7. A system, comprising a first computerized entity for: receiving 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.
7. A system, comprising a first computerized entity for: receiving 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. 8. The system according to claim 7 wherein the first computerized entity supports a software as a service application.