System architecture and method of processing data therein

A computing system architecture, comprising:

• a first node (A) having a first dataset (xA);
• a second node (B) having a second dataset (xB), wherein xB is unknown to A and xA is unknown to B, and wherein A is in communication with B;
• a server (S) in communication with A and B;
• A including a first processor and B including a second processor,
• the first and the second processors each having software encoded on a non-transitory computer readable medium configured to:
• additively split each member of their respective datasets into corresponding shares;
• share the corresponding shares with one another;
• arrange the corresponding shares according to a mutually agreed predetermined order into corresponding ordered shares;
• shuffle the ordered shares into shuffled shares;
• re-split the shuffled shares into re-split shuffled shares;
• and
• perform an ordered statistical operation on the re-split shuffled shares, wherein the steps of shuffle and re-split is based on additions, subtractions but not multiplication and division.