Multi-bit cryptographically secure encryptor for M-ary spectral phase encoder optical code division multiple access
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United States of America Patent
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Mar 26, 2013
Grant Date -
Sep 22, 2011
app pub date -
Mar 16, 2010
filing date -
Mar 16, 2010
priority date (Note) -
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Abstract
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.
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