pub/, progs/: Add support for X448 key exchange, defined in RFC7748.

[catacomb] / progs / catcrypt.1

diff --git a/progs/catcrypt.1 b/progs/catcrypt.1
index e6e1534..698b2db 100644 (file)
--- a/progs/catcrypt.1
+++ b/progs/catcrypt.1
@@ -216,6 +216,18 @@ command
 (see
 .BR key (1))
 to generate the key.
+.TP
+.B x448
+This is Hamburg's Curve25519, a strong Diffie-Hellman using a specific
+elliptic curve.
+Use the
+.B x448
+algorithm of the
+.B key add
+command
+(see
+.BR key (1))
+to generate the key.
 .PP
 The bulk crypto transform is chosen based on the
 .B bulk