4/ Private keys were stored encrypted by Harmony. These keys were doubly encrypted using a passphrase and a key management service. No single machine had access to multiple plaintext keys. The system was designed to avoid persistent storage of plaintext secrets at rest.
4/私钥由Harmony加密存储。这些密钥使用密码短语和密钥管理服务进行双重加密。没有一台机器可以访问多个明文密钥。该系统旨在避免在静止状态下持续存储明文机密。