@ledgerhq/coin-aptos/lib-es/network/index.js

Ledger Aptos Coin integration

import { AccountAddress, Ed25519PublicKey, Ed25519Signature, generateSigningMessageForTransaction, } from "@aptos-labs/ts-sdk";
import { sha3_256 as sha3Hash } from "@noble/hashes/sha3";
import { combineSignedTransaction } from "../logic/combine";
export * from "./client";
export async function signTransaction(signerContext, account, deviceId, rawTxn) {
    const { freshAddressPath: derivationPath } = account;
    if (!account.xpub) {
        throw Error("Account must have a public signing key");
    }
    const publicKey = Buffer.from(AccountAddress.from(account.xpub).toUint8Array());
    const hash = sha3Hash.create();
    hash.update(publicKey.toString("hex"));
    hash.update("\x00");
    const signingMessage = generateSigningMessageForTransaction({
        rawTransaction: rawTxn,
    });
    const response = await signerContext(deviceId, async (signer) => await signer.signTransaction(derivationPath, Buffer.from(signingMessage)));
    const signature = new Ed25519Signature(response.signature.toString("hex"));
    const pubkey = new Ed25519PublicKey(publicKey.toString("hex"));
    return combineSignedTransaction(rawTxn, signature, pubkey);
}
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