PATENT CLAIM ANALYSIS

Application Number: 15890900
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["380", "285000"]

Abstract:
Embodiments of the present invention disclose a key exchange method and apparatus, which relate to the communications field, and can enable user equipments establishing a D2D link to share a set of keys, and further, information security can be achieved when a user equipment transmits service data or a signaling message through a Ud interface. A network device acquires a first key, and sends a message including the first key to a second user equipment, so that the second user equipment uses, when communicating with a first user equipment by using a D2D link, the first key to protect transmitted information. Embodiments of the present invention are applicable to an exchange process of keys for protecting data on a D2D link.

Claim (Index 8):
The apparatus according to  claim 7 , wherein\n the processor is configured to:\n acquire a second key, wherein the second key is a shared key between the apparatus and the first user equipment; and \n generate the first key according to the second key and a first parameter by using a key derivation function; and \n the first parameter comprises a random number generated by the processor.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 88.0
- Lexical Diversity: 1.91304
- Patent Class: 380.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['11618537', '15070678', '15139749', '11776421', '11776396']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4400299001186244
- 35 USC 102 Novelty (BERT): 0.4730409011598526
- Combined Prediction Score: 0.4433310002227473
- Mean Citation Score: 183.325652
- Max Citation Score: 188.08527
- Similarity Product: 142.87379447963838

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