Select Study File
Choose DSE past paper or notes from the explorer directory tree to sync contextual questions.
Private Secure Workspace // DSE Prep
Client-side WebCrypto encryption (AES-GCM-256). Stored locally in your browser. Zero server logs.
Read how your API keys and study files are secured on this device.
>> Security Protocol Overview
This study space uses Bring Your Own Key (BYOK) architecture. To enable AI feedback, you must supply your own OpenAI/Anthropic API secrets.
>> On-Device Decryption
Your API secrets are encrypted locally inside your browser sandbox via AES-GCM (256-bit). We derive the keying material from a Master Passphrase of your choosing. Our servers do not store your keys or passphrase.
>> Cloudflare R2 Workspace
Uploaded documents (PDFs, images) are mapped directly into private Cloudflare R2 object storage buckets tied to your credentials. API routing utilizes JWT-secured headers.
Configure your targets to contextualize the AI tutor responses.
Configure sample structures to visualize system functionalities.
Seeds SQLite records for history, folders inside R2, and sets up tutor configuration.
Choose DSE past paper or notes from the explorer directory tree to sync contextual questions.
Select DSE materials from the sidebar directory to set context. All questions proxy locally using encrypted local keys.
No local keys loaded
Enter your API keys below and lock them with a Master Passphrase to configure AI access.
We do not store this passphrase. Do not forget it.