US 11,706,023 B2
System and method for mitigating international revenue share fraud
Divesh Srivastava, Summit, NJ (US); Yaron Kanza, Fair Lawn, NJ (US); Tamraparni Dasu, New Vernon, NJ (US); Teddy Chu, Dallas, TX (US); Shuaicheng Ma, Orlando, FL (US); and Li Xiong, Atlanta, GA (US)
Assigned to AT&T Intellectual Property I, L.P., Atlanta, GA (US); and Emory University, Atlanta, GA (US)
Filed by AT&T Intellectual Property I, L.P., Atlanta, GA (US); and Emory University, Atlanta, GA (US)
Filed on May 10, 2021, as Appl. No. 17/315,620.
Prior Publication US 2022/0360433 A1, Nov. 10, 2022
Int. Cl. H04L 29/06 (2006.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); H04L 9/00 (2022.01)
CPC H04L 9/0833 (2013.01) [H04L 9/085 (2013.01); H04L 9/0861 (2013.01); H04L 9/3239 (2013.01); H04L 9/50 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a processing system including a processor; and
a memory that stores executable instructions that, when executed by the processing system, facilitate performance of operations, the operations comprising:
receiving an international call;
selecting a next carrier to handoff the international call;
generating a call data record (CDR) for the handoff to the next carrier;
encrypting the CDR using a call encryption key, thereby creating an encrypted CDR;
encrypting the encrypted CDR using a committee encryption key, thereby creating a double encrypted CDR;
recording the double encrypted CDR to a blockchain; and
sending the call encryption key to the next carrier.