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command-line tool for creating and verifying distributed multi-party signatures.\n\nInstallation\n============\n\n::\n\n    $ pip install partysig\n\nUsage\n=====\n\nKey generation\n--------------\n\nOn one machine, run::\n\n    $ partysig keygen start [--size=N] [--threshold=K] [SOME LABEL]\n\nExample output::\n\n    Give one code to each participant:\n    - 5-recipe-adult\n    - 4-potato-gremlin\n    Waiting for participants  [####################################]  100%\n    Key generated!\n    Master key: MASTER_KEY\n\nOn the other machines, run::\n\n    $ partysig keygen join [SOME LABEL]\n\nExample output::\n\n    Enter code from Alice: 5-recipe-adult\n    Key generated!\n    Master key: MASTER_KEY\n\n    Enter code from Alice: 4-potato-gremlin\n    Key generated!\n    Master key: MASTER_KEY\n\nSigning\n-------\n\nOn the machine with the file to sign, run::\n\n    $ partysig sign start --key=MASTER_KEY FILE\n\nExample output::\n\n    Give one code to each participant:\n    - 1-aftermath-pheasant\n    - 2-document-framework\n    Waiting for signers  [####################################]  100%\n    Threshold reached!\n    Signature: SIGNATURE\n\nOn the other machines, run::\n\n    $ partysig sign join\n    Enter code from Alice: 1-aftermath-pheasant\n    Waiting for signers...\n    Threshold reached!\n    Signature: SIGNATURE\n\n    $ partysig sign join\n    Enter code from Alice: 2-document-framework\n    Waiting for signers...\n    Threshold reached!\n    Signature: SIGNATURE\n\nVerifying signatures\n--------------------\n\nRun::\n\n    $ partysig verify FILE SIGNATURE\n\nExample output::\n\n    Signature is valid!\n\nDesign\n======\n\nThe current signature version (v1) implements Bitcoin-style multi-sig, where the overall\nmultisignature contains:\n\n- The number of signatures required for the multisignature to be valid\n- The public keys allowed to create signatures\n- Signatures from a subset of those keys\n\nThe first two parts together are equivalent to a Bitcoin script, and are similarly hashed\nto get the \"master key\" for the multi-party signature group. Ed25519 is used for the\nindividual signatures, and BLAKE2b is used for creating the master key.\n\nSignature format\n----------------\n\n::\n\n    Version    (1-byte uint)     \\\n    Threshold  (1-byte uint)      |_ Hashed to obtain\n    Size       (1-byte uint)      |  the master key\n    Pubkeys    (32 x size bytes) /\n    Signatures (64 x threshold bytes)\n\nAcknowledgements\n================\n\n- `Joanna Rutkowska`_ asked `the question`_ that prompted the creation of this tool.\n- `Brian Warner`_ wrote `Magic Wormhole`_, which is a key component to this tool's usability.\n\n.. _`Joanna Rutkowska`: https://blog.invisiblethings.org/\n.. _`the question`: https://twitter.com/rootkovska/status/806553962770006019\n.. _`Brian Warner`: http://www.lothar.com/\n.. _`Magic Wormhole`: https://github.com/warner/magic-wormhole\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstr4d%2Fpartysig","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fstr4d%2Fpartysig","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fstr4d%2Fpartysig/lists"}