http://www.faqs.org/rfcs/rfc1217.html - полное описание.

особо понравилось:

...

5. Options for Further Reducing Effective Throughput



(a) Anti-Huffman Coding. The most frequent symbol is

assigned the longest code, with code lengths reducing with

symbol probability.



(b) Minimum likelihood decoding. The least likely

interpretation of the detected symbol is selected to

maximize the probability of decoding error.



(c) Firefly cryptography. A random signal (mason jar full of

fireflies) is used to encipher the transmitted signal by

optical combining. At the receiving site, another jar of

fireflies is used to decipher the message. Since the

correlation between the transmitting and receiving firefly

jars is essentially nil, the probability of successful

decipherment is quite low, yielding a very low effective

transmission rate.

...

А анти-хаффман - это руль! В случае столкновения двух пакетов шансы выжить будут у того, в котором встречаются самые распространенные символы :)
Правда, он может дойти несколько fragmented...

это так называемые первоапрельские rfc, так что фотошоп

ReichFuhrerCom.