@celo/wallet-local
Version:
Local wallet implementation
94 lines • 4.34 kB
JavaScript
;
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o[k2] = m[k];
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o["default"] = v;
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if (mod && mod.__esModule) return mod;
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.LocalSigner = void 0;
const address_1 = require("@celo/utils/lib/address");
const ecdh_1 = require("@celo/utils/lib/ecdh");
const ecies_1 = require("@celo/utils/lib/ecies");
const sign_typed_data_utils_1 = require("@celo/utils/lib/sign-typed-data-utils");
const wallet_base_1 = require("@celo/wallet-base");
const ethUtil = __importStar(require("@ethereumjs/util"));
/**
* Signs the EVM transaction using the provided private key
*/
class LocalSigner {
constructor(privateKey) {
this.privateKey = (0, address_1.ensureLeading0x)(privateKey);
}
getNativeKey() {
return this.privateKey;
}
signTransaction(addToV, encodedTx) {
return __awaiter(this, void 0, void 0, function* () {
return (0, wallet_base_1.signTransaction)((0, wallet_base_1.getHashFromEncoded)(encodedTx.rlpEncode), this.privateKey, addToV);
});
}
signPersonalMessage(data) {
return __awaiter(this, void 0, void 0, function* () {
// ecsign needs a privateKey without 0x
const trimmedKey = (0, address_1.trimLeading0x)(this.privateKey);
const pkBuffer = Buffer.from(trimmedKey, 'hex');
const dataBuff = ethUtil.toBuffer((0, address_1.ensureLeading0x)(data));
const msgHashBuff = ethUtil.hashPersonalMessage(dataBuff);
const sig = ethUtil.ecsign(msgHashBuff, pkBuffer);
return {
v: Number(sig.v),
r: Buffer.from(sig.r),
s: Buffer.from(sig.s),
};
});
}
signTypedData(typedData) {
return __awaiter(this, void 0, void 0, function* () {
const dataBuff = (0, sign_typed_data_utils_1.generateTypedDataHash)(typedData);
const trimmedKey = (0, address_1.trimLeading0x)(this.privateKey);
const pkBuffer = Buffer.from(trimmedKey, 'hex');
const sig = ethUtil.ecsign(dataBuff, pkBuffer);
return {
v: Number(sig.v),
r: Buffer.from(sig.r),
s: Buffer.from(sig.s),
};
});
}
decrypt(ciphertext) {
const decryptedPlaintext = Buffer.from((0, ecies_1.Decrypt)(Buffer.from((0, address_1.trimLeading0x)(this.privateKey), 'hex'), ciphertext));
return Promise.resolve(decryptedPlaintext);
}
computeSharedSecret(publicKey) {
return Promise.resolve((0, ecdh_1.computeSharedSecret)(this.privateKey, publicKey));
}
}
exports.LocalSigner = LocalSigner;
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