#鸿蒙通关秘籍#如何实现E类加密数据库的密钥管理？

利用SecretKeyObserver类来获取当前密钥的状态。当密钥被销毁后，调用closeEStore方法关闭E类数据库。解锁后，确保密钥恢复正常。具体实现示例如下：

typescript export class SecretKeyObserver { onLock(): void { this.lockStatuas = SecretStatus.Lock; this.storeManager.closeEStore(); }

onUnLock(): void { this.lockStatuas = SecretStatus.UnLock; }

getCurrentStatus(): number { return this.lockStatuas; }

initialize(storeManager: ECStoreManager): void { this.storeManager = storeManager; }

private lockStatuas: number = SecretStatus.UnLock; private storeManager: ECStoreManager; }