TachiCrypt

An experimental cli tool to encrypt & decrypt files/directories.

Key Features • How To Use • Screenshots • How To Build • Roadmap • Changelog • License

Important right now this is an experimental project and the safety and stability isn't guaranteed!

Key Features

• Clean and straightforward CLI interface.
• Supports encryption of both files and directories (with recursive functionality).
• Pure Go implementation with no external dependencies.
• Utilizes AES GCM encryption, avoiding custom or insecure encryption schemes.
• Encrypts data into multiple segments, allowing distribution across various storage locations or transfer channels.
• Each encrypted segment is assigned a random name to enhance security.
• Individual encryption keys are used for each segment, ensuring robust protection.
• A single 'masterlock' file, encrypted with a user-provided password, is used to decrypt the segments. It securely stores the passkeys and the mapping of random filenames to the original sequence.
• The encrypted segments creation/modification timestamps are altered to further obscure the data sequence.

How to use

Encrypt

The following command is an example on how to encrypt. The password for the masterlock will be prompted interactively.

tachicrypt -hide -data /path/to/your/file/or/directory -output /path/to/where/ecnrypted/data/and/masterlock/should/be/stored -parts INT

• -hide: Indicates that the data should be encrypted.
• -data: Specifies the path to the file or directory to be encrypted.
• -output: Sets the directory where the encrypted parts and masterlock file will be stored.
• -parts: Determines the number of encrypted parts to create.

Decrypt

The following command is an example on how to decrypt. The password for the masterlock will be prompted interactively.

tachicrypt -unhide -data /path/to/your/encrypted/files/and/masterlock -output /path/to/where/the/decrypted/data/should/be/stored

• -unhide: Indicates that the data should be decrypted.
• -data: Specifies the path to the directory containing the encrypted parts and masterlock file.
• -output: Sets the directory where the decrypted data will be stored.

Help

You can always use

tachicrypt --help

to print information about the params and example commands for encrypting and decrypting.

Screenshots

Encryption

Decryption

How to build

To clone and run this application, you'll need Git and go installed on your computer. From your command line:

# Move to your GOPATH directory 
$ cd $GOPATH

# Create necessary directories
$ mkdir -p github.com/voodooEntity

# Move into the newly created directory
$ cd github.com/voodooEntity

# Clone this repository
$ git clone https://github.com/voodooEntity/go-tachicrypt.git

# Move to the client directory
$ cd go-tachicrypt/cmd/client

# Build the application
$ go build -o tachicrypt

# Copy the resulting binary into your gopath binary directory
$ cp tachicrypt $GOPATH/bin

After this steps you can use the command 'tachicrypt' on the cli wherever you are

Roadmap

At this point i want to repeat that this is an experimental project. I got no exact timeline or plans on when i will enhance this software. I probably gonne decide this based on if there is anyone interested and actually will be using it. So if you want me to further improve it - leave a star to let me know .)

• [x] Add Changelog
• [x] Adjust password input to not show the typed text
• [x] Cli output overhaul
• [x] Implement better error handling
• [x] Remove base64 as transport between zip and AES
• [ ] Reconsider the usage of zip as transport format
• [ ] Code cleanup
• [ ] Enhance the padding at the end of uneven last parts to use random data
• [ ] Enhance the strength of generated passkeys for encryption
• [ ] Implement a check to warn the user if the gathered random data is weak

Changelog

Notice: While in alpha, minor version updates may be breaking. While i will try to reduce the amount of breaking changes, it still may happen. When breaking changes are to be expected it will be informed about in the breaking versions changelog.

Check the Changelog

Latest Release Alpha 0.3.0

License

Apache License Version 2.0

laughingman.dev  ·  GitHub @voodooEntity