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.\"
.\" Copyright (c) 2002
.\" Mark R V Murray. All rights reserved.
.\"
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $FreeBSD$
.\" "
.Dd February 6, 2002
.Dt RIJNDAEL 9
.Os
.Sh NAME
.Nm rijndael_makeKey ,
.Nm rijndael_cipherInit ,
.Nm rijndael_blockEncrypt ,
.Nm rijndael_padEncrypt ,
.Nm rijndael_blockDecrypt ,
.Nm rijndael_padDecrypt
.Nd AES encryption
.Sh SYNOPSIS
.In sys/types.h
.In crypto/rijndael.h
.Ft int
.Fo rijndael_makeKey
.Fa "keyInstance *key"
.Fa "uint8_t direction"
.Fa "int keyLen"
.Fa "char *keyMaterial"
.Fc
.Ft int
.Fo rijndael_cipherInit
.Fa "cipherInstance *cipher"
.Fa "uint8_t mode"
.Fa "char *IV"
.Fc
.Ft int
.Fo rijndael_blockEncrypt
.Fa "cipherInstance *cipher"
.Fa "keyInstance *key"
.Fa "uint8_t *input"
.Fa "int inputLen"
.Fa "uint8_t *outBuffer"
.Fc
.Ft int
.Fo rijndael_padEncrypt
.Fa "cipherInstance *cipher"
.Fa "keyInstance *key"
.Fa "uint8_t *input"
.Fa "int inputOctets"
.Fa "uint8_t *outBuffer"
.Fc
.Ft int
.Fo rijndael_blockDecrypt
.Fa "cipherInstance *cipher"
.Fa "keyInstance *key"
.Fa "uint8_t *input"
.Fa "int inputLen"
.Fa "uint8_t *outBuffer"
.Fc
.Ft int
.Fo rijndael_padDecrypt
.Fa "cipherInstance *cipher"
.Fa "keyInstance *key"
.Fa "uint8_t *input"
.Fa "int inputOctets"
.Fa "uint8_t *outBuffer"
.Fc
.Sh DESCRIPTION
The
.Fn rijndael_makeKey
function is used to set up the key schedule in
.Fa key .
The
.Fa direction
(which may be
.Dv DIR_ENCRYPT
or
.Dv DIR_DECRYPT )
specifies the intended use of the key.
The length of the key (in bits) is given in
.Fa keyLen ,
and must be 128, 192 or 256.
The actual key is supplied in the buffer pointed to by
.Fa keyMaterial .
This material may be raw binary data,
or an ASCII string containing a hexadecimal rendition
of the raw binary data,
dependent on a compile-time option in the
.Nm
sources,
.Dv BINARY_KEY_MATERIAL .
.Sh RETURN VALUES
The
.Fn rijndael_makeKey
function will return
.Dv BAD_KEY_INSTANCE
if a
.Dv NULL
.Fa key
is passed,
.Dv BAD_KEY_DIR
if
.Fa direction
is not
.Dv DIR_ENCRYPT
or
.Dv DIR_DECRYPT ,
.Dv BAD_KEY_MAT
if the key materials are not a hexadecimal string
(and binary keys are not set),
and
.Dv TRUE
otherwise.
.Sh AUTHORS
.An Mark R V Murray
|
