EVP_AEAD_AES_GCM_TAG_LEN
tag_len = EVP_AEAD_AES_GCM_TAG_LEN;
if (tag_len > EVP_AEAD_AES_GCM_TAG_LEN) {
unsigned char tag[EVP_AEAD_AES_GCM_TAG_LEN];
.overhead = EVP_AEAD_AES_GCM_TAG_LEN,
.max_tag_len = EVP_AEAD_AES_GCM_TAG_LEN,
.overhead = EVP_AEAD_AES_GCM_TAG_LEN,
.max_tag_len = EVP_AEAD_AES_GCM_TAG_LEN,