Bit Message
The Bit Message is a message that is hidden within the lines of an octet stream and it is represented as a hexadecimal string which has maximum length of 149 octets. The first 9 octets of the message contain the header for the message and the rest comprise the content . The header contains 1 type octet, 7 timestamp octets, and 1 message length octet. The content contains a maximum of 140 octets and could be packed with either 7 bit, 8 bit or 16 bit. 7 bit packed messages have a length of 160 characters, 8 bit packed messages have a length of 140 characters, and 16 bit packed messages will only have a length of 70 characters.
Here are some details on the structure of a bit message:
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BIT MESSAGE FORMAT | |||||||||
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Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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Octet-nth |
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HEADER |
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TYPE |
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YEAR | |
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MONTH | |
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DAY | |
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HOUR | |
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MINUTE | |
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SECOND | |
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TIMEZONE | |
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LENGTH | |
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CONTENT |
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Octet-1 |
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...
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Octet-140 | |
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7-BIT PACKED MESSAGE | |||||||||
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Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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Octet-nth |
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1 | 0 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
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8-BIT PACKED MESSAGE | |||||||||
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Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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Octet-nth |
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1 | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
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16-BIT PACKED MESSAGE | |||||||||
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Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
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Octet-nth |
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1 | b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
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... | ||||||||||
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Become Awesome
- No Ads
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- More Content
CheckiO Extensions allow you to use local files to solve missions. More info in a blog post.
In order to install CheckiO client you'll need installed Python (version at least 3.8)
Install CheckiO Client first:
pip3 install checkio_client
Configure your tool
checkio --domain=py config --key=
Sync solutions into your local folder
checkio sync
(in beta testing) Launch local server so your browser can use it and sync solution between local file end extension on the fly. (doesn't work for safari)
checkio serv -d
Alternatevly, you can install Chrome extension or FF addon
checkio install-plugin
checkio install-plugin --ff
checkio install-plugin --chromium
Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.
