[Bitcoin-development] Bug in 2-of-3 transaction signing in Bitcoind?

Tue, 15 Apr 2014 08:05:28 -0700 

For the life of me, I cannot figure out what's wrong with this. It seems like 
Bitcoind has lost its mind. I'm trying to redeem a 2-of-3 multisig P2SH output 
using a raw transaction.


Here's the address that the P2SH output was sent to:

$ bitcoind createmultisig 2 
'["03566474f987a012a69a08097253394ebd681454df29c3f1fb0495a5b45490f928", 
"03927407ca158155d0d30366395ca9cdc7d93cfa0a5b22181374431c15aae7b358", 
"02cff98aba464f5d4ebac5e6417f142326235f5a0a59708ba6231471cce4ee0747"]'
{
    "address" : "33snuCcVUmn9iBG345keJRzMfVwz7Uo87C",
    "redeemScript" : 
"522103566474f987a012a69a08097253394ebd681454df29c3f1fb0495a5b45490f9282103927407ca158155d0d30366395ca9cdc7d93cfa0a5b22181374431c15aae7b3582102cff98aba464f5d4ebac5e6417f142326235f5a0a59708ba6231471cce4ee074753ae"
}


The transaction containing the output is 
ec7d985ae265a3a79c68d852e0e52cf4177c3362d7a25fb718be82f980f39285. It's the 
second output.


So I ask Bitcoind to create a raw transaction to spend the output:

$ bitcoind createrawtransaction 
'[{"txid":"ec7d985ae265a3a79c68d852e0e52cf4177c3362d7a25fb718be82f980f39285", 
"vout":1}]' '{"19YNEu4ZqX3nU9rJMuMcDy3pzFhactZPmk":0.00050000, 
"1J2qtR7HBbE4rkNAgZCo4hZUEd2Z4jtSgz":0.00040000}'
01000000018592f380f982be18b75fa2d762337c17f42ce5e052d8689ca7a365e25a987dec0100000000ffffffff0250c30000000000001976a9145dafa18ab21debe3d20f2c39e88d630f822bd29e88ac409c0000000000001976a914bad35cd767b657daa4a735b32e3d1f1dab52872d88ac00000000


And here is the decoded transaction, for completeness:

$ bitcoind decoderawtransaction 
01000000018592f380f982be18b75fa2d762337c17f42ce5e052d8689ca7a365e25a987dec0100000000ffffffff0250c30000000000001976a9145dafa18ab21debe3d20f2c39e88d630f822bd29e88ac409c0000000000001976a914bad35cd767b657daa4a735b32e3d1f1dab52872d88ac00000000
{
    "txid" : "8d731e6e333d805f6c8b569e1a608d14127d61d3123b699355133b2c757c16fb",
    "version" : 1,
    "locktime" : 0,
    "vin" : [
        {
            "txid" : 
"ec7d985ae265a3a79c68d852e0e52cf4177c3362d7a25fb718be82f980f39285",
            "vout" : 1,
            "scriptSig" : {
                "asm" : "",
                "hex" : ""
            },
            "sequence" : 4294967295
        }
    ],
    "vout" : [
        {
            "value" : 0.00050000,
            "n" : 0,
            "scriptPubKey" : {
                "asm" : "OP_DUP OP_HASH160 
5dafa18ab21debe3d20f2c39e88d630f822bd29e OP_EQUALVERIFY OP_CHECKSIG",
                "hex" : "76a9145dafa18ab21debe3d20f2c39e88d630f822bd29e88ac",
                "reqSigs" : 1,
                "type" : "pubkeyhash",
                "addresses" : [
                    "19YNEu4ZqX3nU9rJMuMcDy3pzFhactZPmk"
                ]
            }
        },
        {
            "value" : 0.00040000,
            "n" : 1,
            "scriptPubKey" : {
                "asm" : "OP_DUP OP_HASH160 
bad35cd767b657daa4a735b32e3d1f1dab52872d OP_EQUALVERIFY OP_CHECKSIG",
                "hex" : "76a914bad35cd767b657daa4a735b32e3d1f1dab52872d88ac",
                "reqSigs" : 1,
                "type" : "pubkeyhash",
                "addresses" : [
                    "1J2qtR7HBbE4rkNAgZCo4hZUEd2Z4jtSgz"
                ]
            }
        }
    ]
}


