📅 Original date posted:2014-01-18
📝 Original message:On Fri, Jan 17, 2014 at 8:55 PM, Alan Reiner <etotheipi at gmail.com> wrote:
> Isn't there a much faster asymmetric scheme that we can use? I've heard people talk about ed25519, though I'm not sure it can be used for encryption.
Doing ECDH with our curve is within a factor of ~2 of the fastest
encryption available at this security level, AFAIK. And separate
encryption would ~double the amount of data vs using the ephemeral key
for derivation.
Using another cryptosystem would mandate carry around additional code
for a fast implementation of that cryptosystem, which wouldn't be
fantastic.
So I'm not sure much can be improved there.
Gregory Maxwell [ARCHIVE] /
npub1f2…crwet
2023-06-07 15:11:50
in reply to nevent1q…ydd6
Author Public Key
npub1f2nvlx49er5c7sqa43src6ssyp6snd4qwvtkwm5avc2l84cs84esecrwetPublished at
2023-06-07 15:11:50Event JSON
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"pubkey": "4aa6cf9aa5c8e98f401dac603c6a10207509b6a07317676e9d6615f3d7103d73",
"created_at": 1686150710,
"kind": 1,
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"content": "📅 Original date posted:2014-01-18\n📝 Original message:On Fri, Jan 17, 2014 at 8:55 PM, Alan Reiner \u003cetotheipi at gmail.com\u003e wrote:\n\u003e Isn't there a much faster asymmetric scheme that we can use? I've heard people talk about ed25519, though I'm not sure it can be used for encryption.\n\nDoing ECDH with our curve is within a factor of ~2 of the fastest\nencryption available at this security level, AFAIK. And separate\nencryption would ~double the amount of data vs using the ephemeral key\nfor derivation.\n\nUsing another cryptosystem would mandate carry around additional code\nfor a fast implementation of that cryptosystem, which wouldn't be\nfantastic.\n\nSo I'm not sure much can be improved there.",
"sig": "74042cf127fcddf8ce7362267848d7ed7ef5994fe173f69351e2252efb15e2e6ed130e67d6b4cb61c5de3e39fdaa5cf270aae6a8095dcdd6ff6f975a46dd08e0"
}