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-rw-r--r--src/libstrongswan/plugins/cmac/Makefile.am3
-rw-r--r--src/libstrongswan/plugins/cmac/Makefile.in22
-rw-r--r--src/libstrongswan/plugins/cmac/cmac.c127
-rw-r--r--src/libstrongswan/plugins/cmac/cmac.h60
-rw-r--r--src/libstrongswan/plugins/cmac/cmac_plugin.c3
-rw-r--r--src/libstrongswan/plugins/cmac/cmac_prf.c121
-rw-r--r--src/libstrongswan/plugins/cmac/cmac_prf.h50
-rw-r--r--src/libstrongswan/plugins/cmac/cmac_signer.c159
-rw-r--r--src/libstrongswan/plugins/cmac/cmac_signer.h47
9 files changed, 129 insertions, 463 deletions
diff --git a/src/libstrongswan/plugins/cmac/Makefile.am b/src/libstrongswan/plugins/cmac/Makefile.am
index ce0104f11..5cac3959c 100644
--- a/src/libstrongswan/plugins/cmac/Makefile.am
+++ b/src/libstrongswan/plugins/cmac/Makefile.am
@@ -10,7 +10,6 @@ plugin_LTLIBRARIES = libstrongswan-cmac.la
endif
libstrongswan_cmac_la_SOURCES = \
- cmac_plugin.h cmac_plugin.c cmac.h cmac.c \
- cmac_prf.h cmac_prf.c cmac_signer.h cmac_signer.c
+ cmac_plugin.h cmac_plugin.c cmac.h cmac.c
libstrongswan_cmac_la_LDFLAGS = -module -avoid-version
diff --git a/src/libstrongswan/plugins/cmac/Makefile.in b/src/libstrongswan/plugins/cmac/Makefile.in
index 093e63f32..eba059a29 100644
--- a/src/libstrongswan/plugins/cmac/Makefile.in
+++ b/src/libstrongswan/plugins/cmac/Makefile.in
@@ -49,6 +49,7 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/config/libtool.m4 \
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
$(ACLOCAL_M4)
mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
CONFIG_CLEAN_FILES =
CONFIG_CLEAN_VPATH_FILES =
am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
@@ -75,15 +76,14 @@ am__base_list = \
am__installdirs = "$(DESTDIR)$(plugindir)"
LTLIBRARIES = $(noinst_LTLIBRARIES) $(plugin_LTLIBRARIES)
libstrongswan_cmac_la_LIBADD =
-am_libstrongswan_cmac_la_OBJECTS = cmac_plugin.lo cmac.lo cmac_prf.lo \
- cmac_signer.lo
+am_libstrongswan_cmac_la_OBJECTS = cmac_plugin.lo cmac.lo
libstrongswan_cmac_la_OBJECTS = $(am_libstrongswan_cmac_la_OBJECTS)
libstrongswan_cmac_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
$(libstrongswan_cmac_la_LDFLAGS) $(LDFLAGS) -o $@
@MONOLITHIC_FALSE@am_libstrongswan_cmac_la_rpath = -rpath $(plugindir)
@MONOLITHIC_TRUE@am_libstrongswan_cmac_la_rpath =
-DEFAULT_INCLUDES = -I.@am__isrc@
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
depcomp = $(SHELL) $(top_srcdir)/depcomp
am__depfiles_maybe = depfiles
am__mv = mv -f
@@ -109,6 +109,7 @@ AUTOCONF = @AUTOCONF@
AUTOHEADER = @AUTOHEADER@
AUTOMAKE = @AUTOMAKE@
AWK = @AWK@
+BFDLIB = @BFDLIB@
BTLIB = @BTLIB@
CC = @CC@
CCDEPMODE = @CCDEPMODE@
@@ -203,11 +204,14 @@ build_os = @build_os@
build_vendor = @build_vendor@
