Method performTranslate

src/Encoder/BlockCipher.js:175–193

* Performs encode or decode on given content. * @protected * @param {Chain} content * @param {boolean} isEncode True for encoding, false for decoding * @return {number[]|string|Uint8Array|Chain|Promise} Resulting content

(content, isEncode)

   * @return {number[]|string|Uint8Array|Chain|Promise} Resulting content
   */
  async performTranslate (content, isEncode) {
    const message = content.getBytes()
    const { algorithm, mode, key, padding, iv } = this.getSettingValues()

    try {
      // Try to encrypt or decrypt
      return await this.createCipher(
        algorithm, mode, key, iv, padding, isEncode, message)
    } catch (err) {
      // Catch invalid input errors
      if (!isEncode) {
        throw new InvalidInputError(
          `${algorithm} decryption failed, ` +
          'this may be due to malformed content')
      } else {
        throw new InvalidInputError(`${algorithm} encryption failed`)
      }
    }
  }

  /**
   * Creates message cipher using given algorithm.