Private key from uTox.exe profile - tox_save.tox

[username1565]

After first running uTox.exe, there, in \Tox\-folder, is created tox_save.tox.
Anyone can open this file, as hex, by using Hex-editor.

After start uTox.exe, when this file is exists, the ToxID is static in the Settings, and first 32 bytes from hexadecimal value of this ToxID - this is NaCl-publicKey.
Another 4 bytes of ToxID, (8 hex characters) - this is NoSPAM-number, and 2Bytes XOR Checksum.

This 32-bytes publicKey value is exists in the hex of tox_save.tox,
and after this value, there is contains generated NaCl box-secretKey (next 32 more bytes).

After encoding this hexadecimal as base64, here: https://username1565.github.io/brainwallet.github.io/#converter
this keyPair can be used for encryption/decryption,
and moreover - for sign/verify the digital signatures for the messages,
here: https://username1565.github.io/nanoboard-javascript-captcha/index.html#/sign

Maybe, need to add the ability to show secretKey,
the ability to change this, regenerate publicKey (ToxID), after changing,
and rewrite this data inside tox_save.tox.

Also, maybe, will be better to unlock the hardcoded bootstrap-nodes, and add the ability to specify this, and change to the custom nodes, and do this without any re-compilations.
Any computer with runned uTox, can be the node and bootstrap-node,
after port-forwarding, and publicKey of this contains in the first 32-bytes of generated ToxID.