Now I'll sign the transaction with 2 of 3 keys:

$ bitcoind signrawtransaction 
01000000018592f380f982be18b75fa2d762337c17f42ce5e052d8689ca7a365e25a987dec0100000000ffffffff0250c30000000000001976a9145dafa18ab21debe3d20f2c39e88d630f822bd29e88ac409c0000000000001976a914bad35cd767b657daa4a735b32e3d1f1dab52872d88ac00000000
 '[{"txid":"ec7d985ae265a3a79c68d852e0e52cf4177c3362d7a25fb718be82f980f39285", 
"vout":1, "scriptPubKey":"a91417f9f4ba5c2f2b9334805f91bbbf90a19aaa3d5687", 
"redeemScript":"522103566474f987a012a69a08097253394ebd681454df29c3f1fb0495a5b45490f9282103927407ca158155d0d30366395ca9cdc7d93cfa0a5b22181374431c15aae7b3582102cff98aba464f5d4ebac5e6417f142326235f5a0a59708ba6231471cce4ee074753ae"}]'
 '["Ky7EQeg71YHeftLc31tt8AoNSezFEgUCbvwYak1eKksg6gQww6FF", 
"KxAXrjTMZJN1Egqkckdz9TXyB2kyJ68wu7CiJk6Rygmr9zv2nScG"]'
{
    "hex" : 
"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",
    "complete" : true
}


And here's the decode of the signed transaction:

$ bitcoind decoderawtransaction 
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
{
    "txid" : "a01bff867229de4bb622b0ebdd8cd293d6b9ad2fb576612974ae89ed5798eb3e",
    "version" : 1,
    "locktime" : 0,
    "vin" : [
        {
            "txid" : 
"ec7d985ae265a3a79c68d852e0e52cf4177c3362d7a25fb718be82f980f39285",
            "vout" : 1,
            "scriptSig" : {
                "asm" : "0 
30440220781ae7e3e309289f53cc2c4016adfb5a1d0081157d4366b9f77f0358b7aeccbb022009c7297f60088b1815d6970c8e246e6b516ff8fce5e85de209004d8cc29e460201
 
3044022018a23405ca72c52222577f78c2356bdb8ba36259edb1320b90e2c31188e6317602201972db07bf5ef8e30221d3707ce6eb7ab748527ec8e7ca14241350920f03257f01
 
522103566474f987a012a69a08097253394ebd681454df29c3f1fb0495a5b45490f9282103927407ca158155d0d30366395ca9cdc7d93cfa0a5b22181374431c15aae7b3582102cff98aba464f5d4ebac5e6417f142326235f5a0a59708ba6231471cce4ee074753ae",
                "hex" : 
"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"
            },
            "sequence" : 4294967295
        }
    ],
    "vout" : [
        {
            "value" : 0.00050000,
            "n" : 0,
            "scriptPubKey" : {
                "asm" : "OP_DUP OP_HASH160 
5dafa18ab21debe3d20f2c39e88d630f822bd29e OP_EQUALVERIFY OP_CHECKSIG",
                "hex" : "76a9145dafa18ab21debe3d20f2c39e88d630f822bd29e88ac",
                "reqSigs" : 1,
                "type" : "pubkeyhash",
                "addresses" : [
                    "19YNEu4ZqX3nU9rJMuMcDy3pzFhactZPmk"
                ]
            }
        },
        {
            "value" : 0.00040000,
            "n" : 1,
            "scriptPubKey" : {
                "asm" : "OP_DUP OP_HASH160 
bad35cd767b657daa4a735b32e3d1f1dab52872d OP_EQUALVERIFY OP_CHECKSIG",
                "hex" : "76a914bad35cd767b657daa4a735b32e3d1f1dab52872d88ac",
                "reqSigs" : 1,
                "type" : "pubkeyhash",
                "addresses" : [
                    "1J2qtR7HBbE4rkNAgZCo4hZUEd2Z4jtSgz"
                ]
            }
        }
    ]
}


And now I'll try to transmit the transaction to the network:

$ bitcoind sendrawtransaction 
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
error: {"code":-22,"message":"TX rejected"}


Whoops!

So, what gives?

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