PATENT CLAIM ANALYSIS

Application Number: 15750706
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["380", "044000"]

Abstract:
Some embodiments are directed to an electronic cryptographic device arranged to determine a cryptographic key. The cryptographic device can include a physically unclonable function (PUF) arranged to produce a first noisy bit string during the enrollment phase and a second noisy bit string during the reconstruction phase, and a statistical unit arranged to execute a statistical test for verifying correct functioning of the physical unclonable function. The statistical test computes a statistical parameter for the physical unclonable function using helper data. The statistical test determines correct functioning if the statistical parameter satisfies a criterion of the statistical test.

Claim (Index 13):
The electronic cryptographic as in  claim 1 , further comprising:\n a random seed generating unit configured to generate a random seed by applying an entropy concentration function to a noisy bit string produced by the physically unclonable function only if the second statistical test indicates correct functioning, wherein\n the random seed generating unit is configured to apply the entropy concentration function to the second noisy bit string, \n or, wherein\n the physically unclonable function (PUF) is configured to produce a further noisy bit string during the reconstruction phase, the second noisy bit string being different from the further noisy bit string, and \n the random seed generating unit is configured to apply the entropy concentration function to the further noisy bit string.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 88.0
- Lexical Diversity: 1.90909
- Patent Class: 380.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15539900', '14360519', '13501875', '14426728', '14718017']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3829234771536466
- 35 USC 102 Novelty (BERT): 0.5640555663430101
- Combined Prediction Score: 0.4010366860725829
- Mean Citation Score: 311.466186
- Max Citation Score: 436.1708
- Similarity Product: 406.2870244088411

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