H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 7/24 (2006.01) H04L 9/28 (2006.01) H04L 9/32 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01)
Patent
CA 2149067
The present invention discloses an apparatus and method for transmitting a data packet over a wireless network with improved security. Each transmitted message includes three segments. A first segment includes information identifying the originator of the message. A second segment includes a digital signature obtained by hashing and encrypting the data to be transmitted. A third segment includes the data packet. Upon receiving the message, a wireless receiving unit uses the information contained in the first segment to retrieve an encryption key and, thereby, identify the originator of the message. The wireless receiving unit then hashes and encrypts the received data packet according to the same hashing and encryption algorithms used to form the digital signature. The resulting encrypted hashed version of the data packet is compared to the received digital signature in order to establish the integrity of the received data packet.
Bednar Joseph Anton Jr.
Mcnair Bruce Edwin
Unangst Diane Roberta
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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