builddir = @builddir@
c_plugins = @c_plugins@
+charon_natt_port = @charon_natt_port@
+charon_plugins = @charon_plugins@
+charon_udp_port = @charon_udp_port@
clearsilver_LIBS = @clearsilver_LIBS@
datadir = @datadir@
datarootdir = @datarootdir@
dbusservicedir = @dbusservicedir@
-default_pkcs11 = @default_pkcs11@
+dev_headers = @dev_headers@
docdir = @docdir@
dvidir = @dvidir@
exec_prefix = @exec_prefix@
@@ -224,11 +228,12 @@ imcvdir = @imcvdir@
includedir = @includedir@
infodir = @infodir@
install_sh = @install_sh@
+ipsec_script = @ipsec_script@
+ipsec_script_upper = @ipsec_script_upper@
ipsecdir = @ipsecdir@
ipsecgroup = @ipsecgroup@
ipseclibdir = @ipseclibdir@
ipsecuser = @ipsecuser@
-libcharon_plugins = @libcharon_plugins@
libdir = @libdir@
libexecdir = @libexecdir@
linux_headers = @linux_headers@
@@ -244,6 +249,7 @@ mkdir_p = @mkdir_p@
nm_CFLAGS = @nm_CFLAGS@
nm_LIBS = @nm_LIBS@
nm_ca_dir = @nm_ca_dir@
+nm_plugins = @nm_plugins@
oldincludedir = @oldincludedir@
openac_plugins = @openac_plugins@
p_plugins = @p_plugins@
@@ -253,7 +259,6 @@ pdfdir = @pdfdir@
piddir = @piddir@
pki_plugins = @pki_plugins@
plugindir = @plugindir@
-pluto_plugins = @pluto_plugins@
pool_plugins = @pool_plugins@
prefix = @prefix@
program_transform_name = @program_transform_name@
@@ -286,8 +291,7 @@ AM_CFLAGS = -rdynamic
@MONOLITHIC_TRUE@noinst_LTLIBRARIES = libstrongswan-cmac.la
@MONOLITHIC_FALSE@plugin_LTLIBRARIES = libstrongswan-cmac.la
libstrongswan_cmac_la_SOURCES = \
- cmac_plugin.h cmac_plugin.c cmac.h cmac.c \
- cmac_prf.h cmac_prf.c cmac_signer.h cmac_signer.c
+ cmac_plugin.h cmac_plugin.c cmac.h cmac.c
libstrongswan_cmac_la_LDFLAGS = -module -avoid-version
all: all-am
@@ -375,8 +379,6 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cmac.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cmac_plugin.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cmac_prf.Plo@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cmac_signer.Plo@am__quote@
.c.o:
@am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
diff --git a/src/libstrongswan/plugins/cmac/cmac.c b/src/libstrongswan/plugins/cmac/cmac.c
index 5ec7073c7..725d02d76 100644
--- a/src/libstrongswan/plugins/cmac/cmac.c
+++ b/src/libstrongswan/plugins/cmac/cmac.c
@@ -18,20 +18,23 @@
#include "cmac.h"
#include <debug.h>
+#include <crypto/mac.h>
+#include <crypto/prfs/mac_prf.h>
+#include <crypto/signers/mac_signer.h>
-typedef struct private_cmac_t private_cmac_t;
+typedef struct private_mac_t private_mac_t;
/**
- * Private data of a cmac_t object.
+ * Private data of a mac_t object.
*
* The variable names are the same as in the RFC.
*/
-struct private_cmac_t {
+struct private_mac_t {
/**
* Public interface.
