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chore(payment): Implement silent payments #2269

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2af8978
chore(payment): Implement silent payments
jvgelder Oct 8, 2025
d6f3297
fix(crypto): Added missing tags
jvgelder Oct 8, 2025
52148d8
fix(p2sp): Function signature and output fixes
jvgelder Oct 8, 2025
77c07f7
fix(tests): Properly load fixtures
jvgelder Oct 8, 2025
bd2f200
chore(tests): Cleanup unused or redundant functions
jvgelder Oct 8, 2025
4042a59
chore(test): Clean up unused variables
jvgelder Oct 10, 2025
c8518f3
fix(test): Set k on deriveOutput
jvgelder Oct 10, 2025
4f52dde
chore(p2sp): Move main function to top and add lazy prop
jvgelder Oct 10, 2025
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21 changes: 21 additions & 0 deletions src/esm/crypto.js
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,9 @@ export const TAGS = [
'TapTweak',
'KeyAgg list',
'KeyAgg coefficient',
'BIP0352/Inputs',
'BIP0352/SharedSecret',
'BIP0352/Label',
];
/**
* A collection of tagged hash prefixes used in various BIP (Bitcoin Improvement Proposals)
Expand Down Expand Up @@ -108,6 +111,24 @@ export const TAGGED_HASH_PREFIXES = {
201, 4, 3, 77, 28, 136, 232, 200, 14, 34, 229, 61, 36, 86, 109, 100, 130,
78, 214, 66, 114, 129, 192, 145, 0, 249, 77, 205, 82, 201, 129,
]),
'BIP0352/Inputs': Uint8Array.from([
30, 123, 150, 235, 22, 10, 104, 129, 159, 151, 118, 75, 67, 213, 215, 126,
102, 89, 215, 88, 119, 157, 67, 168, 167, 117, 95, 91, 228, 90, 126, 51, 30,
123, 150, 235, 22, 10, 104, 129, 159, 151, 118, 75, 67, 213, 215, 126, 102,
89, 215, 88, 119, 157, 67, 168, 167, 117, 95, 91, 228, 90, 126, 51,
]),
'BIP0352/SharedSecret': Uint8Array.from([
159, 109, 128, 17, 88, 30, 182, 45, 114, 230, 19, 96, 76, 51, 13, 202, 42,
11, 211, 73, 226, 74, 70, 217, 162, 239, 36, 185, 169, 143, 65, 189, 159,
109, 128, 17, 88, 30, 182, 45, 114, 230, 19, 96, 76, 51, 13, 202, 42, 11,
211, 73, 226, 74, 70, 217, 162, 239, 36, 185, 169, 143, 65, 189,
]),
'BIP0352/Label': Uint8Array.from([
3, 73, 25, 70, 53, 194, 208, 62, 98, 212, 19, 186, 140, 205, 81, 152, 145,
144, 23, 161, 233, 156, 190, 105, 31, 90, 52, 169, 147, 119, 224, 149, 3,
73, 25, 70, 53, 194, 208, 62, 98, 212, 19, 186, 140, 205, 81, 152, 145, 144,
23, 161, 233, 156, 190, 105, 31, 90, 52, 169, 147, 119, 224, 149,
]),
};
/**
* Computes a tagged hash using the specified prefix and data.
Expand Down
16 changes: 15 additions & 1 deletion src/esm/payments/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,20 @@ import { p2sh } from './p2sh.js';
import { p2wpkh } from './p2wpkh.js';
import { p2wsh } from './p2wsh.js';
import { p2tr } from './p2tr.js';
export { embed, p2ms, p2pk, p2pkh, p2sh, p2wpkh, p2wsh, p2tr };
import { p2sp, scanForSilentPayments, deriveOutput } from './p2sp.js';
export {
embed,
p2ms,
p2pk,
p2pkh,
p2sh,
p2wpkh,
p2wsh,
p2tr,
p2sp,
// TODO how should we expose the two functions below?
scanForSilentPayments,
deriveOutput,
};
// TODO
// witness commitment
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