PATENT CLAIM ANALYSIS

Application Number: 15935744
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["709", "223000"]

Abstract:
An encryption and decryption method in a virtualization system, where the virtualization system includes a virtual machine monitor (VMM) and an encryption and decryption virtual machine. The VMM includes a control module, the encryption and decryption virtual machine records a first association relationship between a hard disk image identifier and a key, the key includes an encryption key, and the virtualization system records a second association relationship between the hard disk image identifier and a hard disk image attribute. The control module in the VMM is configured to determine whether to-be-written data needs to be encrypted and forward the to-be-written data, which reduces system complexity of the VMM. In addition, encryption or decryption is processed without occupying a resource in the VMM.

Claim (Index 2):
The method according to  claim 1 , wherein the first association relationship further comprises an identifier of the user virtual machine, wherein the key further comprises a decryption key, and wherein the method further comprises:\n acquiring a read request from the user virtual machine; reading data from the hard disk image of the user virtual machine; acquiring the identifier of the user virtual machine, the read data, and the identifier of the hard disk image when the read data comprises the encrypted data; sending the identifier of the user virtual machine, the read data, and the identifier of the hard disk image to instruct the encryption and decryption virtual machine to decrypt the read data using the decryption key according to the first association relationship; and returning the decrypted data to the user virtual machine.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 90.0
- Lexical Diversity: 2.31034
- Patent Class: 709.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15637091', '15027963', '14320578', '12707004', '13550191']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.2564615460311768
- 35 USC 102 Novelty (BERT): 0.5684395611247075
- Combined Prediction Score: 0.2876593475405299
- Mean Citation Score: 259.958462
- Max Citation Score: 433.89236
- Similarity Product: 428.1867890105248

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