Described is a system for securely searching streaming data. The system executes a secure pattern matching protocol between a client and at least one of a server and a processing element. Using the processing element, an encryption of a character delay based on a pattern to be searched is received. Streaming data is received at the processing element. A secure search is performed blindly at the processing element to find a match for the pattern in the streaming data, the search being performed using the encryption of the character delay vector. Encrypted results from the secure search are sent back to the client.