Secure data processing

1. A computer-implemented method comprising:

receiving first encrypted data representing at least one event;

receiving second encrypted data representing the at least one event;

receiving condition data representing a condition corresponding to at least one outlier of the at least one event;

processing the first encrypted data and the second encrypted data to determine combined data;

sending first data corresponding to the combined data;

sending second data corresponding to the condition data;

receiving a first indication that a first value of the combined data satisfies the condition;

based at least in part on receiving the first indication, sending third data corresponding to the first encrypted data;

receiving a second indication that a third value of the first encrypted data satisfies the condition; and

determining that the first encrypted data corresponds to the at least one outlier.

2. The computer-implemented method of claim 1 , wherein the first encrypted data and second encrypted data are encrypted using first public key data.

3. The computer-implemented method of claim 2 , wherein the combined data is decryptable using private key data associated with the first public key data.

4. The computer-implemented method of claim 2 , wherein the condition data is encrypted using the first public key data.

5. The computer-implemented method of claim 1 , wherein the combined data is further based at least in part on third encrypted data.

6. The computer-implemented method of claim 1 , wherein the condition corresponds to a value of the combined data being greater than a threshold value.

7. The computer-implemented method of claim 1 , further comprising:

receiving third encrypted data representing a number of events; and

determining that the number equals a predetermined number.

8. The computer-implemented method of claim 1 , further comprising:

subtracting the first data from the second data to determine encrypted difference data; and

decrypting, using private-key data corresponding to first public-key data, the encrypted difference data to determine difference data,

wherein the first indication is based at least in part on the difference data.

9. The computer-implemented method of claim 1 , further comprising:

receiving third encrypted data representing the at least one event;

receiving fourth encrypted data representing the at least one event; and

determining that a sum of the third encrypted data and the fourth encrypted data is less than a threshold.

10. The computer-implemented method of claim 9 , further comprising:

determining a second sum based at least in part on the sum and the first encrypted data; and

multiplying the second sum by a number between 0.0 and 1.0 to determine the threshold.

11. A system comprising:

at least one processor; and

at least one memory including instructions that, when executed by the at least one processor, cause the system to:

receive first encrypted data representing at least one event;

receive second encrypted data representing the at least one event;

receive condition data representing a condition corresponding to at least one outlier of the at least one event;

process the first encrypted data and the second encrypted data to determine combined data;

send first data corresponding to the combined data;

send second data corresponding to the condition data;

receive a first indication that a first value of the combined data satisfies the condition;

based at least in part on receiving the first indication, send third data corresponding to the first encrypted data;

receive a second indication that a third value of the first encrypted data satisfies the condition; and

determine that the first encrypted data corresponds to the at least one outlier.

12. The system of claim 11 , wherein the first encrypted data and second encrypted data are encrypted using first public key data.

13. The system of claim 12 , wherein the combined data is decryptable using private key data associated with the first public key data.

14. The system of claim 12 , wherein the condition data is encrypted using the first public key data.

15. The system of claim 11 , wherein the combined data is further based at least in part on third encrypted data.

16. The system of claim 11 , wherein the condition corresponds to a value of the combined data being greater than a threshold value.

17. The system of claim 11 , wherein the at least one memory further includes instructions, that, when executed by the at least one processor, further cause the system to:

receive third encrypted data representing a number of events; and

determine that the number equals a predetermined number.

18. The system of claim 11 , wherein the at least one memory further includes instructions, that, when executed by the at least one processor, further cause the system to:

subtract the first data from the second data to determine encrypted difference data; and

decrypt, using private-key data corresponding to first public-key data, the encrypted difference data to determine difference data,

wherein the first indication is based at least in part on the difference data.

19. The system of claim 11 , wherein the at least one memory further includes instructions, that, when executed by the at least one processor, further cause the system to:

receive third encrypted data representing the at least one event;

receive fourth encrypted data representing the at least one event; and

determine that a sum of the third encrypted data and the fourth encrypted data is less than a threshold.

20. The system of claim 19 , wherein the at least one memory further includes instructions, that, when executed by the at least one processor, further cause the system to:

determine a second sum based at least in part on the sum and the first encrypted data; and

multiply the second sum by a number between 0.0 and 1.0 to determine the threshold.