 Diffie-Hellman vs ECDH

ID: diffie-hellman-vs-ecdh

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Diffie-Hellman vs ECDH by

Ciro Santilli 37  Updated 2025-05-29  +Created 1970-01-01

crypto.stackexchange.com/questions/29906/how-does-diffie-hellman-differ-from-elliptic-curve-diffie-hellman

ECDH has smaller keys. youtu.be/gAtBM06xwaw?t=634 mentions some interesting downsides:

bad curves exist, while in modular, any number seems to work well. TODO why?
TODO can't find this mentioned anywher else: Diffie-Hellman key exchange has a proof that there is no algorithm, ECDH doesn't. Which proof?

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