@shockpkg/ria-packager/esm/hasher/sha256.mjs

Package for creating Adobe AIR packages

import { createHash } from 'node:crypto';
import { Hasher } from "../hasher.mjs";

/**
 * HasherSha256 object.
 */
export class HasherSha256 extends Hasher {
  /**
   * Hasher stream.
   */
  _hash_ = createHash('sha256');

  /**
   * HasherSha256 constructor.
   */
  constructor() {
    super();
  }

  /**
   * The number of bytes in the hash digest.
   *
   * @returns Byte size.
   */
  get bytes() {
    return 32;
  }

  /**
   * Reset digest.
   */
  reset() {
    this._hash_ = createHash('sha256');
  }

  /**
   * Update with more data.
   *
   * @param data Data to be hashed.
   */
  update(data) {
    this._hash_.update(data);
  }

  /**
   * Finish digest.
   *
   * @returns Digest data.
   */
  digest() {
    const d = this._hash_.digest();
    return new Uint8Array(d.buffer, d.byteOffset, d.byteLength);
  }
}
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