-.\" $OpenBSD: X25519.3,v 1.3 2018/03/30 18:38:22 schwarze Exp $
+.\" $OpenBSD: X25519.3,v 1.4 2018/08/10 17:28:48 jsing Exp $
.\" contains some text from: BoringSSL curve25519.h, curve25519.c
.\" content also checked up to: OpenSSL f929439f Mar 15 12:19:16 2018 +0000
.\"
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
-.Dd $Mdocdate: March 30 2018 $
+.Dd $Mdocdate: August 10 2018 $
.Dt X25519 3
.Os
.Sh NAME
.Nm X25519_keypair
.Nd Elliptic Curve Diffie-Hellman primitive based on Curve25519
.Sh SYNOPSIS
+.In openssl/curve25519.h
.Ft int
.Fo X25519
.Fa "uint8_t out_shared_key[X25519_KEY_LENGTH]"