CryptoKitCLI

Take Apple CryptoKit to the command line and perform cryptographic operations securely and efficiently.

🌟 Features

✅ Create or validate UUID (universally unique value).

✅ Perform cryptographically secure hashing (SHA-2 hash with 512, 384 or 256-bit digest).

✅ Create or validate HMAC (hash message authentication).

✅ Crypt and decrypt using AES-GCM cipher.

✅ Crypt and decrypt using ChaCha20-Poly1305 cipher.

✅ Symmetric key auto-hash to SHA-256 if needed.

🚧 X25519 key agreement and ed25519 signatures.

🚧 NIST P-521 signatures and key agreement.

🚧 NIST P-384 signatures and key agreement.

🚧 NIST P-256 signatures and key agreement.

🐒 Usage

Simply run:

$ cryptokit [subcommand]

• -h, --help: Show CryptoKitCLI help information.
• --version: Show CryptoKitCLI version.

Subcommands

UUID

$ cryptokit uuid

• -c, --check <check>: Validate UUID string or file path.

SHA-2 Hashing

$ cryptokit hash

• -d, --digest <digest>: SHA-2 hash with the chosen digest. (default: sha512)

HMAC

$ cryptokit hmac

• -d, --digest <digest>: SHA-2 hash with the chosen digest. (default: sha512)
• -c, --check <check>: Validate HMAC string or file path.

AES-GCM

$ cryptokit aes

• -n, --nonce <nonce>: Nonce string or file path.
• -a, --auth <auth>: Additional data string or file path.
• -d, --decrypt: Decrypt the input and verify authenticity using combined data.
• -t, --tag <tag>: Decrypt the input and verify authenticity using authentication tag and nonce.
• -s, --split : Print authentication tag and nonce instead of combined data.

ChaCha20-Poly1305

$ cryptokit poly

• -n, --nonce <nonce>: Nonce string or file path.
• -a, --auth <auth>: Additional data string or file path.
• -d, --decrypt: Decrypt the input and verify authenticity using combined data.
• -t, --tag <tag>: Decrypt the input and verify authenticity using authentication tag and nonce.
• -s, --split : Print authentication tag and nonce instead of combined data.

🛠 Compatibility

• macOS 10.15+

⚙️ Installation

There’re more than one way to install CryptoKitCLI.

Using Homebrew:

$ brew install alexruperez/CryptoKitCLI/formula

Using Mint:

$ mint install alexruperez/CryptoKitCLI

Compiling from source:

Make sure Xcode 11.4+ is installed first.

$ git clone https://github.com/alexruperez/CryptoKitCLI.git
$ cd CryptoKitCLI
$ make install

With that installed and in the /usr/local/bin folder, now it’s ready to serve.

Using Swift Package Manager:

Use as CLI

$ git clone https://github.com/alexruperez/CryptoKitCLI.git
$ cd CryptoKitCLI
$ swift run

Use as dependency

Add the following to your Package.swift file’s dependencies:

.package(url: "https://github.com/alexruperez/CryptoKitCLI.git", from: "0.1.0")

And then import wherever needed: import CryptoKitCLI

For more information, see the Swift Package Manager documentation.

🍻 Etc.

• Contributions are very welcome.
• Attribution is appreciated (let’s spread the word!), but not mandatory.

👨‍💻 Author

Alex Rupérez – @alexruperez – me@alexruperez.com

👮‍♂️ License

CryptoKitCLI is available under the MIT license. See the LICENSE file for more info.

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