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by Ciro Santilli (@cirosantilli, 37)

Diffie-Hellman vs ECDH

 ... Computer science Cryptography Symmetric and public-key cryptography Public-key cryptography Elliptic curve cryptography Elliptic-curve Diffie-Hellman
 0 By others on same topic  0 Discussions  Updated 2025-05-26  +Created 1970-01-01  See my version
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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