MULTI-BIT CRYPTOGRAPHICALLY SECURE ENCRYPTOR FOR M-ARY SPECTRAL PHASE ENCODER OPTICAL CODE DIVISION MULTIPLE ACCESS

摘要

A system and methods are provided for transmitting an encrypted data word of two or more bits. This involves Identifying a random key word comprising two or more bits for encrypting the data word and identifying a set of unique orthogonal codes. This also involves selecting a code from the set of unique orthogonal codes that corresponds to a result of an exclusive-or (XOR) operation between the two or more bits of the data word and the random key word. This also involves encoding a signal with the code and transmitting the encoded signal as encrypted data.