unique encryption key. Changes to data object access permissions are immediately honored and enforced by enabling or disabling access to certain decryption keys. Decryption of data objects requires information known only to the owner of the data object or those permitted to access the data object. This decryption information is not stored anywhere in the system.