Prior art

To find the most relevant prior art for US patent 11973864, I will analyze the citations listed on the patent. "Anticipation" under 35 U.S.C. § 102 means that a single prior art reference discloses every element of the claimed invention, identically and arranged as in the claim. If a prior art reference anticipates a claim, it means someone else invented the exact same thing before the patent application was filed, making the claim "not novel" and thus unpatentable.

Please note that I do not have direct access to a live, queryable USPTO database that can return the full list of cited prior art with detailed descriptions and specific claim anticipations. However, I can extract information from the provided patent text, which often includes a list of "Prior art keywords" and references.

Based on the provided patent text, the "Prior art keywords" are: "module", "server", "key", "message", and "public key".

To fully identify the most relevant prior art and determine which claims they potentially anticipate, I would need to access the full list of "References Cited" from the USPTO database for US11973864B2. Without direct access to that specific section of the patent or a USPTO search interface that provides detailed citation analysis, I cannot provide the full citations, brief descriptions, and specific claim anticipations for all prior art references.

To complete this task, a search of the "References Cited" section of US11973864B2 on the USPTO Patent Public Search tool or a similar resource would be necessary. This would involve looking up the patent by its publication number (US11973864B2) or patent number (11973864) and then navigating to its cited references section.