PATENT CLAIM ANALYSIS

Application Number: 15980179
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-10
Patent Classification: ["713", "153000"]

Abstract:
A cryptographic ASIC and method for autonomously storing context data into a one-time programmable memory in isolation. In one embodiment, the stored data describes product environmental history following manufacture, which may assist in assessing of a request for a refund or replacement of a defective product, such as an ASIC. The stored data may be cryptographically protected for retrieval and validation only by a manufacturer or authorized vendor. In another embodiment, communications between individual integrated circuits in a product may be secured by storing encryption keys as the context data, and exchanging the context data. The context data may be stored during manufacture, or thereafter. Such integrated circuits may be secured against replay attacks that capitalize on loss of context data that occurs when volatile memory is reset through power cycling, and enable inter-chip communications to be managed as are communications between unknown parties in an untrusted network.

Claim (Index 18):
The method of  claim 15 , further comprising:\n establishing a secure communications session for a subsequent data exchange between the integrated circuit and a second integrated circuit by transmitting the random number as a nonce to the second integrated circuit; responding with the second integrated circuit with the nonce, a hash of the nonce generated by a transform-enabled hashing circuit block, and a second nonce; and receiving a transform-enabled hash of the second nonce from the first integrated circuit.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 93.0
- Lexical Diversity: 1.76923
- Patent Class: 713.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15975615', '15979072', '15975539', '14997113', '14720007']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3575237072432374
- 35 USC 102 Novelty (BERT): 0.4746517926338772
- Combined Prediction Score: 0.3692365157823014
- Mean Citation Score: 148.636192
- Max Citation Score: 163.71938
- Similarity Product: 121.85630653900029

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test