Protecting membership and data in a secure multi-party computation and/or communication

A secure multi-party computation and communication system, the system comprising:

• a memory to store a first dataset;
• a processor to:
• generate a padding dataset, a size of the padding dataset being determined based on a data privacy configuration;
• up-sample the first dataset with the padding dataset by inserting elements of the padding dataset and random elements into the first dataset;
• transform the first dataset;
• dispatch the first dataset;
• perform an intersection operation based on the first dataset and a second dataset to generate a third dataset;
• generate a first share based on the third dataset;
• and
• construct a result based on the first share and a second share,
• wherein the first dataset includes a first identification field and a second identification field, the first identification field having a higher priority than the second identification field, and
• wherein the second dataset includes a third identification field and a fourth identification field, the third identification field having a higher priority than the fourth identification field.

A non-transitory computer-readable medium having computer-executable instructions stored thereon that, upon execution, cause one or more processors to perform operations comprising:

• generating a padding dataset, a size of the padding dataset being determined based on a data privacy configuration;
• up-sampling a first dataset with the padding dataset by inserting elements of the padding dataset and random elements into the first dataset;
• transforming the first dataset;
• dispatching the first dataset;
• performing an intersection operation based on the first dataset and a second dataset to generate a third dataset;
• generating a first share based on the third dataset;
• and
• constructing a result based on the first share and a second share,
• wherein the first dataset includes a first identification field and a second identification field, the first identification field having a higher priority than the second identification field, and
• wherein the second dataset includes a third identification field and a fourth identification field, the third identification field having a higher priority than the fourth identification field.