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Title: Transaction Signature ... Simplified Transaction? Post by: bluemeanie1 on June 27, 2013, 02:07:56 AM Hi All,
I've been looking closer at the TX verification mechanism. in the Wiki we have : "The other component is an ECDSA signature over a hash of a simplified version of the transaction." https://en.bitcoin.it/wiki/Transactions Can anyone explain 'simplified version of the transaction'? Is this explained in detail anywhere? I took a look at Mike Hearn's code (com.google.bitcoin.core.Transaction [1] ) and I suppose I could reverse engineer, but that would take more time than reading over some documentation. It seems that the signature is of a subset of the transaction, how exactly this works is not altogether clear to me. pointers? thanks -bm [1] http://code.google.com/p/bitcoinj/source/browse/core/src/main/java/com/google/bitcoin/core/Transaction.java Title: Re: Transaction Signature ... Simplified Transaction? Post by: jackjack on June 27, 2013, 07:37:29 AM OP_CHECKSIG article on the wiki
There's a clear image made by etotheipi if I remember correctly Title: Re: Transaction Signature ... Simplified Transaction? Post by: bluemeanie1 on June 27, 2013, 08:14:57 AM OP_CHECKSIG article on the wiki There's a clear image made by etotheipi if I remember correctly that looks like what I'm looking for! yes, there is a nice image courtesy of etotheipi https://en.bitcoin.it/w/images/en/7/70/Bitcoin_OpCheckSig_InDetail.png thanks much Jack Jack. -bm Title: Re: Transaction Signature ... Simplified Transaction? Post by: dserrano5 on June 27, 2013, 02:29:02 PM http://bitcoin.stackexchange.com/questions/3374/how-to-redeem-a-basic-tx has good info too.
Title: Re: Transaction Signature ... Simplified Transaction? Post by: Mike Hearn on June 27, 2013, 02:42:38 PM Also see the theory section of https://en.bitcoin.it/wiki/Contracts
Title: Re: Transaction Signature ... Simplified Transaction? Post by: bluemeanie1 on June 27, 2013, 07:23:07 PM dserrano + Mike Hearn, thanks for the pointers! -bm |