Google Git
Sign in
chromium / chromium / src / main / . / components / metrics / private_metrics
tree: c304b4803f2c9599a276b680a3cb5fb690595612 [path history] [tgz]
  1. mojom/
  2. BUILD.gn
  3. data_upload_config_downloader.cc
  4. data_upload_config_downloader.h
  5. data_upload_config_downloader_unittest.cc
  6. DEPS
  7. dkm_entry_builder.cc
  8. dkm_entry_builder.h
  9. dkm_entry_builder_base.cc
  10. dkm_entry_builder_base.h
  11. dkm_entry_builder_unittest.cc
  12. dkm_recorder.cc
  13. dkm_recorder.h
  14. OWNERS
  15. private_metrics_pref_names.cc
  16. private_metrics_pref_names.h
  17. private_metrics_reporting_service.cc
  18. private_metrics_reporting_service.h
  19. private_metrics_unsent_log_store_metrics.cc
  20. private_metrics_unsent_log_store_metrics.h
  21. README.md
components/metrics/private_metrics/README.md

Overview

Private Metrics is a comprehensive system that encompasses both the Deidentified Web Analytics (DWA) and the Domain Keyed Metrics (DKM). The purpose of Private Metrics is to offer anonymization solutions primarily for Chrome Metrics. It is designed for sensitive metrics that require privacy guarantees beyond what existing systems UMA/UKM provide. Private Metrics does this by leveraging the use of trusted execution environments (TEEs) and employing anonymization workloads like k-anonymity and trusted proxy.

The Private Metrics system is composed of the following components:

  • DwaBuilder / DkmBuilder: The builder interface exposes an interface metrics owners and developers can use to build metric entries.
  • DwaEntryBuilder / DkmEntryBuilder: The builder interface exposes an interface metrics owners and developers can use to build metric entries where it is not feasible to use DwaBuilder / DkmBuilder. More information can be found in “components/metrics/dwa/dwa_entry_builder_base.h” and “//components/metrics/private_metrics/dkm_entry_builder_base.h”, respectively.
  • DwaRecorder / DkmRecorder: The recorder accepts entries from DwaEntryBuilder/DkmEntryBuilder respectively and records the metrics in memory.
  • PrivateMetricsService: The private metrics service is responsible for generating and encrypting reports from in-memory events collected in DwaRecorder and DkmRecorder, storing reports to disk, and scheduling reports for upload.
  • PrivateMetricsReportingService: This service is responsible for reporting reports collected in PrivateMetricsService to Google's servers.

For more information, see: go/private-metrics (internal only).