*/
- cmac_t public;
+ mac_t public;
/**
* Block size, in bytes
@@ -72,7 +75,7 @@ struct private_cmac_t {
/**
* process supplied data, but do not run final operation
*/
-static void update(private_cmac_t *this, chunk_t data)
+static bool update(private_mac_t *this, chunk_t data)
{
chunk_t iv;
@@ -80,7 +83,7 @@ static void update(private_cmac_t *this, chunk_t data)
{ /* no complete block (or last block), just copy into remaining */
memcpy(this->remaining + this->remaining_bytes, data.ptr, data.len);
this->remaining_bytes += data.len;
- return;
+ return TRUE;
}
iv = chunk_alloca(this->b);
@@ -97,7 +100,10 @@ static void update(private_cmac_t *this, chunk_t data)
this->b - this->remaining_bytes);
data = chunk_skip(data, this->b - this->remaining_bytes);
memxor(this->t, this->remaining, this->b);
- this->k->encrypt(this->k, chunk_create(this->t, this->b), iv, NULL);
+ if (!this->k->encrypt(this->k, chunk_create(this->t, this->b), iv, NULL))
+ {
+ return FALSE;
+ }
/* process blocks M_2 ... M_n-1 */
while (data.len > this->b)
@@ -105,18 +111,23 @@ static void update(private_cmac_t *this, chunk_t data)
memcpy(this->remaining, data.ptr, this->b);
data = chunk_skip(data, this->b);
memxor(this->t, this->remaining, this->b);
- this->k->encrypt(this->k, chunk_create(this->t, this->b), iv, NULL);
+ if (!this->k->encrypt(this->k, chunk_create(this->t, this->b), iv, NULL))
+ {
+ return FALSE;
+ }
}
/* store remaining bytes of block M_n */
memcpy(this->remaining, data.ptr, data.len);
this->remaining_bytes = data.len;
+
+ return TRUE;
}
/**
* process last block M_last
*/
-static void final(private_cmac_t *this, u_int8_t *out)
+static bool final(private_mac_t *this, u_int8_t *out)
{
chunk_t iv;
@@ -153,29 +164,38 @@ static void final(private_cmac_t *this, u_int8_t *out)
* T := AES-128(K,T);
*/
memxor(this->t, this->remaining, this->b);
- this->k->encrypt(this->k, chunk_create(this->t, this->b), iv, NULL);
+ if (!this->k->encrypt(this->k, chunk_create(this->t, this->b), iv, NULL))
+ {
+ return FALSE;
+ }
memcpy(out, this->t, this->b);
/* reset state */
memset(this->t, 0, this->b);
this->remaining_bytes = 0;
+
+ return TRUE;
}
-METHOD(cmac_t, get_mac, void,
- private_cmac_t *this, chunk_t data, u_int8_t *out)
+METHOD(mac_t, get_mac, bool,
+ private_mac_t *this, chunk_t data, u_int8_t *out)
{
/* update T, do not process last block */
- update(this, data);
+ if (!update(this, data))
+ {
+ return FALSE;
+ }
if (out)
{ /* if not in append mode, process last block and output result */
- final(this, out);
+ return final(this, out);
}
+ return TRUE;
}
-METHOD(cmac_t, get_block_size, size_t,
- private_cmac_t *this)
+METHOD(mac_t, get_mac_size, size_t,
+ private_mac_t *this)
{
return this->b;
}
@@ -222,8 +242,8 @@ static void derive_key(chunk_t chunk)
}
}
-METHOD(cmac_t, set_key, void,
- private_cmac_t *this, chunk_t key)
+METHOD(mac_t, set_key, bool,
+ private_mac_t *this, chunk_t key)
{
chunk_t resized, iv, l;
@@ -236,8 +256,11 @@ METHOD(cmac_t, set_key, void,
{ /* use cmac recursively to resize longer or shorter keys */
resized = chunk_alloca(this->b);
memset(resized.ptr, 0, resized.len);
- set_key(this, resized);
- get_mac(this, key, resized.ptr);
+ if (!set_key(this, resized) ||
+ !get_mac(this, key, resized.ptr))
+ {
+ return FALSE;
+ }
}
/*
@@ -256,17 +279,22 @@ METHOD(cmac_t, set_key, void,
memset(iv.ptr, 0, iv.len);
l = chunk_alloca(this->b);
memset(l.ptr, 0, l.len);
- this->k->set_key(this->k, resized);
- this->k->encrypt(this->k, l, iv, NULL);
+ if (!this->k->set_key(this->k, resized) ||
+ !this->k->encrypt(this->k, l, iv, NULL))
+ {
+ return FALSE;
+ }
derive_key(l);
memcpy(this->k1, l.ptr, l.len);
derive_key(l);
memcpy(this->k2, l.ptr, l.len);
memwipe(l.ptr, l.len);
+
+ return TRUE;
}
-METHOD(cmac_t, destroy, void,
- private_cmac_t *this)
+METHOD(mac_t, destroy, void,
+ private_mac_t *this)
{
this->k->destroy(this->k);
memwipe(this->k1, this->b);
@@ -281,9 +309,9 @@ METHOD(cmac_t, destroy, void,
/*
* Described in header
*/
-cmac_t *cmac_create(encryption_algorithm_t algo, size_t key_size)
+mac_t *cmac_create(encryption_algorithm_t algo, size_t key_size)
{
- private_cmac_t *this;
+ private_mac_t *this;
crypter_t *crypter;
u_int8_t b;
@@ -303,7 +331,7 @@ cmac_t *cmac_create(encryption_algorithm_t algo, size_t key_size)
INIT(this,
.public = {
.get_mac = _get_mac,
- .get_block_size = _get_block_size,
+ .get_mac_size = _get_mac_size,
.set_key = _set_key,
.destroy = _destroy,
},
@@ -319,3 +347,48 @@ cmac_t *cmac_create(encryption_algorithm_t algo, size_t key_size)
return &this->public;
}
+/*
+ * Described in header.
