On: I was forced to write a blog post. So I made a code breaking contest.

[vankap]

I am working on the assumption that the first few chars could be a randomly generated salt and the rest is equal sized blocks of encrypted content. The random salt results in a different encoding each time.

This is what I have so far and it seems to fit the original encoded message too.

The salt is the first 29 chars.

Each encrypted block is 59 chars.

So for the QBFs : 29 + 6x59

For the original message : 29 + 5x59

[vankap → vankap]

Note: I have never come across such sizes for salt and block though. I may be totally off.

[lim_nick → vankap]

Here are some numbers for this approach. Here are another two QBFs

SALT: [52, 43, 58, 74, 44, 86, 86, 43, 33, 39, 46, 49, 77, 44, 52, 74, 84, 44, 51, 78, 53, 75, 52, 69, 40, 50, 47, 73, 82] BLOCKS: [40, 60, 54, 90, 67, 38, 60, 56, 60, 51, 50, 51, 42, 70, 83, 65, 83, 58, 53, 65, 61, 45, 47, 36, 78, 55, 33, 71, 57, 81, 33, 87, 64, 52, 67, 51, 72, 59, 53, 78, 62, 72, 55, 42, 78, 45, 84, 72, 79, 68, 43, 41, 62, 68, 40, 64, 84, 39, 86] [60, 57, 34, 69, 69, 89, 89, 50, 44, 73, 63, 60, 66, 46, 81, 81, 74, 71, 34, 77, 82, 89, 78, 85, 50, 63, 72, 83, 68, 52, 60, 58, 36, 52, 49, 46, 69, 49, 77, 90, 59, 68, 39, 43, 64, 84, 63, 45, 75, 56, 43, 37, 46, 73, 36, 46, 73, 74, 59] [33, 77, 36, 85, 77, 79, 66, 40, 65, 49, 41, 49, 87, 66, 52, 60, 85, 66, 71, 77, 39, 37, 60, 74, 61, 51, 47, 82, 34, 66, 35, 64, 61, 34, 54, 34, 52, 87, 46, 58, 55, 82, 65, 66, 82, 54, 89, 41, 42, 61, 57, 73, 33, 82, 45, 56, 70, 68, 55] [84, 79, 45, 55, 61, 76, 49, 62, 66, 48, 44, 82, 80, 71, 52, 65, 72, 39, 77, 57, 49, 42, 83, 64, 54, 52, 66, 66, 34, 72, 49, 59, 36, 51, 81, 70, 32, 53, 60, 71, 80, 51, 54, 36, 39, 87, 68, 77, 87, 79, 63, 90, 37, 64, 42, 86, 89, 43, 68] [49, 43, 32, 58, 33, 62, 44, 76, 59, 64, 57, 56, 33, 46, 48, 36, 48, 66, 57, 58, 52, 88, 59, 65, 90, 80, 69, 73, 54, 74, 64, 44, 40, 90, 72, 53, 87, 62, 90, 58, 46, 61, 37, 35, 46, 72, 59, 88, 42, 89, 45, 79, 51, 74, 45, 84, 45, 89, 83] [54, 39, 63, 85, 70, 35, 44, 89, 61, 48, 35, 88, 67, 63, 50, 35, 55, 47, 34, 89, 56, 35, 55, 85, 50, 71, 85, 79, 35, 70, 35, 84, 33, 62, 48, 33, 81, 55, 86, 79, 72, 49, 69, 69, 84, 46, 70, 61, 73, 66, 62, 55, 89, 85, 61, 35, 47, 86, 86]

SALT: [51, 56, 44, 77, 43, 83, 68, 71, 56, 36, 41, 86, 55, 43, 48, 54, 37, 49, 46, 69, 32, 90, 43, 73, 66, 53, 84, 75, 54] BLOCKS: [49, 86, 77, 59, 56, 60, 37, 32, 76, 88, 51, 80, 44, 51, 74, 56, 61, 38, 71, 67, 54, 58, 45, 74, 43, 65, 85, 80, 63, 54, 55, 87, 88, 53, 75, 81, 89, 69, 75, 80, 90, 50, 90, 37, 79, 64, 41, 41, 70, 50, 74, 75, 49, 75, 67, 44, 72, 50, 66] [76, 75, 60, 86, 32, 71, 49, 73, 53, 40, 52, 85, 59, 39, 89, 57, 34, 85, 39, 56, 54, 47, 34, 65, 66, 71, 37, 76, 70, 73, 46, 83, 54, 60, 79, 46, 86, 67, 39, 54, 71, 44, 34, 74, 64, 60, 77, 71, 44, 48, 60, 58, 71, 43, 73, 86, 67, 77, 45] [60, 67, 37, 68, 61, 70, 83, 77, 52, 76, 78, 32, 34, 47, 78, 40, 72, 72, 53, 62, 62, 85, 72, 51, 48, 73, 33, 52, 49, 36, 32, 85, 33, 35, 54, 45, 64, 63, 82, 75, 69, 53, 39, 89, 47, 63, 50, 38, 55, 90, 75, 89, 81, 53, 37, 61, 72, 32, 34] [39, 32, 85, 83, 82, 48, 70, 37, 62, 83, 82, 67, 52, 38, 90, 35, 47, 60, 54, 82, 88, 35, 75, 63, 64, 76, 58, 60, 54, 35, 59, 70, 80, 46, 63, 76, 48, 35, 41, 49, 43, 40, 81, 40, 38, 47, 71, 84, 40, 73, 47, 49, 45, 69, 81, 78, 57, 72, 59] [69, 39, 54, 44, 72, 39, 86, 75, 35, 75, 86, 32, 39, 50, 68, 34, 49, 79, 83, 66, 80, 57, 40, 84, 43, 70, 63, 58, 35, 82, 40, 70, 81, 47, 83, 50, 64, 63, 42, 78, 63, 68, 47, 73, 86, 72, 56, 89, 72, 36, 64, 59, 35, 62, 88, 76, 68, 49, 60] [86, 37, 40, 74, 74, 67, 72, 46, 41, 69, 79, 85, 44, 58, 56, 44, 69, 38, 55, 59, 76, 59, 87, 55, 60, 76, 43, 51, 90, 36, 77, 45, 70, 39, 84, 44, 71, 70, 43, 82, 48, 65, 32, 90, 42, 50, 46, 64, 90, 71, 83, 60, 80, 78, 52, 52, 71, 39, 69]