[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › [local‑first/LocalAuth](https://evolu.dev/docs/api-reference/common/local-first/LocalAuth) › SecureStorage

Defined in: [packages/common/src/local-first/LocalAuth.ts:54](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/LocalAuth.ts#L54)

Secure storage interface that must be implemented by each platform.

## Properties

<a id="clearservice"></a>

### clearService

```ts
clearService: (options?: LocalAuthOptions) => Promise<void>;
```

Defined in: [packages/common/src/local-first/LocalAuth.ts:68](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/LocalAuth.ts#L68)

### deleteItem

```ts
deleteItem: (key: string, options?: LocalAuthOptions) => Promise<boolean>;
```

Defined in: [packages/common/src/local-first/LocalAuth.ts:64](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/LocalAuth.ts#L64)

### getAllItems

```ts
getAllItems: (options?: LocalAuthOptionsValues) => Promise<SensitiveInfoItem[]>;
```

Defined in: [packages/common/src/local-first/LocalAuth.ts:65](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/LocalAuth.ts#L65)

### getItem

```ts
getItem: (key: string, options?: LocalAuthOptionsValues) =>
  Promise<SensitiveInfoItem | null>;
```

Defined in: [packages/common/src/local-first/LocalAuth.ts:60](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/LocalAuth.ts#L60)

### setItem

```ts
setItem: (key: string, value: string, options?: LocalAuthOptions) =>
  Promise<MutationResult>;
```

Defined in: [packages/common/src/local-first/LocalAuth.ts:55](https://github.com/evoluhq/evolu/blob/e7144e2bbe9069362b62dec1b64a8aa922b8f1b0/packages/common/src/local-first/LocalAuth.ts#L55)