Hi there! As part of my green address endeavor, I'm currently trying to extend the 'gettransaction' call to include an extra field "inputaddresses" which should return a list of the Bitcoin addresses associated with the inputs of the transaction.
I understand that this is not generally possible, because of the different possible structures enabled through the scripting language. But it would be fine, if this only worked for 'regular' transactions. So my first shot at this is to go through the inputs of a transaction and see if the scriptSig field has only two opcodes. If that is the case, I assume that it is of the structure <sig> <pubKey> and calculate the Bitcoin address from <pubKey>. The patch for this is here: https://github.com/javgh/bitcoin/compare/vps_wheezy...showinputaddresses But then I started to wonder if this is safe. Can this be tricked somehow? Would it be possible to create a valid transaction which has an input that has only two opcodes but with an arbitrary pubKey at the second position? Could someone who has a better grasp on the scripting capabilities comment on this? Or alternatively: should I determine the input addresses of a transaction in a different way? if so, how? Regards! Jan ------------------------------------------------------------------------------ The demand for IT networking professionals continues to grow, and the demand for specialized networking skills is growing even more rapidly. Take a complimentary Learning@Cisco Self-Assessment and learn about Cisco certifications, training, and career opportunities. http://p.sf.net/sfu/cisco-dev2dev _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
