#define CHACHA20_KEYLEN (CHACHA_KEY_SIZE)
#define CHACHA20_BLKLEN (1)
#define CHACHA20_IVLEN (CHACHA_CTR_SIZE)
-/* TODO(3.0) Figure out what flags are required */
-#define CHACHA20_FLAGS (EVP_CIPH_CUSTOM_IV | EVP_CIPH_ALWAYS_CALL_INIT)
+#define CHACHA20_FLAGS (PROV_CIPHER_FLAG_CUSTOM_IV)
static OSSL_FUNC_cipher_newctx_fn chacha20_newctx;
static OSSL_FUNC_cipher_freectx_fn chacha20_freectx;