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command-lineencryptionblowfish

Best Blowfish command line tool?

Our application needs to encrypt/decrypt files using (for instance) Blowfish encryption algorithm. We know bcrypt could be a good choice, but it cannot be called directly from our application (as it prompts for key phrase).

Which is the best existing option?

We prefer a Windows tool, though Linux would be good as well.

Solution

  • http://www.openssl.org/docs/crypto/blowfish.html programming interface

    http://www.openssl.org/docs/apps/enc.html command line interface

    Example: 

    openssl enc -base64 -e -bf-cbc -in <infile> -out <outfile> -kfile <passphrase file>

    (replace -e with -d to decrypt)