# OH_CryptoSm2CiphertextSpec

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

## Overview

Defines a struct for SM2 ciphertext specifications.

**Since**: 20

**Related Module**: [CryptoAsymCipherApi](capi-cryptoasymcipherapi.md)

**Header file:** [crypto_asym_cipher.h](capi-crypto-asym-cipher-h.md)