Security & Cryptography

Diffie-Hellman Exchange

An interactive visual simulator demonstrating how the Diffie-Hellman Key Exchange protocol works math-wise, enabling two parties to establish a shared secret key securely.

1. Public Parameters (Shared publicly)

Prime Modulus (p)

Generator (g)

Alice

Private Key (a) — Hidden

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Public Key (A = g^a mod p) — Sent

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Shared Secret Key (s = B^a mod p)

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Bob

Private Key (b) — Hidden

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Public Key (B = g^b mod p) — Sent

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Shared Secret Key (s = A^b mod p)

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100% Private & Client-Side

Your private keys & shared secret never leaves your browser — not even for a millisecond.

Verified Private

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No Server Transmission All computation runs in your browser. Zero data sent to our servers.

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No Storage We store nothing. No databases, no logs, no cookies with your input.

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Works Offline Once loaded, this tool works even with no internet connection.

Open-source on GitHub — read and verify the exact code powering this tool. View Source Code →

Diffie-Hellman Exchange

1. Public Parameters (Shared publicly)

Public Exchange Route

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