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feat: add ECKeyIdentifier.publicKeyAsHex close GH-6082 #6085

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Merged
Jack-Works merged 1 commit into from
Apr 15, 2022
Merged

feat: add ECKeyIdentifier.publicKeyAsHex close GH-6082 #6085

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10 changes: 10 additions & 0 deletions packages/shared-base/src/Identifier/type.ts
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import { decodeArrayBuffer } from '@dimensiondev/kit'
import { Convert } from 'pvtsutils'
import { Result, Ok, Err } from 'ts-results'
import { EnhanceableSite } from '../Site/type'

Expand Down Expand Up @@ -189,6 +190,7 @@ export class PostIVIdentifier extends Identifier {
}
}

const secp256k1ToHex = new Map<string, string>()
/**
* This class identify the point on an EC curve.
* ec_key:secp256k1/CompressedPoint
Expand All @@ -204,6 +206,14 @@ export class ECKeyIdentifier extends Identifier {
const normalized = this.encodedCompressedKey ?? this.compressedPoint.replace(/\//g, '|')
return `ec_key:${this.curve}/${normalized}`
}
get publicKeyAsHex() {
const realPoint = this.encodedCompressedKey ?? this.compressedPoint.replace(/\|/g, '/')
if (secp256k1ToHex.has(realPoint)) return secp256k1ToHex.get(realPoint)!

const hex = '0x' + Convert.ToHex(decodeArrayBuffer(realPoint))
secp256k1ToHex.set(realPoint, hex)
return hex
}
static [$fromString](str: string) {
const [curve, point] = str.split('/')
if (curve !== 'secp256k1') return null
Expand Down