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@ -526,17 +526,17 @@ class Transaction: |
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s += int_to_hex(txin['index'],4) # prev index |
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if for_sig is None: |
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pubkeysig = txin.get('pubkeysig') |
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if pubkeysig: |
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pubkey, sig = pubkeysig[0] |
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sig = sig + chr(1) # hashtype |
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script = op_push( len(sig)) |
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script += sig.encode('hex') |
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script += op_push( len(pubkey)) |
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script += pubkey.encode('hex') |
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signatures = txin['signatures'] |
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pubkeys = txin['pubkeys'] |
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if not txin.get('redeemScript'): |
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pubkey = pubkeys[0] |
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sig = signatures[0] |
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sig = sig + '01' # hashtype |
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script = op_push(len(sig)/2) |
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script += sig |
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script += op_push(len(pubkey)/2) |
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script += pubkey |
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else: |
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signatures = txin['signatures'] |
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pubkeys = txin['pubkeys'] |
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script = '00' # op_0 |
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for sig in signatures: |
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sig = sig + '01' |
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@ -595,76 +595,51 @@ class Transaction: |
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def sign(self, private_keys): |
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import deserialize |
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is_complete = True |
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for i, txin in enumerate(self.inputs): |
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tx_for_sig = self.serialize( self.inputs, self.outputs, for_sig = i ) |
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txin_pk = private_keys.get( txin.get('address') ) |
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redeem_script = txin.get('redeemScript') |
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# build list of public/private keys |
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keypairs = {} |
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for sec in private_keys.get( txin.get('address') ): |
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compressed = is_compressed(sec) |
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pkey = regenerate_key(sec) |
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pubkey = GetPubKey(pkey.pubkey, compressed) |
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keypairs[ pubkey.encode('hex') ] = sec |
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redeem_script = txin.get('redeemScript') |
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if redeem_script: |
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# parse the redeem script |
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num, redeem_pubkeys = deserialize.parse_redeemScript(redeem_script) |
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txin["pubkeys"] = redeem_pubkeys |
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# list of already existing signatures |
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signatures = txin.get("signatures",[]) |
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else: |
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num = 1 |
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redeem_pubkeys = keypairs.keys() |
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# continue if this txin is complete |
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if len(signatures) == num: |
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continue |
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# get list of already existing signatures |
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signatures = txin.get("signatures",[]) |
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# continue if this txin is complete |
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if len(signatures) == num: |
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continue |
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# build list of public/private keys |
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keypairs = {} |
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for sec in txin_pk: |
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tx_for_sig = self.serialize( self.inputs, self.outputs, for_sig = i ) |
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for pubkey in redeem_pubkeys: |
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# check if we have the corresponding private key |
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if pubkey in keypairs.keys(): |
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# add signature |
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sec = keypairs[pubkey] |
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compressed = is_compressed(sec) |
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pkey = regenerate_key(sec) |
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pubkey = GetPubKey(pkey.pubkey, compressed) |
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keypairs[ pubkey.encode('hex') ] = sec |
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for pubkey in redeem_pubkeys: |
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# check if we have a key corresponding to the redeem script |
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if pubkey in keypairs.keys(): |
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# add signature |
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sec = keypairs[pubkey] |
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compressed = is_compressed(sec) |
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pkey = regenerate_key(sec) |
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secexp = pkey.secret |
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private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 ) |
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public_key = private_key.get_verifying_key() |
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sig = private_key.sign_digest( Hash( tx_for_sig.decode('hex') ), sigencode = ecdsa.util.sigencode_der ) |
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assert public_key.verify_digest( sig, Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der) |
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signatures.append( sig.encode('hex') ) |
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# for p2sh, pubkeysig is a tuple (may be incomplete) |
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txin["signatures"] = signatures |
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print_error("signatures", signatures) |
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is_complete = is_complete and len(signatures) == num |
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else: |
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if txin.get("pubkeysig"): |
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continue |
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if not txin_pk: |
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is_complete = False |
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continue |
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sec = txin_pk[0] |
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compressed = is_compressed(sec) |
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pkey = regenerate_key(sec) |
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secexp = pkey.secret |
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private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 ) |
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public_key = private_key.get_verifying_key() |
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pkey = EC_KEY(secexp) |
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pubkey = GetPubKey(pkey.pubkey, compressed) |
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sig = private_key.sign_digest( Hash( tx_for_sig.decode('hex') ), sigencode = ecdsa.util.sigencode_der ) |
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assert public_key.verify_digest( sig, Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der) |
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txin["pubkeysig"] = [(pubkey, sig)] |
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secexp = pkey.secret |
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private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 ) |
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public_key = private_key.get_verifying_key() |
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sig = private_key.sign_digest( Hash( tx_for_sig.decode('hex') ), sigencode = ecdsa.util.sigencode_der ) |
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assert public_key.verify_digest( sig, Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der) |
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signatures.append( sig.encode('hex') ) |
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txin["signatures"] = signatures |
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txin["pubkeys"] = redeem_pubkeys |
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print_error("signatures", signatures) |
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is_complete = is_complete and len(signatures) == num |
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self.is_complete = is_complete |
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self.raw = self.serialize( self.inputs, self.outputs ) |
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ThomasV
12 years ago