Verifiable secure dataset operations with private join keys

Abstract

To performing a join operation, a module executing in a trusted execution environment (TEE) receives a first dataset including personal identifiable information (PII) data and non-PII data from a first-party (1P) data source. The module pre-processes the PII data to generate first formatted PII data, the first formatted PII data conforming to a predefined format: matches, in the TEE, the first formatted PII data to second formatted PII data included in a second dataset: performs a join operation between the first dataset and the second dataset based on the matching, to generate a joined dataset: and provides, to a data service operating independently of the 1P data source, the joined dataset.

Dependencies are inferred from the claim text.