@keplr-ewallet/ewallet-sdk-eth/dist/utils/signature.js

import { pad, toHex } from "viem";
import { secp256k1 } from "@noble/curves/secp256k1";
export const encodeEthereumSignature = (signOutput, chainId) => {
    const { sig, is_high } = signOutput;
    const bigRHexWithout0x = sig.big_r.replace(/^0x/, "");
    const point = secp256k1.Point.fromHex(bigRHexWithout0x);
    const r = pad(toHex(point.x), { dir: "left", size: 32 });
    const isYOdd = point.y % BigInt(2) === BigInt(1);
    let v = isYOdd ? 28 : 27;
    if (is_high) {
        v = v === 27 ? 28 : 27;
    }
    if (chainId != null) {
        v += chainId * 2 + 8;
    }
    const sHex = ("0x" + sig.s.replace(/^0x/, ""));
    const s = pad(sHex, { dir: "left", size: 32 });
    return { r, s, v: BigInt(v) };
};
//# sourceMappingURL=signature.js.map