Basically there are two types of ciphertext, shifted-frequency and flat-frequency.
shifted-frequency, this is similar to simple substitution output which will have a misaligned distributed frequency of charectors. For instance the letter 'e' is used 13% of the time. Once the text is enciphered, the result may have the letter 'x' used 23% of the time. This type of encryption can be spotted (and decrypted) with a well known "frequency analysis" attack.
flat-frequency, this is similar to DES output which all the charectors have equal distribution. There are the same amount of A's as there are B's and C's... although this can also be spotted using the same frequency analysis attack, it doesnt lend any clues which can be used to decipher it.
What Delta-sys proposes is making an encryption system that outputs a ciphertext that matches a the english frequency, thus making it harder for automanous filters to detect quickly.
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Another idea generated by delta-sys.
Basically there are two types of ciphertext, shifted-frequency and flat-frequency.
shifted-frequency, this is similar to simple substitution output which will have a misaligned distributed frequency of charectors. For instance the letter 'e' is used 13% of the time. Once the text is enciphered, the result may have the letter 'x' used 23% of the time. This type of encryption can be spotted (and decrypted) with a well known "frequency analysis" attack.
flat-frequency, this is similar to DES output which all the charectors have equal distribution. There are the same amount of A's as there are B's and C's... although this can also be spotted using the same frequency analysis attack, it doesnt lend any clues which can be used to decipher it.
What Delta-sys proposes is making an encryption system that outputs a ciphertext that matches a the english frequency, thus making it harder for automanous filters to detect quickly.