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Cake day: August 2nd, 2023

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  • The -k argument on my openssl accepts a passphrase, not a file. You likely encrypted with the filename as the secret, not it’s contents. Perhaps you should use -kfile instead.

    $ openssl aes-256-cbc -help
    Usage: aes-256-cbc [options]
    
    General options:
     -help               Display this summary
     -list               List ciphers
     -ciphers            Alias for -list
     -e                  Encrypt
     -d                  Decrypt
     -p                  Print the iv/key
     -P                  Print the iv/key and exit
     -engine val         Use engine, possibly a hardware device
    
    Input options:
     -in infile          Input file
    ** -k val              Passphrase**
     -kfile infile       Read passphrase from file