@ckb-ccc/core/dist/hasher/hasherKeecak256.js

Core of CCC - CKBer's Codebase

import { keccak_256 } from "@noble/hashes/sha3";
import { bytesFrom } from "../bytes/index.js";
import { hexFrom } from "../hex/index.js";
/**
 * @public
 */
export class HasherKeecak256 {
    /**
     * Creates an instance of Hasher.
     */
    constructor() {
        this.hasher = keccak_256.create();
    }
    /**
     * Updates the hash with the given data.
     *
     * @param data - The data to update the hash with.
     * @returns The current Hasher instance for chaining.
     *
     * @example
     * ```typescript
     * const hasher = new Hasher();
     * hasher.update("some data").update("more data");
     * const hash = hasher.digest();
     * ```
     */
    update(data) {
        this.hasher.update(bytesFrom(data));
        return this;
    }
    /**
     * Finalizes the hash and returns the digest as a hexadecimal string.
     *
     * @returns The hexadecimal string representation of the hash.
     *
     * @example
     * ```typescript
     * const hasher = new Hasher();
     * hasher.update("some data");
     * const hash = hasher.digest(); // Outputs something like "0x..."
     * ```
     */
    digest() {
        return hexFrom(this.hasher.digest());
    }
}