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is an open implementation of a verification scheme based on 2D barcodes.\n\n\nGetting Started\n---------------\n\nInstall and setup Caurus:\n```bash\n$ pip install caurus\n$ caurus server init\n```\n\nEach device needs to be activated first. In our case, we assign the (arbitrary) ID 1 and set a SVG viewer (e.g. a browser) to automatically display the barcodes:\n```\n$ caurus server activate --viewer firefox 1\n```\nTo complete the activation, add the displayed keys to `caurus.cfg`.\n\nAfterwards, your are ready to verify arbitrary messages. 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