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bip138: collect and deduplicate recipient keys across the backup

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Sjors Provoost
2026-09-22 14:52:10 +02:00
committed by Murch
parent 11a3be7458
commit bde776ecb8
2 changed files with 14 additions and 1 deletions
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3
bip-0138.md
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@@ -98,7 +98,8 @@ Note: in the following sections, the operator ⊕ refers to the bitwise XOR oper
### Secret generation ### Secret generation
- Let $p_1, p_2, \dots, p_n$, be the public keys in the descriptor/wallet policy, in - Let $p_1, p_2, \dots, p_n$, be the distinct public keys across all descriptor
and policy sets and all content items in the payload, in
increasing lexicographical order. The scheme is defined for any $n \geq 1$, increasing lexicographical order. The scheme is defined for any $n \geq 1$,
in particular it supports single-signature descriptors ($n = 1$). Each $p_i$ in particular it supports single-signature descriptors ($n = 1$). Each $p_i$
is the x-only-normalized root public key of one *allowed* key expression is the x-only-normalized root public key of one *allowed* key expression

12
bip-0138/test_vectors/recipient_keys.json
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@@ -91,5 +91,17 @@
"8b42cd4776376c82791b494155151f56c2d7b471e0c7a526a7ce60dd872e3867", "8b42cd4776376c82791b494155151f56c2d7b471e0c7a526a7ce60dd872e3867",
"ebd252ca0877aae09b9d058219682775aa3cbcd049c12f07832f2cf6a3b51708" "ebd252ca0877aae09b9d058219682775aa3cbcd049c12f07832f2cf6a3b51708"
] ]
},
{
"description": "Same root in several descriptor sets contributes once",
"descriptors": [
"tr(tpubDEPBvXvhta3pjVaKokqC3eeMQnszj9ehFaA2zD5nSdkaccwGAizu8jVB2NeSpvmP2P52MBoZvNCixqXRJnTyXx51FQzARR63tjxQSyP3Btw/0/*)",
"tr(tpubDEPBvXvhta3pjVaKokqC3eeMQnszj9ehFaA2zD5nSdkaccwGAizu8jVB2NeSpvmP2P52MBoZvNCixqXRJnTyXx51FQzARR63tjxQSyP3Btw/1/*)",
"tr(tpubDC5FSnBiZDMmhiuCmWAYsLwgLYrrT9rAqvTySfuCCrgsWz8wxMXUS9Tb9iVMvcRbvFcAHGkMD5Kx8koh4GquNGNTfohfk7pgjhaPCdXpoba/*)"
],
"expected_keys": [
"8b42cd4776376c82791b494155151f56c2d7b471e0c7a526a7ce60dd872e3867",
"ebd252ca0877aae09b9d058219682775aa3cbcd049c12f07832f2cf6a3b51708"
]
} }
] ]