• Title : "Secure OCDM transmission using a planar multi-port encoder/decoder,"
• Author : G.Cincotti, G.Manzacca, V.Sacchieri, X.Wang, N.Wad, and K.Kitayama,
• Journal : IEEE/OSA J. Lightwave Technol., Vol.36, No.13, pp.1798-1806, 2008
• Abstract: We present different optical secure point-to-point (P2P) transmission schemes using a planar multi-port encoder/ decoder. We consider both bit- and block-cipher cryptography: in the first case, each bit (both mark and space) from each user is encoded in a two-key optical code division multiplexing (OCDM) signal. Block-cipher cryptography encodes a stream of n bits into a single code, and corresponds to optical Mary transmission. We demonstrate that block-ciphers are more secure, with respect to bit-ciphers schemes, also against knownplaintext and chosen-plaintext attacks.
• Keywords :

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