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Pairings can be used for all kinds of advanced cryptographic schemes such as Encryption (Identity-based, Attribute-based, Predicate-based, etc.), Signatures, Zero-Knowledge Proofs, etc. It is in no particular order.
In Git you can add a submodule to a repository. This is basically a
repository embedded in your main repository. This can be very
useful. A couple of usecases of submodules:
Separate big codebases into multiple repositories.
Add current merkle root to records and allow signature only on record. This can better support cold key storage.
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This gist outlines a method to embed a secret message within a LaTeX document through the use of variable length spaces, ultimately rendered in a PDF. This technique is a form of steganography, allowing information to be hidden in plain sight, with the secret message being undetectable to casual observation.
Generating the LaTeX File with a Secret Message
The first step involves creating a Python script that processes a given text (the content of the LaTeX file) and a secret message. This script converts the secret message into a binary string, where each bit (0 or 1) corresponds to a specific spacing in the LaTeX document. The spaces are not uniform; 0 might correspond to a smaller space, while 1 corresponds to a larger space. This variation in spacing is subtle and typically unnoticed by readers, but it can be used to encode binary data.
Below is a simplified version of the Python script that generates a LaTeX file embedding a secret message:
A handy illustration of converting between String, Text and ByteString in Haskell
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