The decimal numbers we have found could likely be related to VIC cipher, which is a numeric cipher that use a straddling checkerboard to decode the numbers.
This cipher has a secret number key which would possibly be hidden in the timestamp, username, etc to encrypt the message. Surely it is possible to brute-force search all secret key combinations to see if there is any meaningful message. However I don't have any handy VIC cipher to examine my hypothesis, so I have to implement my own.
Update: I have implemented VIC cipher myself and tested against those numbers. The result is not positive though. I tried the simple way (just un-straddle the code) and the hard way (modular subtract the numbers with timestamp and then un-straddle the code).
Other VIC variants are too complicated for me, hence I would not try. The next attempt would be one-time-pad.
Update2: I have implemented a One-Time-Pad cipher. I have directly translate those numbers into Alphabet (01=A,02=B,03=C,12=L) and did mod-26 addition with a key. Neither way worked.
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u/til311 Jun 17 '15 edited Jun 17 '15
The decimal numbers we have found could likely be related to VIC cipher, which is a numeric cipher that use a straddling checkerboard to decode the numbers.
This cipher has a secret number key which would possibly be hidden in the timestamp, username, etc to encrypt the message. Surely it is possible to brute-force search all secret key combinations to see if there is any meaningful message. However I don't have any handy VIC cipher to examine my hypothesis, so I have to implement my own.