# OH_CryptoSymCipher

<!--Kit: Crypto Architecture Kit-->
<!--Subsystem: Security-->
<!--Owner: @zxz--3-->
<!--Designer: @lanming-->
<!--Tester: @PAFT-->
<!--Adviser: @zengyawen-->

## Overview

Defines a symmetric encryption and decryption instance.

**Since**: 12

**Related module**: [CryptoSymCipherApi](capi-cryptosymcipherapi.md)

**Header file:** [crypto_sym_cipher.h](capi-crypto-sym-cipher-h.md)