An encoding device which performs compression, FEC and encryption, in that order

摘要

An encoding device for a crypto system comprises a data compression stage (7) to compress data; a forward error coding stage (8) to apply forward error correction to the data; an encryption stage (9) to encrypt the data and an output to output the data for onward transmission, wherein the compression and forward error coding stages are combined and applied to plaintext data. A corresponding decoding device is also claimed.