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data_type_definitions.md

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Data structure definitions

This file contains a non exhaustive list of descriptions for different data structures used for communication.

Authorization token

The authorization token is used to provide all necessary information + authorization for a device to be added to a users account. It consists of

  • A token - used for authorizing the device
  • the users uuid - used for identification of the user
  • the users public key - used to encrypt the data stored on the server
  • the users email - used to display in the configured users section
  • the checksum is a argon2id hash since we cant use the browsers implementation of sha-256 in the webinterface of a device. It is computed with a empty salt with the size of 8, 19 MB Memory, time 2 and parallelism 1 parameters.

The token is base58 encoded using ther FLICKR-alphabet and structured as followed:

Name Authorization User uuid User public key User email Checksum
Size 32 Bytes 36 Bytes 32 Bytes Variable 32 Bytes