Good day! I'm working with low level API to make tx and sign it offline. But after all preparations I try to broadcast it and than i get an error from network:
16: mandatory-script-verify-flag-failed (signature must be zero for failed check(multi)sig operation)
First of all I create tx without signing inputs, and after that i'm trying to sign every input with my priv keys.
Here is raw tx before signing :
01000000028bcf82619e93eb92cc78d5bb0b7b22d6ee419820428402e721fbac1386c9673f0000000000ffffffffd50ea1cd97af5295cddcd4f0c7c0d531fed5683bde80af45ede25a0571c31add0100000000ffffffff02087f0300000000001976a9146fb643fe63bcc6c352899298d6072cc5d4178c0f88acfa6b0100000000001976a914196e59ee4c151e742af69bca308fc1b4445c577288ac00000000
Parsing tx from the https://live.blockcypher.com/btc/decodetx/ :
{
"addresses": [
"16Yb7QP5jVmjXvHawH2ZA66k1b46FmtmE3",
"13KU69194fJj13G1SajUWokudsuekhT1kw",
"1BBgML68FuyRwU8RzwYn1FvqAXDDSgjVKC"
],
"block_height": -1,
"block_index": -1,
"confirmations": 0,
"double_spend": false,
"fees": 55194,
"hash": "2010928be1525a89aae1e0ece367757f6deb3754bfc4c891ffddbad403ecc3c9",
"inputs": [
{
"addresses": [
"16Yb7QP5jVmjXvHawH2ZA66k1b46FmtmE3"
],
"age": 534819,
"output_index": 0,
"output_value": 251628,
"prev_hash": "3f67c98613acfb21e7028442209841eed6227b0bbbd578cc92eb939e6182cf8b",
"script_type": "pay-to-pubkey-hash",
"sequence": 4294967295
},
{
"addresses": [
"13KU69194fJj13G1SajUWokudsuekhT1kw"
],
"age": 534818,
"output_index": 1,
"output_value": 125872,
"prev_hash": "dd1ac371055ae2ed45af80de3b68d5fe31d5c0c7f0d4dccd9552af97cda10ed5",
"script_type": "pay-to-pubkey-hash",
"sequence": 4294967295
}
],
"outputs": [
{
"addresses": [
"1BBgML68FuyRwU8RzwYn1FvqAXDDSgjVKC"
],
"script": "76a9146fb643fe63bcc6c352899298d6072cc5d4178c0f88ac",
"script_type": "pay-to-pubkey-hash",
"value": 229128
},
{
"addresses": [
"13KU69194fJj13G1SajUWokudsuekhT1kw"
],
"script": "76a914196e59ee4c151e742af69bca308fc1b4445c577288ac",
"script_type": "pay-to-pubkey-hash",
"value": 93178
}
],
"preference": "high",
"received": "2018-08-05T18:04:52.877018121Z",
"relayed_by": "54.162.141.93",
"size": 160,
"total": 322306,
"ver": 1,
"vin_sz": 2,
"vout_sz": 2
}
Here is my code of signing every input:
for (int i = 0; i < transaction.getInputs().size(); i++) {
TransactionInput transactionInput = transaction.getInput(i);
String addressFromUtxo = mUTXOs.get(i).getAddress();
byte[] privKeyBytes = getPrivKeyBitesForAddress(addressFromUtxo);
ECKey ecKey = ECKey.fromPrivate(privKeyBytes);
Script scriptPubKey = ScriptBuilder.createOutputScript(Address.fromBase58(params, mUTXOs.get(i).getAddress()));
Sha256Hash hash = transaction.hashForSignature(i, scriptPubKey, Transaction.SigHash.ALL, false);
ECKey.ECDSASignature ecSig = ecKey.sign(hash);
TransactionSignature txSig = new TransactionSignature(ecSig, Transaction.SigHash.ALL, false);
transactionInput.setScriptSig(ScriptBuilder.createInputScript(txSig, ecKey));
}
//serialization and broadcasting
byte[] bytesRawTransaction = transaction.bitcoinSerialize();
String rawTransaction = HEX.encode(bytesRawTransaction);
broadcastTx(rawTransaction);
And here how my raw tx looks after the signing:
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
Parsing tx from the https://live.blockcypher.com/btc/decodetx/ :
{
"addresses": [
"16Yb7QP5jVmjXvHawH2ZA66k1b46FmtmE3",
"13KU69194fJj13G1SajUWokudsuekhT1kw",
"1BBgML68FuyRwU8RzwYn1FvqAXDDSgjVKC"
],
"block_height": -1,
"block_index": -1,
"confirmations": 0,
"double_spend": false,
"fees": 55194,
"hash": "26859671de7bd5f0ab758517d90dcb2ef7c8a8a331a2d4fc59c7d98e07857d09",
"inputs": [
{
"addresses": [
"16Yb7QP5jVmjXvHawH2ZA66k1b46FmtmE3"
],
"age": 534819,
"output_index": 0,
"output_value": 251628,
"prev_hash": "3f67c98613acfb21e7028442209841eed6227b0bbbd578cc92eb939e6182cf8b",
"script": "473044022054720cc14562000ed1a6fa7952d2343bef48e2fa4fd0f1c1894579026ae83692022042735beb03c4d53c8d72126e1e4e8bee7acd5530284b05d6707a4e71cc891e9a01210312e1997fc0cb4c037c94885e7e4a8d0eca9d5cff8628cc3d870e5c158c9b0901",
"script_type": "pay-to-pubkey-hash",
"sequence": 4294967295
},
{
"addresses": [
"13KU69194fJj13G1SajUWokudsuekhT1kw"
],
"age": 534818,
"output_index": 1,
"output_value": 125872,
"prev_hash": "dd1ac371055ae2ed45af80de3b68d5fe31d5c0c7f0d4dccd9552af97cda10ed5",
"script": "47304402206a70b6dacea9e9435c21fe920471daccf2edb636592b9d9163b1f5d740e582e102203416f80e9859fcfacc9f41ea3e04774ef47c9b0b9fa5a61f2b77dffee4c2710e012103522a472dd00a929e0f0980b98eb6a0d10a6e5a6ff7d45709cdb9f022b881ca66",
"script_type": "pay-to-pubkey-hash",
"sequence": 4294967295
}
],
"outputs": [
{
"addresses": [
"1BBgML68FuyRwU8RzwYn1FvqAXDDSgjVKC"
],
"script": "76a9146fb643fe63bcc6c352899298d6072cc5d4178c0f88ac",
"script_type": "pay-to-pubkey-hash",
"value": 229128
},
{
"addresses": [
"13KU69194fJj13G1SajUWokudsuekhT1kw"
],
"script": "76a914196e59ee4c151e742af69bca308fc1b4445c577288ac",
"script_type": "pay-to-pubkey-hash",
"value": 93178
}
],
"preference": "high",
"received": "2018-08-05T10:44:42.584042561Z",
"relayed_by": "54.162.141.93",
"size": 372,
"total": 322306,
"ver": 1,
"vin_sz": 2,
"vout_sz": 2
}
And after all above I got:
16: mandatory-script-verify-flag-failed (signature must be zero for failed check(multi)sig operation)
Please, help me, what I'm doing wrong???