PATENT CLAIM ANALYSIS

Application Number: 16024072
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-02
Patent Classification: ["711", "133000"]

Abstract:
A system may include a processor and a memory, the processor having at least one cache. The cache may include a plurality of sets, each set having a plurality of cache lines. Each cache line may include several bits for storing information, including at least a “shared” bit to indicate whether the cache line is shared between different processes being executed by the processor. The example cache may also include shared cache line detection and eviction logic. During normal operation, the cache logic may monitor for a context switch (i.e., determine if the processor is switching from executing instructions for a first process to executing instructions for a second process). Upon a context switch, the cache logic may evict the shared cache lines (e.g., the cache lines with a shared bit of 1). Due to the nature of cache-timing side-channel attacks, this eviction of shared cache lines may prevent attackers utilizing such attacks from gleaning meaningful information.

Claim (Index 11):
The method of  claim 10 , wherein the responsive to a determination that a context switch has occurred, evicting, via the cache monitoring and eviction logic, one or more of the subset of cache lines comprises:\n responsive to a determination that a context switch has occurred:\n selecting, from the subset of cache lines via the cache monitoring and eviction logic based on the active security policy, one or more cache lines to evict; and \n evicting, via the cache monitoring and eviction logic, the selected cache lines.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 94.0
- Lexical Diversity: 2.09412
- Patent Class: 711.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14671411', '13167773', '12223173', '12358873', '12819348']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5409849661311817
- 35 USC 102 Novelty (BERT): 0.4650590158005296
- Combined Prediction Score: 0.5333923710981165
- Mean Citation Score: 179.4468
- Max Citation Score: 185.43217
- Similarity Product: 153.7638202803594

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