Cryptomill Inc.

Deepu Filji

Nandini Jolly

Cristian Sebastian Niculescu

David Dai

Chen Li Tien

Christian George Batty

Canute Serrao

Ivan Canute Serrao

Joseph Mari Villamor Ocol

Chris Batty

Joseph Mari Ocol

Canute Ivan Serrao

A system and method for controlling access to a message after communication. A sender sends an encrypted message to a recipient. The sender also sends an encryption key and the identity of the recipient to a services component. The recipient authenticates its access rights with the services component to obtain the encryption key. The key is held for a period of time for the recipient to access the encrypted message. The recipient may re-authenticate with the services component to again obtain the key to subsequently access the message. The sender may revoke or reinstate the receiver's access to the message by updating the service component.

System and method for providing privacy control to message based communications

A method of protecting data is disclosed herein. The method comprises: encrypting a data in a protected data item using a first encryption key; and encrypting the first encryption key in the protected data item using a second encryption key that is unique to the protected data item, wherein the unique second encryption key is derived from a third encryption key in the protected data item and to a plurality of protected data items comprising a common characteristic shared with the protected data item.

Method and system for secure data sharing

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Toronto, Canada

Deepu Filji