RSAMessageConverter

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Converts strings or binary to a number and visa versa for the sake of working with RSA.

Usage

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python3 convertmessage.py [-h] [--cipher | --uncipher] [--message MESSAGE | --file FILE] [--binary] [--out OUT] [--encoding ENCODING]

optional arguments:
  -h, --help           show this help message and exit
  --cipher             convert from plain to cipher
  --uncipher           convert from cipher to plain
  --message MESSAGE    message to perform conversion on
  --file FILE          file to perform conversion on
  --binary             specify that the message is binary
  --out OUT            file to output to. Required when unciphering to binary
  --encoding ENCODING  default is ascii

Examples

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Convert message to number

python3 convertmessage.py --cipher --message "Rosetta Code"
# Cipher: 25512506514985639724585018469

Convert number to message

python3 convertmessage.py --uncipher --message 25512506514985639724585018469                                                                                                                                                                                                                                       2 ⨯
# Rosetta Code

Convert binary file to number

python3 convertmessage.py --cipher --file pic.png --binary 
# Cipher: 14725267986073729673605561729446055850512790630226246458370820124918558223...

Convert number to binary file

python3 convertmessage.py --uncipher --binary --out out.png --message 14725267986073729673605561729...

Todo

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• Add padding functionality