# Amateur cryptography: decrypting TVT CCTV camera config files

DevFeed: [Amateur cryptography: decrypting TVT CCTV camera config files](<https://devfeed.tech/articles/amateur-cryptography-decrypting-tvt-cctv-camera-config-files-20552.md>)

Original publisher: [Read original article](<https://yurichev.com/blog/TVT/>)

Published: 2026-06-28T22:00:00Z

Content type: tutorial

Language: en

Sources: [Dennis Yurichev](<https://devfeed.tech/sources/dennis-yurichev.md>)

Topics: [Cryptography](<https://devfeed.tech/topics/cryptography.md>), [Encryption](<https://devfeed.tech/topics/encryption.md>)

Tags: [camera](<https://devfeed.tech/tags/camera.md>), [cryptography](<https://devfeed.tech/tags/cryptography.md>), [encryption](<https://devfeed.tech/tags/encryption.md>)

## AI overview

This article examines the decryption of TVT CCTV camera configuration files. It describes testing all 2-byte XOR keys, identifying the key 29 15, and observing that tabs and newlines remain unencrypted, preserving visual structure and allowing some encrypted files to be compared with diff tools.

## Source excerpt

Amateur cryptography: decrypting TVT CCTV camera config files