Bitcoin Forum

hi all
i have need of your help
when i use RawTX_RSZ.py
i have this error

File "RawTX_RSZ.py", line 8, in <module>                                                                                                                                  
m = txnUtils.parseTxn(tx)                                                                                                                                            
File "C:\Users\luca7\Desktop\ethereum-private-key-attack-master\txnUtils.py", line 41, in parseTxn                                                                        assert(len(pub) == pubLen*2)                                                                                                                                        
AssertionError  

the same error if i use
getz_input.py -txid .............                  

address start with 31.............
i know pubblic key
i know R and S

i have need of Z

can you help me please?

Given that the stack trace mentions Ethereum, it is possible that you are inserting a Bitcoin public key in an Ethereum cracker.

I don't see RawTX_RSZ.py anywhere in the output.

Then the z value is just a double SHA256 of the transaction bytes after performing a little cosmetic surgery on it to add some bytes and substitute in a Ripemd160 hash

https://github.com/stateactor/Bitcoin-Key-Compression-Tool/blob/master/txnUtils.py#L31-L54

i have this error

assert(len(pub) == pubLen*2)                                                                                                                                        
AssertionError              

it's a btc transation not eth      

i have btc transaction
i have btc address
i have pubblic key
i have R
i have S
i must recover Z

You don't need a signature or private key to calculate Z, that's why it's called a raw transaction... just double-SHA256 the rawtx like any other transaction, no need to use signature collisions (besides, that wouldn't work anyway since you neither know the private key nor an equation relating the nonces of two transactions).

thanks NotATether for your support
what do you mean just double-SHA256 the rawtx like any other transaction??
is there a python scrypt for to do calculation??
because
https://github.com/iceland2k14/rsz
and
Bitcoin-Key-Compression-Tool  RawTX_RSZ.py
don't work for my transaction

Pkscript
OP_HASH  ..........

OP_EQUAL


Sigscript
OP_0

3045......
3045......
3046.....
5321....
no Witness

can you please create 1 python scrypt for to do calculation of z ??

i riceve this error
assert(len(pub) == pubLen*2)                                                                                                                                        
AssertionError  

You have to construct a raw transaction and then hash it twice to get Z.

This link shows you how to do that, follow the steps up to step 14: https://stackoverflow.com/questions/60255876/signing-a-bitcoin-segwit-transaction

Is this a P2PKH (1.....) address? Because the script sure looks like it and you also have no witness data.

Just asking, because no Segwit wallet I know of had a nonce vulnerability that RSZ breakers rely on to work properly.

NotATether can you check private message please?

this is tx
https://www.blockchain.com/btc/tx/74816056467f652d2fb4e21c00abce572e244a1ed75b77724d0133b7e75c27dc

i can't take z

is there any solution?

500$ ?

if i recover my btc ..i can send you 500 $ no problem

Did you retrieve R & S from the values:

Then just apply calculations for Z

i know R and S
i have need of Z

R=896324077e81aa06ee4b61d2f7d769a7726fd1b0d468c7599038e9c279954b2a S=d99dd8fc7d32cdf025cba3bd80ed51a6dbf860da29eb506c40016f22a19efc42

what is Z??

what is formula or python scrypt for calculate z?

when i use RawTX_RSZ.py
i have this error

File "RawTX_RSZ.py", line 8, in <module>                                                                                                                                 
m = txnUtils.parseTxn(tx)                                                                                                                                           
File "C:\Users\luca7\Desktop\ethereum-private-key-attack-master\txnUtils.py", line 41, in parseTxn                                                                        assert(len(pub) == pubLen*2)                                                                                                                                       
AssertionError 

the same error if i use
getz_input.py -txid ............. 

Look at that explanation:
https://bitcoin.stackexchange.com/questions/71867/decoding-scriptsig

and then apply fields definition to your hex:

Then you may try to modify python scripts to "inject" recovered values.

i don't know to do that...sorry