44 lines
1.4 KiB
JavaScript
44 lines
1.4 KiB
JavaScript
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import { generateRandomSecretKey } from "@chainsafe/bls-keygen";
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import { SECRET_KEY_LENGTH } from "../constants.js";
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import { getContext } from "./context.js";
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import { PublicKey } from "./publicKey.js";
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import { Signature } from "./signature.js";
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import { bytesToHex, hexToBytes } from "../helpers/index.js";
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import { InvalidLengthError, ZeroSecretKeyError } from "../errors.js";
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export class SecretKey {
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constructor(value) {
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if (value.isZero()) {
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throw new ZeroSecretKeyError();
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}
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this.value = value;
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}
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static fromBytes(bytes) {
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if (bytes.length !== SECRET_KEY_LENGTH) {
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throw new InvalidLengthError("SecretKey", SECRET_KEY_LENGTH);
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}
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const context = getContext();
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const secretKey = new context.SecretKey();
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secretKey.deserialize(bytes);
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return new SecretKey(secretKey);
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}
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static fromHex(hex) {
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return this.fromBytes(hexToBytes(hex));
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}
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static fromKeygen(entropy) {
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const sk = generateRandomSecretKey(entropy);
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return this.fromBytes(sk);
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}
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sign(message) {
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return new Signature(this.value.sign(message));
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}
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toPublicKey() {
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return new PublicKey(this.value.getPublicKey());
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}
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toBytes() {
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return this.value.serialize();
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}
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toHex() {
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return bytesToHex(this.toBytes());
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}
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}
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