navio-blsct/dist/keys/childKey.js

TypeScript bindings for the `libblsct` library used by the [Navio](https://nav.io/) blockchain to construct confidential transactions based on the BLS12-381 curve.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ChildKey = void 0;
const blsct_1 = require("../blsct");
const scalar_1 = require("../scalar");
const txKey_1 = require("./txKey");
/** Represents a child key. A child key is a Scalar and introduces no new functionality; it serves purely as a semantic alias. BlindingKey, TokenKey and TxKey are exclusively derived from a ChildKey.
 *
 * Examples:
 * ```ts
 * const { Scalar, ChildKey } = require('navio-blsct')
 * const s = Scalar.random()
 * const ck = new ChildKey(s)
 * ck.toBlindingKey()
 * ck.toTokenKey()
 * ck.toTxKey()
 * ```
 */
class ChildKey extends scalar_1.Scalar {
    /**
     * Creates a new `ChildKey` derived from the given `Scalar`.
     *
     * @param obj - The `Scalar` to derive the `ChildKey` from.
     */
    constructor(obj) {
        if (obj === undefined || obj === null) {
            super(obj);
        }
        else {
            const childKeyObj = (0, blsct_1.fromSeedToChildKey)(obj.value());
            super(childKeyObj);
        }
    }
    /** Derives a ChildKey from a Scalar.
     *  @returns A new ChildKey instance derived from the provided Scalar.
     */
    toBlindingKey() {
        const obj = (0, blsct_1.fromChildKeyToBlindingKey)(this.value());
        return scalar_1.Scalar.fromObj(obj);
    }
    /** Derives a TokenKey from a ChildKey.
     *  @returns A new TokenKey instance derived from the ChildKey.
     */
    toTokenKey() {
        const obj = (0, blsct_1.fromChildKeyToTokenKey)(this.value());
        return scalar_1.Scalar.fromObj(obj);
    }
    /** Derives a TxKey from a ChildKey.
     *  @returns A new TxKey instance derived from the ChildKey.
     */
    toTxKey() {
        const obj = (0, blsct_1.fromChildKeyToTxKey)(this.value());
        return txKey_1.TxKey.fromObj(obj);
    }
}
exports.ChildKey = ChildKey;