PROV_AES_GCM_CTX
PROV_AES_GCM_CTX *ctx;
PROV_AES_GCM_CTX *ctx = provctx;
PROV_AES_GCM_CTX *dctx = NULL;
PROV_AES_GCM_CTX *ctx = (PROV_AES_GCM_CTX *)vctx;
PROV_AES_GCM_CTX *actx = (PROV_AES_GCM_CTX *)ctx;