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BIP-352: sending: add step to fail if input privkeys sum a is zero

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The test vector data was generated with a Python script
(see bc15ea8d0f/contrib/silentpayments/submit_input_pubkeys_infinity_tx.py),
leading to the following output:

---------------------------------------------------------------------------------------------------------
     Privkey 1: a6df6a0bb448992a301df4258e06a89fe7cf7146f59ac3bd5ff26083acb22ceb
     Privkey 2: 592095f44bb766d5cfe20bda71f9575ed2df6b9fb9addc7e5fdffe0923841456
      Pubkey 1: 02557ef3e55b0a52489b4454c1169e06bdea43687a69c1f190eb50781644ab6975
      Pubkey 2: 03557ef3e55b0a52489b4454c1169e06bdea43687a69c1f190eb50781644ab6975
scriptPubKey 1: 00149d9e24f9fab4e35bf1a6df4b46cb533296ac0792
scriptPubKey 2: 00149860538b5575962776ed0814ae222c7d60c72d7b
     Address 1: tb1qnk0zf706kn34hudxma95dj6nx2t2cpujz7j5t5
     Address 2: tb1qnps98z64wktzwahdpq22ug3v04svwttm7gs8wn
-> Funding tx submitted: 3a286147b25e16ae80aff406f2673c6e565418c40f45c071245cdebc8a94174e

Taproot output address for spending tx: tb1pqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqkgkkf5
-> Spending tx submitted: fe788cf6578d547819def43d79e6c8f0153d4885f5a343d12bd03f34507aabd6
---------------------------------------------------------------------------------------------------------
This commit is contained in:
Sebastian Falbesoner
2024-06-22 01:18:37 +02:00
parent 70a714372f
commit 47033c62dc
3 changed files with 50 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
bip-0352/reference.py
View File

@@ -127,6 +127,9 @@ def create_outputs(input_priv_keys: List[Tuple[ECKey, bool]], outpoints: List[CO
negated_keys.append(k)
a_sum = sum(negated_keys)
if not a_sum.valid:
# Input privkeys sum is zero -> fail
return []
input_hash = get_input_hash(outpoints, a_sum * G)
silent_payment_groups: Dict[ECPubKey, List[ECPubKey]] = {}
for recipient in recipients:

47
bip-0352/send_and_receive_test_vectors.json
View File

@@ -2669,5 +2669,50 @@
}
}
]
},
{
"comment": "Input keys sum up to zero / point at infinity: sending fails, receiver skips tx",
"sending": [
{
"given": {
"vin": [
{
"txid": "3a286147b25e16ae80aff406f2673c6e565418c40f45c071245cdebc8a94174e",
"vout": 0,
"scriptSig": "",
"txinwitness": "024730440220085003179ce1a3a88ce0069aa6ea045e140761ab88c22a26ae2a8cfe983a6e4602204a8a39940f0735c8a4424270ac8da65240c261ab3fda9272f6d6efbf9cfea366012102557ef3e55b0a52489b4454c1169e06bdea43687a69c1f190eb50781644ab6975",
"prevout": {
"scriptPubKey": {
"hex": "00149d9e24f9fab4e35bf1a6df4b46cb533296ac0792"
}
},
"private_key": "a6df6a0bb448992a301df4258e06a89fe7cf7146f59ac3bd5ff26083acb22ceb"
},
{
"txid": "3a286147b25e16ae80aff406f2673c6e565418c40f45c071245cdebc8a94174e",
"vout": 1,
"scriptSig": "",
"txinwitness": "0247304402204586a68e1d97dd3c6928e3622799859f8c3b20c3c670cf654cc905c9be29fdb7022043fbcde1689f3f4045e8816caf6163624bd19e62e4565bc99f95c533e599782c012103557ef3e55b0a52489b4454c1169e06bdea43687a69c1f190eb50781644ab6975",
"prevout": {
"scriptPubKey": {
"hex": "00149860538b5575962776ed0814ae222c7d60c72d7b"
}
},
"private_key": "592095f44bb766d5cfe20bda71f9575ed2df6b9fb9addc7e5fdffe0923841456"
}
],
"recipients": [
"sp1qqtrqglu5g8kh6mfsg4qxa9wq0nv9cauwfwxw70984wkqnw2uwz0w2qnehen8a7wuhwk9tgrzjh8gwzc8q2dlekedec5djk0js9d3d7qhnq6lqj3s"
]
},
"expected": {
"outputs": [
[]
]
}
}
],
"receiving": [
]
}
]
]