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Author Topic: Looking for a bitcoin research article  (Read 1101 times)
fergalish (OP)
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September 23, 2012, 08:05:29 PM
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A few months ago, maybe a year, I remember reading a research article about embedding messages into the blockchain. The method was not simply sending ASCII binary transactions (e.g. 0.01101101BTC). As I remember, the process involved something like:

1. Alice sends a transaction to some carefully sculpted keypair, and notifies Bob of that address. Alice redeems the coins so the public key is visible.
2. Bob performs some operations on the public key and derives an additional keypair, and sends coins there. Alice, knowing which operations Bob would be doing, watches the blockchain until she identifies Bob's transaction.
3. Somehow, with this info, Alice and Bob can communicate securely, but maybe also anonymously.

I've scoured the forum, and I've repeatedly asked google, but no dice. Can anyone remember the article? At the time, it was presented as a real problem because, while the ASCII transaction above could be detected and maybe discouraged, this method was completely undetectable.

Thanks.
Meni Rosenfeld
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September 23, 2012, 08:17:26 PM
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Did you look at https://en.bitcoin.it/wiki/Research?

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September 23, 2012, 08:26:02 PM
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Thanks for the link. Good to return back to unsaved / unbookmarked docs.

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Stephen Gornick
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September 23, 2012, 09:27:40 PM
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Can anyone remember the article?

I haven't read the report but CommitCoin perhaps might lead toward the answer:

 - http://people.scs.carleton.ca/~clark/projects/commitcoin/

Unichange.me

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fergalish (OP)
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September 23, 2012, 09:45:05 PM
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Thanks for the link - didn't know about it. Unfortunately it's not there.

I haven't read the report but CommitCoin perhaps might lead toward the answer:
 - http://people.scs.carleton.ca/~clark/projects/commitcoin/
No, it's not commitcoin. It's more an article about using the blockchain to send personal messages. Commitcoin is very awesome but, unless I misunderstand, it's not about messaging. Cheers.
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September 24, 2012, 01:43:00 AM
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Thanks for the link - didn't know about it. Unfortunately it's not there.

I haven't read the report but CommitCoin perhaps might lead toward the answer:
 - http://people.scs.carleton.ca/~clark/projects/commitcoin/
No, it's not commitcoin. It's more an article about using the blockchain to send personal messages. Commitcoin is very awesome but, unless I misunderstand, it's not about messaging. Cheers.

These aren't exactly like you had specified, but here are some services I have looked at in the past couple of days:

https://bitcointalk.org/index.php?topic=47283.0

and

http://btcmsg.staticloud.com/

These are viewable by anyone though.

I would imagine it would not be hard to come up with a communication algorithm that only you and whoever it was you were wanting to communicate with would know and be a little more secure though.  It would just depend on how you decided to cypher the text and transmit it.
fergalish (OP)
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September 24, 2012, 02:25:56 PM
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These aren't exactly like you had specified, but here are some services I have looked at in the past couple of days:
https://bitcointalk.org/index.php?topic=47283.0
and
http://btcmsg.staticloud.com/
These are viewable by anyone though.
I would imagine it would not be hard to come up with a communication algorithm that only you and whoever it was you were wanting to communicate with would know and be a little more secure though.  It would just depend on how you decided to cypher the text and transmit it.
No, it's something different. There was something special about this communication method that made it notable. If I could remember that I'm sure I or someone here would find the article. Thanks.
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