Welcome to the TimeSeed System

Since the late 1990s, we've had PGP to exchange keys and encrypt messages or files. Now there’s TimeSeed—a simple, privacy-focused alternative that doesn’t rely on centralized servers or key pairs.

With TimeSeed, you only use pre-shared secrets. There’s no personal information involved—no email, fingerprint, ID, phone number, or hardware wallet required. Just pure cryptography, built for privacy. It's also built for flexibility, using a two-layer setup:

TimeSeed + Pepper password → Derived encryption password

How TimeSeed Works

TimeSeed is more than a basic encrypt/decrypt tool—it's a deterministic password generator with built-in re-keying using pre-shared secrets.

From a single secret (the TimeSeed) and an optional pepper password, you can derive strong encryption keys on any device, online or offline.

It uses AES-GCM encryption with salting—verifiable, standard cryptography. All logic is contained in one single HTML file. No hidden components, no black boxes.

The Workflow

1. Generate a TimeSeed

Generate a random 50-character string on the open-source site. This is your TimeSeed—the root of all your derived keys.

2. Add a Pepper Password (Optional)

To separate contexts (by person, app, or situation), add a pepper password to the TimeSeed.

Best practice: share the TimeSeed securely, and exchange the pepper separately—over a call or in person.

You can even agree on a predefined list and only use specific “slots” from it for added secrecy.

3. Derive Passwords

Combine your TimeSeed + pepper to derive a 64-character encryption password.

It can be re-derived consistently by choosing a specific date—daily, monthly, or semi-annually.

4. Encrypt / Decrypt with the Derived Password

You never use the TimeSeed directly for encryption—only the derived password.

This makes TimeSeed ideal for repeated use over time, where trust and secrecy are needed but identity and accounts are not.

Summary

• TimeSeed is simple, deterministic, and offline-capable.
• No accounts, logins, or trusted third parties needed.
• Just shared secrets + optional pepper → encryption passwords.
• Fully open source, browser-based, and reproducible.

Try it.
Rebuild it.
Trust it — because it's open, auditable, and designed for a world where privacy matters.

Example

TimeSeed:
R8prjIjMdg7mr2lL5a3NtYS3Jh43WqCHfbNxDIOtFDguFMAis2

Pepper password:
encrypt-everything

Derived encryption password (for 1st of January 2025):

35efd85af61e1f2853b4f2afa3e1edc2f3eeb4761e5da89e9ef7e52dbae4eb8f

Encrypted message:

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

Decrypted output:
"Test message created in June 2025 for ...."

TimeSeed is free, open-source, and designed for a future where privacy is a human right.