Patent ID: 11968316
Assignee: CABLE TELEVISION LABORATORIES, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A system for an enhanced public key infrastructure (PKI), comprising:
a processor; and
a memory device in operable communication with the processor, and configured to store a plurality of computer-executable instructions therein, which, when executed by the processor, cause the processor to:
receive a digital certificate including a composite signature field including a plurality of signatures including at least a first signature and a second signature, wherein the digital certificate is generated with a quantum resistant algorithm;
retrieve, from the digital certificate, a first key associated with the first signature from the digital certificate;
retrieve the first signature from the composite signature field; validate the first signature using the first key;
retrieve, from the digital certificate, a second key associated with the second signature;
retrieve the second signature from the composite signature field;
validate the second signature using the second key;
validate the received digital certificate based on the validation of the first and second signatures retrieve, from the digital certificate, a third key associated with the third signature of the plurality of signatures; retrieve the third signature from the composite signature field; and validate the third signature using the third key.