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Brandon Siegel on Hacking the Tassimo - Part 2: Breaking the Code

Taking S1-S5 as the binary data, the three drinks which have the same beverage volume (250ml) share the same 4-bit binary sequence in only one place:

columbian
64226 2
111110 1011 100010
BV 1101

cafe crema
44738 6
101011 1011 000010
BV 1101

cleaning
07879 5
000111 1011 000111
BV 1101

Interestingly, this matches the patent's table for a beverage volume of 250ml if read in little-endian (right to left). Going on this assumption, it fits the latte as well:

latte
63607 0
111110 0001 110111
BV 1000

Unfortunately it does not seem to match for the espresso or capuccino:

espresso
59459 2
111010 0001 000011 (this would call for a 150ml=5oz pull)
BV 0001 (2oz measured)

cappucino
63479 3
111101 1111 110111 (this would call for a 300ml=10oz pull)
BV 0110 or 0111 (4oz measured)

This is where I am at so far.

--Brandon

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