EVP_GCM_TLS_EXPLICIT_IV_LEN
if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;