# OH_CryptoSymKey

> phone 12+ | 2in1 13+ | tablet 12+ | tv 19+ | wearable 18+

```c
typedef struct OH_CryptoSymKey OH_CryptoSymKey
```

## 概述

> phone | 2in1 | tablet | tv | wearable

对称密钥结构体，表示对称密钥。

**起始版本：** 12

**相关模块：** [CryptoSymKeyApi](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-cryptosymkeyapi)

**所在头文件：** [crypto_sym_key.h](https://developer.huawei.com/consumer/cn/doc/harmonyos-references/capi-crypto-sym-key-h)