CRYPT_EAL_Pct CRYPT_EAL_PkeyCheck CRYPT_EAL_PkeyCmp CRYPT_EAL_PkeyComputeShareKey CRYPT_EAL_PkeyCopyCtx CRYPT_EAL_PkeyCtrl CRYPT_EAL_PkeyCtx CRYPT_EAL_PkeyDecrypt CRYPT_EAL_PkeyDupCtx CRYPT_EAL_PkeyEncrypt CRYPT_EAL_PkeyFreeCtx CRYPT_EAL_PkeyGen CRYPT_EAL_PkeyGetExtData CRYPT_EAL_PkeyGetId CRYPT_EAL_PkeyGetKeyBits CRYPT_EAL_PkeyGetKeyLen CRYPT_EAL_PkeyGetPara CRYPT_EAL_PkeyGetParaId CRYPT_EAL_PkeyGetPrv CRYPT_EAL_PkeyGetPub CRYPT_EAL_PkeyGetSecurityBits CRYPT_EAL_PkeyGetSignLen CRYPT_EAL_PkeyIsValidAlgId CRYPT_EAL_PkeyNewCtx CRYPT_EAL_PkeyPairCheck CRYPT_EAL_PkeySetExtData CRYPT_EAL_PkeySetPara CRYPT_EAL_PkeySetParaById CRYPT_EAL_PkeySetPrv CRYPT_EAL_PkeySetPub CRYPT_EAL_PkeySign CRYPT_EAL_PkeySignData CRYPT_EAL_PkeyUpRef CRYPT_EAL_PkeyVerify CRYPT_EAL_PkeyVerifyData

CRYPT_EAL_PkeyGetSignLen() uint32_t CRYPT_EAL_PkeyGetSignLen ( const CRYPT_EAL_PkeyCtx *  pkey ) Obtains the signature length of the key for signature, only support algorithm that can be signed. 参数 pkey [IN] Key session 返回值 Signature length, if successful. 0, if failed.