mandatory-script-verify-flag-failed (Script failed an OP_EQUALVERIFY operation)

[robinkanters]

Building a Dash testnet transaction, but the transaction gets rejected if I broadcast it via this page.

This is the code I'm using to create the transaction:

val sendingAddress = "yWT4E7FKGmDXuGnYQ4BLX8Nvd2KTMEQ6aU"
val receivingAddress = "ybM6VBWqMgYHUDv7PBeN31Kb7NioX9RpHD"
val sendingAddressPrivkey = "[[ REMOVED ]]" // testnet, but still, would be nice to continue using this address 😜

val tx = Transaction(params)

val inputScript = ScriptBuilder.createOutputScript(Address.fromBase58(params, sendingAddress))
assertEquals("DUP HASH160 PUSHDATA(20)[6f21b38d07b1e7c1f1cb02e52d90486d015ce522] EQUALVERIFY CHECKSIG", inputScript.toString())

tx.addInput(Sha256Hash.wrap("c4e841e257ad42e173eeae309df403f0eff6b51dc87a861e5639041ea362b501"), 0, inputScript)
tx.addOutput(Coin.valueOf(1_0000_0000), Address.fromBase58(params, receivingAddress))
tx.addOutput(Coin.valueOf(13_9878_9000), Address.fromBase58(params, sendingAddress))

println(String(Hex.encode(tx.bitcoinSerialize())))

println("From: ${inputScript.getToAddress(params)}")

val privKey = ECKey.fromPrivate(Hex.decode(sendingAddressPrivkey))

tx.clearInputs()
tx.addSignedInput(TransactionOutPoint(
        params, 0, Sha256Hash.wrap("c4e841e257ad42e173eeae309df403f0eff6b51dc87a861e5639041ea362b501")
), inputScript, privKey, Transaction.SigHash.ALL, true)

println(String(Hex.encode(tx.bitcoinSerialize())))

Output:

010000000101b562a31e0439561e867ac81db5f6eff003f49d30aeee73e142ad57e241e8c4000000001976a9146f21b38d07b1e7c1f1cb02e52d90486d015ce52288acffffffff0200e1f505000000001976a914a4d9b8921b90f9febd8a4ccaa62162a809a05f1588ac88d35f53000000001976a9146f21b38d07b1e7c1f1cb02e52d90486d015ce52288ac00000000
From: yWT4E7FKGmDXuGnYQ4BLX8Nvd2KTMEQ6aU
010000000101b562a31e0439561e867ac81db5f6eff003f49d30aeee73e142ad57e241e8c4000000006a473044022018f362b2a6997177dd95bdc5f5e5415183b4629e90481b76b0eef5e5ae80d595022040fb1f370ad2a4db439c321668bbccbc03088040e5ea0c1740ee40d18b5175d1812102a1580b67fdc6337b8575a3f0f7c1fb55bd365454010d728e6156e813aca1d7ecffffffff0200e1f505000000001976a914a4d9b8921b90f9febd8a4ccaa62162a809a05f1588ac88d35f53000000001976a9146f21b38d07b1e7c1f1cb02e52d90486d015ce52288ac00000000

Could this be the same issue as the one in bitcoinj-cash?

[robinkanters]

Derp. Never mind. Parsing the priv key is wrong.

Should've been

val key = DumpedPrivateKey.fromBase58(params, sendingAddressPrivkey).key

Sorry, this can go :)