Language: TypeScript
Label: safe
CWE: CWE-331 \u2014 Insufficient Entropy
The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

Code:
  static tryGetIdentifier(data: Buffer) {
    if (data.byteLength < 4) {
      throw new Error('unknown cryptor error. decryption failed');
    } else {
      return data.toString('utf8');
    }
  }