PATENT CLAIM ANALYSIS

Application Number: 16180537
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-03
Patent Classification: ["713", "156000"]

Abstract:
A method and system of enforcing a computer policy uses a central server to manage user profiles, policies and encryption keys. The server securely supplies the keys to client devices only after checking that the policy has been complied with. The checks include both the identity of the user and the machine identity of the client device. The keys are held in a secure environment of the client device, for example in a Trusted Platform Module (TPM), and remain inaccessible at all times to the end user. Theft or loss of a portable client device does not result in any encrypted data being compromised since the keys needed to decrypt that data are not extractable from the secure environment.

Claim (Index 1):
A cryptographic method, comprising:\n generating a user-specific cryptographic key on a server; storing the user-specific cryptographic key, and policy data for controlling access to the user-specific cryptographic key, on the server; authenticating a user of a client device to the server; authenticating the client device to the server; processing the policy data on the server to determine whether the user is permitted to access the user-specific cryptographic key stored on the server; when permitted by the policy data, securely transmitting the user-specific cryptographic key from the server to the client device; and using the user-specific cryptographic key to perform a cryptographic operation on the client device without disclosing the user-specific cryptographic key to the user.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 98.0
- Lexical Diversity: 1.67532
- Patent Class: 713.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13521674', '13748797', '14218897', '15593249', '15017290']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.3897742523092909
- 35 USC 102 Novelty (BERT): 0.5301155044807704
- Combined Prediction Score: 0.4038083775264389
- Mean Citation Score: 243.524716
- Max Citation Score: 360.3599
- Similarity Product: 301.92227068814634

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

Dataset: test