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README.md

vcrypt GoDoc Build Status

A toolkit for multi-factor, multi-role encryption.

Overview

vcrypt is a toolkit for building & executing multi-factor encryption schemes. It supports a mulit-role encryption workflow: an expert user crafts an encryption plan distributed to a novice user for safe, reliable encryption.

Install

    $ go get github.com/vcrypt/vcrypt/cmd/vcrypt

Commands

    $ vcrypt help
    > usage: vcrypt <command> [<args>]
    >
    > The vcrypt commands are:
    >   build   Build plan file from plan config
    >   export  Export material data
    >   import  Import material data
    >   inspect Inspect vault, plan, or material data
    >   lock    Encrypt data to a vault
    >   unlock  Decrypt data from a vault

Artifacts

  • plan: encodes each step (node) in a multi-factor encryption scheme. Steps are arranged into a directed acyclic graph with a single root step. Each node is either a cryptex, secret, or material. Plans may be sealed. They contain no secret information and are safe to distribute publicly.

  • vault: holds a plan, the ciphertext for the protected data, and intermediate (non-secret) material required for decryption. There is no unencrypted secret data in the vault artifact. The lock command creates a vault which can be decrypted with the unlock command.

  • material: the serialized input/output of a node for a vault. Secret material data is stored in the database, non-secret data may be stored as part of the vault. Allows sharing of solutions to nodes (secret data) between users with the import & export command.

Reference

  • cryptex: the combination of an encryption construct (like Shamir's Secret Sharing, NaCl's secretbox, or OpenPGP public key encryption) along with any required configuration (public keys, m-of-n values). A cryptex node is a single factor in a multi-factor encryption scheme.

  • seal: a digital signature combined with the cryptographic material needed to verify the signature (e.g. a public key).

  • secret: the sensitive input data required to lock and/or unlock a single cryptex.

Examples

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Toolkit for multi-factor, multi-role encryption

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