nakamoto-archive/docs/forum/bitcoin-forum/102.md

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layout	title	grand_parent	parent	nav_order	date	original
forum	Re: We accept Bitcoins	Forum Posts	Bitcoin Forum	102	2010-05-20 21:43:42 UTC	https://bitcointalk.org/index.php?topic=30.msg1169#msg1169

Re: We accept Bitcoins

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Re: We accept Bitcoins
May 20, 2010, 09:43:42 PM
Quote from: Xunie on February 23, 2010, 12:28:27 PM
Can I just butt in with a question on why that is? To me it seems that if Bitcoin uses public-key cryptography to transfer ownership of the coins, it should be a trivial matter to include a short message that is only readable by the recipient.
Almost but not quite.  Bitcoin uses EC-DSA, which can only do digital signing, not encryption.  RSA can do both, but I didn't use it because it's an order of magnitude bigger and would have been impractical.