.\"
.\" This file is part of Trivial IP Encryption (TrIPE).
.\"
-.\" TrIPE is free software; you can redistribute it and/or modify
-.\" it under the terms of the GNU General Public License as published by
-.\" the Free Software Foundation; either version 2 of the License, or
-.\" (at your option) any later version.
+.\" TrIPE is free software: you can redistribute it and/or modify it under
+.\" the terms of the GNU General Public License as published by the Free
+.\" Software Foundation; either version 3 of the License, or (at your
+.\" option) any later version.
.\"
-.\" TrIPE is distributed in the hope that it will be useful,
-.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
-.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-.\" GNU General Public License for more details.
+.\" TrIPE is distributed in the hope that it will be useful, but WITHOUT
+.\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+.\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+.\" for more details.
.\"
.\" You should have received a copy of the GNU General Public License
-.\" along with TrIPE; if not, write to the Free Software Foundation,
-.\" Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+.\" along with TrIPE. If not, see <https://www.gnu.org/licenses/>.
.
.\"--------------------------------------------------------------------------
.so ../common/defs.man \" @@@PRE@@@
and the desired tag length in bits. The default is
.IB hash \-hmac
at half the underlying hash function's output length.
+If the MAC's name contains a
+.RB ` / '
+character,
+e.g.,
+.RB ` sha512/256 ',
+then an
+.I additional
+.RB ` / '
+and the tag size is required to disambiguate,
+so, e.g.,
+one might write
+.RB ` sha512/256/256 '.
.TP
.B mgf
A `mask-generation function', used in the key-exchange. The default is