diff --git a/bip-0352.mediawiki b/bip-0352.mediawiki
index def4d0b2..0cf63a9f 100644
--- a/bip-0352.mediawiki
+++ b/bip-0352.mediawiki
@@ -335,6 +335,7 @@ A scan and spend key pair using BIP32 derivation are defined (taking inspiration
If each of the checks in ''[[#scanning-silent-payment-eligible-transactions|Scanning silent payment eligible transactions]]'' passes, the receiving wallet must:
* Let ''A = A1 + A2 + ... + An'', where each ''Ai'' is the public key of an input from the ''[[#inputs-for-shared-secret-derivation|Inputs For Shared Secret Derivation]]'' list
+** If ''A'' is the point at infinity, skip the transaction
* Generate the ''input_hash'' with the smallest outpoint lexicographically and ''A'', using the method described above
* Let ''ecdh_shared_secret = input_hash·bscan·A''
* Check for outputs:
diff --git a/bip-0352/reference.py b/bip-0352/reference.py
index 7882ad1b..b4eaf945 100755
--- a/bip-0352/reference.py
+++ b/bip-0352/reference.py
@@ -300,6 +300,10 @@ if __name__ == "__main__":
add_to_wallet = []
if (len(input_pub_keys) > 0):
A_sum = reduce(lambda x, y: x + y, input_pub_keys)
+ if A_sum.get_bytes() is None:
+ # Input pubkeys sum is point at infinity -> skip tx
+ assert expected["outputs"] == []
+ continue
input_hash = get_input_hash([vin.outpoint for vin in vins], A_sum)
pre_computed_labels = {
(generate_label(b_scan, label) * G).get_bytes(False).hex(): generate_label(b_scan, label).hex()
diff --git a/bip-0352/send_and_receive_test_vectors.json b/bip-0352/send_and_receive_test_vectors.json
index c0288bc5..264f7bec 100644
--- a/bip-0352/send_and_receive_test_vectors.json
+++ b/bip-0352/send_and_receive_test_vectors.json
@@ -2713,6 +2713,48 @@
}
],
"receiving": [
+ {
+ "given": {
+ "vin": [
+ {
+ "txid": "3a286147b25e16ae80aff406f2673c6e565418c40f45c071245cdebc8a94174e",
+ "vout": 0,
+ "scriptSig": "",
+ "txinwitness": "024730440220085003179ce1a3a88ce0069aa6ea045e140761ab88c22a26ae2a8cfe983a6e4602204a8a39940f0735c8a4424270ac8da65240c261ab3fda9272f6d6efbf9cfea366012102557ef3e55b0a52489b4454c1169e06bdea43687a69c1f190eb50781644ab6975",
+ "prevout": {
+ "scriptPubKey": {
+ "hex": "00149d9e24f9fab4e35bf1a6df4b46cb533296ac0792"
+ }
+ }
+ },
+ {
+ "txid": "3a286147b25e16ae80aff406f2673c6e565418c40f45c071245cdebc8a94174e",
+ "vout": 1,
+ "scriptSig": "",
+ "txinwitness": "0247304402204586a68e1d97dd3c6928e3622799859f8c3b20c3c670cf654cc905c9be29fdb7022043fbcde1689f3f4045e8816caf6163624bd19e62e4565bc99f95c533e599782c012103557ef3e55b0a52489b4454c1169e06bdea43687a69c1f190eb50781644ab6975",
+ "prevout": {
+ "scriptPubKey": {
+ "hex": "00149860538b5575962776ed0814ae222c7d60c72d7b"
+ }
+ }
+ }
+ ],
+ "outputs": [
+ "0000000000000000000000000000000000000000000000000000000000000000"
+ ],
+ "key_material": {
+ "spend_priv_key": "0000000000000000000000000000000000000000000000000000000000000001",
+ "scan_priv_key": "0000000000000000000000000000000000000000000000000000000000000002"
+ },
+ "labels": []
+ },
+ "expected": {
+ "addresses": [
+ "sp1qqtrqglu5g8kh6mfsg4qxa9wq0nv9cauwfwxw70984wkqnw2uwz0w2qnehen8a7wuhwk9tgrzjh8gwzc8q2dlekedec5djk0js9d3d7qhnq6lqj3s"
+ ],
+ "outputs": []
+ }
+ }
]
}
]