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README.md

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#Self-updater for uTox downloads signed updates from dl.utox.org

#How it works

  1. Builds are made locally and signed with libsodium's crypto_sign_ed25519() and my secret signing key then uploaded to dl.utox.org

  2. Updater reads the latest version (dl.utox.org/version), if it already has this version it skips to last step

  3. Downloads dl.utox.org/OSARCH-latest over http (ex: win64-latest for windows 64 bit)

  4. Uses libsodium's crypto_sign_ed25519_open() using my public signing key (88905F2946BE7C4BBDECE467149C1D7848F4BC4FEC1AD1AD6F97786EFEF3CDA1) to verify the build

  5. Checks the 4 byte timestamp to verify that the build is not expired (1 week)

  6. Decompresses the build, writes it to a file

  7. Run the file

#Adding and modifiying resources

  • The resource.rc file contains the main dialog definition, default icon, and mainfest that enables visual styles.
  • Use ResEdit to open and modify it.

#Building

  • requires mingw-w64
  • requires libsodium 1.0.0 (github, binary releases)
  • on windows use build.bat
  • on linux use build.sh

#Todo

  • Remove libsodium dependency