PATENT CLAIM ANALYSIS

Application Number: 16190073
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-10
Patent Classification: ["380", "044000"]

Abstract:
A cryptographic ASIC and method for autonomously storing data into a one-time programmable memory in isolation. Internal circuitry provides programming pulses of a given voltage magnitude and duration for changing the state of selected memory elements. Use of internal circuitry reduces pin count and increases reliability and security over devices relying on external circuitry to provide programming pulses. In one embodiment, the stored data comprises cryptographic data for enforcing a derivative key hierarchy for managing an information stream, such as a blockchain.

Claim (Index 31):
A cryptographic integrated circuit for managing operations on an information stream, comprising:\n a transform key generator configured to derive a transform key from a temporary copy of a user passphrase using a sequential application of at least two OWFs to the user passphrase; a one-time programmable memory configured to store the transform key in isolation using programming pulses from internal circuitry; a first one-way function (OWF) circuit block configured to generate a hash of an input message; a programmable transformation function circuit block configured to be customized by the transform key and transform the hash into a transformed hash; and a second OWF circuit block configured to generate a second hash of the transformed hash as an output result.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 98.0
- Lexical Diversity: 1.375
- Patent Class: 380.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15975539', '15979072', '15975615', '15994938', '15994877']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4087013348811538
- 35 USC 102 Novelty (BERT): 0.4648016266894021
- Combined Prediction Score: 0.4143113640619786
- Mean Citation Score: 216.88480600000003
- Max Citation Score: 247.041
- Similarity Product: 241.16177377831937

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

Dataset: test