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jgmBitcoin (OP)
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June 21, 2016, 05:07:11 PM
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Is there some means by which I could derive symmetric keys using bitcoin public keys or HD Wallet public key which I have shared with a second user.
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Even in the event that an attacker gains more than 50% of the network's computational power, only transactions sent by the attacker could be reversed or double-spent. The network would not be destroyed.
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DannyHamilton
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June 21, 2016, 05:46:46 PM
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Quote from: jgmBitcoin on June 21, 2016, 05:07:11 PM
Is there some means by which I could derive symmetric keys using bitcoin public keys or HD Wallet public key which I have shared with a second user.

You're going to have to explain what you are trying to do.

Bitcoin public keys are just very big numbers.  You can do whatever you want with them, but your intended use might be a really bad idea depending on what you're trying to do.
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June 21, 2016, 10:52:14 PM
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Quote from: jgmBitcoin on June 21, 2016, 05:07:11 PM
Is there some means by which I could derive symmetric keys using bitcoin public keys or HD Wallet public key which I have shared with a second user.

https://en.m.wikipedia.org/wiki/Elliptic_curve_Diffie-Hellman
http://bitcoinfs.github.io/bitcoinfs/index.html
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