Developer Documentation & Technical Information

Cryptographic Libraries & APIs Used

Encrypti0n.com uses modern browser-native cryptographic libraries:

• @mqxym/cryptit v2.2.1 : TypeScript powered API used for AES-GCM / Argon2id text and file encryption (GitHub) .
• @mqxym/secure-local-storage v0.8.0 : Browser API used for securing the local storage data with AES-GCM envelope encryption (GitHub) .
• window.crypto : Secure random number generation and cryptographic operations (used in @mqxym/cryptit / @mqxym/secure-local-storage).
• window.crypto.subtle : Provides essential cryptographic primitives like AES-GCM encryption/decryption and key imports (used in @mqxym/cryptit / @mqxym/secure-local-storage).
• antelle/argon2-browser : Provides the Argon2id key derivation implementation for browsers (used in @mqxym/cryptit / @mqxym/secure-local-storage) (GitHub) .

Some APIs are part of the Web Crypto API specification , offering robust, secure cryptographic functions directly within supported browsers.

Other Libraries Used

• Bootstrap v5 : Custom Bootstrap 5 template for the pages design (Official Page) .
• jQuery v3.6.0 : Used for DOM manipulation but will be replaced by vanilla JS step by step (Official Page) .
• StreamSaver.js v2.0.6 : Used for streaming (downloading) large files directly to disk (Github) .
• SweetAlert2 : For the informational popups (Official Page) .
• HighlightJS v11.9 : For code highlighting (Official Page) .
• deanilvincent/check-password-strength : For encryption password strenght checking (GitHub) .
• autonomoussoftware/fast-password-entropy : For password generator entropy checking / displaying (GitHub) .
• IonDen/ion.rangeSlide : Range-slider for password generator app (GitHub) .
• dropbox/zxcvbn : Password strenght estimation for password checker app (GitHub) .
• JSZip v3.10.1 : Zip Download / Upload of multiple encrypted files (Official Page) .

Source Code Availability

Encrypti0n.com strongly believes in transparency, which is why the complete source code is openly available on GitHub:

Encrypti0n.com GitHub Repository

Developers, researchers, and privacy enthusiasts are encouraged to inspect, review, and contribute to enhance the project's reliability and security.

Internal Error Handling Mechanism

Encrypti0n.com uses precise and secure error handling aligned with the tamper-proof nature of AES-GCM encryption:

• AES-GCM Decryption Errors: When decrypting data, the Web Crypto API returns explicit errors if the provided key, nonce, or ciphertext is incorrect, indicating potential tampering or incorrect passwords.
• Tamper-proof Encryption: AES-GCM inherently provides authentication, meaning any alteration to the encrypted data will result in failed decryption, immediately alerting the user.

This ensures reliable security by always returning an error (e.g., wrong passwords) or potential data corruption or attacks. Read more here, in the Official Web Crypto API "Decrypt Method" Docs .

For a step-by-step breakdown of encryption and decryption processes , visit our How Encrypti0n.com Works page.

Example-Code:

try {
    decryptedData = await window.crypto.subtle.decrypt(
        { name: "AES-GCM", iv: iv },
        derivedKey,
        encryptedData
    );
} catch (error) {
    displayError("Decryption failed: Incorrect password or data integrity compromised.");
}

Browser Compatibility

Encrypti0n.com uses the Web Crypto API and depends on @mqxym/secure-local-storage and @mqxym/cryptit . To keep things simple for users, we publish a single, definitive minimum version per browser. This baseline is the highest requirement across both libraries and their underlying features (SubtleCrypto, IndexedDB, WebAssembly, and secure randomness).

• Google Chrome: 57+
• Mozilla Firefox: 52+
• Microsoft Edge (Chromium): 79+
• Apple Safari (macOS): 11+
• Safari on iOS/iPadOS: 11+
• Opera: 44+ (Chromium-based)