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25 2016-08-09T02:17:53 <p2me> are there any signature rules besides high-s value i need to take care of? i'm still getting 50/50 success when pushing my tx's, with the only thing changing is the nonce
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104 2016-08-09T13:03:11 <Testfile> hello?
105 2016-08-09T13:05:44 <jonasschnelli> hi
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148 2016-08-09T16:58:39 <arubi> thanks for the clarification jl2012
149 2016-08-09T17:02:51 <p2me> thanks for the help yesterday arubi. was still getting errors after i fixed the high s-value stuff, had to fix DER encoding issues with the r value too. all good now though, ty
150 2016-08-09T17:04:21 <arubi> ah no problem. guess you needed to push 21 bytes as 0x00<R> ?
151 2016-08-09T17:04:54 <arubi> (for r > 0x7f...)
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153 2016-08-09T17:05:49 <p2me> yeah 2's complement stuff, was being decoded as negative when the most significant bit was 1
154 2016-08-09T17:05:59 <arubi> mhm. exactly
155 2016-08-09T17:07:03 <p2me> that's the motivation for low s value then? saving 1 byte?
156 2016-08-09T17:07:27 <arubi> it's malleability, a high s is just as valid as the low s for a signature
157 2016-08-09T17:07:48 <arubi> but it creates transaction malleability, and it's exploitable by a 3rd party too
158 2016-08-09T17:08:31 <arubi> just change s values for txs that you hear about, that changes the txid and keeps the signature valid
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160 2016-08-09T17:10:45 <p2me> oh makes sense. so malleability fix which happens to save 1 byte too
161 2016-08-09T17:11:01 <arubi> half the time :)
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168 2016-08-09T18:04:00 <btcdrak> is anyone herr making segwit txs on testnet?
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178 2016-08-09T19:45:03 <p2me> if you send coin to a script (hash) without any checksig op codes that's essentially open to theft, correct?
179 2016-08-09T19:45:16 <p2me> when you go to redeem it at least
180 2016-08-09T19:46:21 <p2me> like those "hash puzzle" examples
181 2016-08-09T19:47:54 <arubi> it's basically anyone-can-spend
182 2016-08-09T19:52:21 <p2me> ok. so any "real world" scripts you could think of, will have at least 1 checksig ya?
183 2016-08-09T19:56:12 <arubi> even a checksig isn't enough. the hash must be some identification of the public key
184 2016-08-09T19:56:50 <arubi> you could have 'hash <data> <drop> checksig', any public key is good and anyone can spend after the preimage is known
185 2016-08-09T19:57:55 <arubi> not only that, but you don't need a private key at all to redeem something like that ^
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187 2016-08-09T20:04:53 <p2me> ok i think i follow. i'm right to say the script will contain AT LEAST a checksig op code, but what is actually important a proper digital sig scheme. anything with symmetric information is anyone-can-spend
188 2016-08-09T20:06:06 <arubi> yea, afaik
189 2016-08-09T20:06:59 <p2me> alright cool
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