PATENT CLAIM ANALYSIS

Application Number: 15965463
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-11
Patent Classification: ["380", "277000"]

Abstract:
Disclosed is an orthogonal access control system based on cryptographic operations provided by multi-hop proxy re-encryption (PRE) that strictly enforces only authorized access to data by groups of users, scalable to large numbers of users. Scalable delegation of decryption authority can be shared with a plurality of members of a group whether those members be users or devices, and members of a group can further create sub groups and delegate decryption authority to those members, whether users or devices. Members are granted access via generation of transform keys, and membership or access can be revoked merely be deleting the transform key—no elimination of the encrypted data, regardless of its storage location, is needed.

Claim (Index 12):
The method of  claim 11 , further comprising:\n a. providing a sixth user; b. generating a public key and a private key for the sixth user; c. generating a transform key from the first group of users to the sixth user using the private key of the first group of users and the public key of the sixth user; d. providing a first device of the sixth user; e. generating a public key and a private key for the first device of the sixth user; f. generating a transform key from the sixth user to the first device of the sixth user; g. transmitting a request from a sixth user for access via a first device of the sixth user to the set of fifth ciphertexts, wherein the sixth user is a member of the first group of users; h. granting access to the sixth user by, on the server, locating an instance of the set of fifth ciphertexts that was encrypted to the first group of users, transforming the instance of the set of fifth ciphertexts that was encrypted to the first group of users using the transform key from the first group of users to the sixth user to form a fifth transformed ciphertext, then transforming the fifth transformed ciphertext using the transform key from the sixth user to the first device of the sixth user to form a fourth doubly-transformed ciphertext; and i. decrypting the fourth doubly-transformed ciphertext using the private key of the first device of the sixth user to recover the second data.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 91.0
- Lexical Diversity: 1.65333
- Patent Class: 380.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15588614', '11193227', '13477306', '13763631', '15185575']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4467935542012993
- 35 USC 102 Novelty (BERT): 0.5068107075677091
- Combined Prediction Score: 0.4527952695379403
- Mean Citation Score: 269.208104
- Max Citation Score: 289.68906
- Similarity Product: 197.6418527614188

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