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refactor: remove duplicate function not used (#399)

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## Summary

Remove `compressedPubKeyToEthereumAddress` and the `crypto.ts` because
the function is not being used and it has been already defined in the
file `datahaven.ts`.

## What changed

* Deleted the file `test/launcher/utils/crypto.ts` as the function what
the only function defined in the file
* Update `index.ts` to reflect the change mentioned above

Co-authored-by: Ahmad Kaouk <56095276+ahmadkaouk@users.noreply.github.com>
This commit is contained in:
undercover-cactus 2026-01-20 08:32:05 +01:00 committed by GitHub
parent db4608f9dd
commit 6e4cdf31b1
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2 changed files with 0 additions and 43 deletions
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42
test/launcher/utils/crypto.ts
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@ -1,42 +0,0 @@
import { secp256k1 } from "@noble/curves/secp256k1";
import { keccak_256 } from "@noble/hashes/sha3";
import type { Hex } from "viem";
/**
* Converts a compressed ECDSA public key to an Ethereum address.
* Used for converting BEEFY authorities public keys to Ethereum addresses.
*
* @param compressedPubKey - The compressed public key (33 bytes)
* @returns The Ethereum address derived from the public key
*/
export const compressedPubKeyToEthereumAddress = (compressedPubKey: Hex): Hex => {
// Remove 0x prefix if present
const pubKeyBytes = compressedPubKey.startsWith("0x")
? compressedPubKey.slice(2)
: compressedPubKey;
// Convert hex string to Uint8Array
const matches = pubKeyBytes.match(/.{1,2}/g);
if (!matches) {
throw new Error("Invalid hex string format");
}
const compressedBytes = new Uint8Array(matches.map((byte) => Number.parseInt(byte, 16)));
// Get the uncompressed point
const point = secp256k1.ProjectivePoint.fromHex(compressedBytes);
const uncompressedBytes = point.toRawBytes(false); // false = uncompressed
// Remove the first byte (0x04) which indicates uncompressed format
const publicKeyBytes = uncompressedBytes.slice(1);
// Keccak256 hash of the public key
const hash = keccak_256(publicKeyBytes);
// Take the last 20 bytes as the Ethereum address
const address = hash.slice(-20);
// Convert to hex string with 0x prefix
return `0x${Array.from(address)
.map((b) => b.toString(16).padStart(2, "0"))
.join("")}` as Hex;
};

1
test/launcher/utils/index.ts
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@ -1,3 +1,2 @@
export * from "./checks";
export * from "./constants";
export * from "./crypto";