Security & Crypto Tools
Diffie-Hellman Key Exchange Simulator
Visualize how two parties derive a shared secret.
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What is DH Simulator?
An educational simulator that walks through the Diffie-Hellman key exchange step by step, showing how Alice and Bob derive a shared secret.
How it works
Public parameters (prime, generator, private keys) are combined to compute each party's public value and the shared secret, with every step shown.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Type or paste any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.