Computer program product and method for order preserving symbol based encryption

摘要

A method for processing symbols by a first computerized entity, the method may include receiving, by a first computerized entity and over a communication network, text that comprises multiple random tokens and a plurality of plaintext symbols; wherein the multiple random tokens are generated by a second computerized entity; wherein a value of each random token that represents a plaintext symbol is responsive to values of random tokens that represents plaintext symbols that have a lower lexicographic value than the plaintext symbol; and processing the text by the first computerized entity.

主权项

1. A method for processing symbols by a first computerized entity, the method comprising:
receiving, by a first computerized entity and over a communication network, encrypted text that comprises multiple random tokens and a plurality of plaintext symbols; wherein the multiple random tokens are generated by a second computerized entity; wherein a value of each random token that represents a plaintext symbol is responsive to values of random tokens that represents plaintext symbols that have a lower lexicographic value than the plaintext symbol; and processing the encrypted text by the first computerized entity, wherein the processing is selected from a group consisting of sorting and searching.