Secure financial transactions
AssigneesBlackBerry Limited, Certicom Corp.
InventorsAnthony Rosati, Matthew John Campagna, Gregory Marc Zaverucha, Scott Alexander Vanstone
Life of this patent
Estimating the term…
Abstract
A method of securely communicating a message for a financial transaction from a first correspondent to one or more recipients. The method comprises dividing the message into at least two portions. Each portion is intended for a recipient. Each portion intended for receipt by one of the recipients is encrypted with that recipient's public key. The message is signed and transmitted to one of the recipients to enable the recipient to verify the message and further transmit the message to a further recipient.
Claims20
A method of securely communicating a message from a first correspondent device to one or more second correspondent devices, the method comprising:
- (a) dividing the message into a plurality of components comprising at least one confidential component intended for a respective one of the second correspondent devices;
- (b) encrypting and signing each of the at least one confidential component with a public value of a respective one of the second correspondent devices;
- and
- (c) transmitting the message to one of the second correspondent devices to enable the one of the second correspondent devices to obtain its respective confidential component.
A device for securely communicating a message from a first correspondent to one or more second correspondents, the device being associated with the first correspondent, the device comprising a processor configured for:
- (a) dividing the message into a plurality of components comprising at least one confidential component intended for a respective one of the second correspondent devices;
- (b) encrypting and signing each of the at least one confidential component with a public value of a respective one of the second correspondent devices;
- and
- (c) transmitting the message to one of the second correspondent devices to enable the one of the second correspondent devices to obtain its respective confidential component.
Dependencies are inferred from the claim text.