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vindard/hash-from-preimage.ts

Last active February 14, 2022 18:02
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Convert a Lightning Network preimage to its payment hash
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hash-from-preimage.ts
import { createHash } from "crypto"
const hashFromPreImage = (preImage) => {
const preImageBuf = Buffer.from(preImage, "hex")
const sha256 = (buffer: Buffer) => createHash("sha256").update(buffer).digest("hex")
return sha256(preImageBuf)
}
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