@trezor/connect/lib/api/firmware/calculateFirmwareHash.js

High-level javascript interface for Trezor hardware wallet.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.calculateFirmwareHash = void 0;
const blakejs_1 = require("blakejs");
const SIZE_T1 = (7 * 128 + 64) * 1024;
const SIZE_TT = 13 * 128 * 1024;
const calculateFirmwareHash = (major_version, fw, key) => {
    const size = major_version === 1 ? SIZE_T1 : SIZE_TT;
    const padding = size - fw.byteLength;
    if (padding < 0) {
        throw new Error('Firmware too big');
    }
    const data = new Uint8Array(new ArrayBuffer(size));
    data.set(new Uint8Array(fw));
    if (padding > 0) {
        const zeroBytes = Buffer.alloc(padding);
        zeroBytes.fill(Buffer.from('ff', 'hex'));
        data.set(zeroBytes, fw.byteLength);
    }
    return {
        hash: key && key.length > 0 ? (0, blakejs_1.blake2sHex)(data, key) : (0, blakejs_1.blake2sHex)(data),
        challenge: key ? key.toString('hex') : '',
    };
};
exports.calculateFirmwareHash = calculateFirmwareHash;
//# sourceMappingURL=calculateFirmwareHash.js.map