53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
|
import assert from "assert";
|
||
|
|
import {SecretKeyType} from "@chainsafe/eth2-bls-wasm";
|
||
|
|
import {generateRandomSecretKey} from "@chainsafe/bls-keygen";
|
||
|
|
import {SECRET_KEY_LENGTH} from "../constants";
|
||
|
|
import {getContext} from "./context";
|
||
|
|
import {PublicKey} from "./publicKey";
|
||
|
|
import {Signature} from "./signature";
|
||
|
|
import {bytesToHex, hexToBytes} from "../helpers/utils";
|
||
|
|
|
||
|
|
export class PrivateKey {
|
||
|
|
readonly value: SecretKeyType;
|
||
|
|
|
||
|
|
constructor(value: SecretKeyType) {
|
||
|
|
this.value = value;
|
||
|
|
}
|
||
|
|
|
||
|
|
static fromBytes(bytes: Uint8Array): PrivateKey {
|
||
|
|
assert(bytes.length === SECRET_KEY_LENGTH, "Private key should have 32 bytes");
|
||
|
|
const context = getContext();
|
||
|
|
const secretKey = new context.SecretKey();
|
||
|
|
secretKey.deserialize(Buffer.from(bytes));
|
||
|
|
return new PrivateKey(secretKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
static fromHex(hex: string): PrivateKey {
|
||
|
|
return this.fromBytes(hexToBytes(hex));
|
||
|
|
}
|
||
|
|
|
||
|
|
static fromKeygen(entropy?: Uint8Array): PrivateKey {
|
||
|
|
return this.fromBytes(generateRandomSecretKey(Buffer.from(entropy)));
|
||
|
|
}
|
||
|
|
|
||
|
|
getValue(): SecretKeyType {
|
||
|
|
return this.value;
|
||
|
|
}
|
||
|
|
|
||
|
|
signMessage(message: Uint8Array): Signature {
|
||
|
|
return new Signature(this.value.sign(message));
|
||
|
|
}
|
||
|
|
|
||
|
|
toPublicKey(): PublicKey {
|
||
|
|
return new PublicKey(this.value.getPublicKey());
|
||
|
|
}
|
||
|
|
|
||
|
|
toBytes(): Buffer {
|
||
|
|
return Buffer.from(this.value.serialize());
|
||
|
|
}
|
||
|
|
|
||
|
|
toHex(): string {
|
||
|
|
return bytesToHex(this.toBytes());
|
||
|
|
}
|
||
|
|
}
|