Difference between revisions of "Thin Client Security"

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* A [http://sourceforge.net/mailarchive/message.php?msg_id=28633866 thread] on bitcoin-dev
 
* A [http://sourceforge.net/mailarchive/message.php?msg_id=28633866 thread] on bitcoin-dev
 +
* A [http://bitcoin.stackexchange.com/questions/2584/is-reclaiming-disk-space-already-implemented-how-effective-will-it-be/2589 question] on bitcoin.stackexchange.com

Revision as of 00:30, 15 January 2012

Recently there have been a number of proposals for bitcoin clients which do not store a copy of the entire block chain. I will refer to all such clients as "thin clients". This page is meant to be a place to try to make sense of the security and trust implications of the various schemes.

Thin Client Strategies

Simplified Payment Verification

This scheme is described in section 8 of the original bitcoin whitepaper.

BCCAPI

Clients are vulnerable to a double-spend attack against them by the server. Therefore, they are implicitly trusting it.

Electrum

Clients are vulnerable to a double-spend attack against them by the server. Therefore, they are implicitly trusting it.

Other