+ */
+prf_t *cmac_prf_create(pseudo_random_function_t algo)
+{
+ mac_t *cmac;
+
+ switch (algo)
+ {
+ case PRF_AES128_CMAC:
+ cmac = cmac_create(ENCR_AES_CBC, 16);
+ break;
+ default:
+ return NULL;
+ }
+ if (cmac)
+ {
+ return mac_prf_create(cmac);
+ }
+ return NULL;
+}
+
+/*
+ * Described in header
+ */
+signer_t *cmac_signer_create(integrity_algorithm_t algo)
+{
+ size_t truncation;
+ mac_t *cmac;
+
+ switch (algo)
+ {
+ case AUTH_AES_CMAC_96:
+ cmac = cmac_create(ENCR_AES_CBC, 16);
+ truncation = 12;
+ break;
+ default:
+ return NULL;
+ }
+ if (cmac)
+ {
+ return mac_signer_create(cmac, truncation);
+ }
+ return NULL;
+}
diff --git a/src/libstrongswan/plugins/cmac/cmac.h b/src/libstrongswan/plugins/cmac/cmac.h
index 061609127..dc85e3bc3 100644
--- a/src/libstrongswan/plugins/cmac/cmac.h
+++ b/src/libstrongswan/plugins/cmac/cmac.h
@@ -14,6 +14,11 @@
*/
/**
+ * Cipher-based Message Authentication Code (CMAC).
+ *
+ * This class implements the message authentication algorithm
+ * described in RFC 4493.
+ *
* @defgroup cmac cmac
* @{ @ingroup cmac_p
*/
@@ -21,58 +26,23 @@
#ifndef CMAC_H_
#define CMAC_H_
-#include <crypto/crypters/crypter.h>
-
-typedef struct cmac_t cmac_t;
+#include <crypto/prfs/prf.h>
+#include <crypto/signers/signer.h>
/**
- * Cipher-based Message Authentication Code (CMAC).
+ * Creates a new prf_t object based on a CMAC.
*
- * This class implements the message authentication algorithm
- * described in RFC 4493.
+ * @param algo algorithm to implement
+ * @return prf_t object, NULL if not supported
*/
-struct cmac_t {
-
- /**
- * Generate message authentication code.
- *
- * If buffer is NULL, no result is given back. A next call will
- * append the data to already supplied data. If buffer is not NULL,
- * the mac of all apended data is calculated, returned and the internal
- * state is reset.
- *
- * @param data chunk of data to authenticate
- * @param buffer pointer where the generated bytes will be written
- */
- void (*get_mac) (cmac_t *this, chunk_t data, u_int8_t *buffer);
-
- /**
- * Get the block size of this cmac_t object.
- *
- * @return block size in bytes
- */
- size_t (*get_block_size) (cmac_t *this);
-
- /**
- * Set the key for this cmac_t object.
- *
- * @param key key to set
- */
- void (*set_key) (cmac_t *this, chunk_t key);
-
- /**
- * Destroys a cmac_t object.
- */
- void (*destroy) (cmac_t *this);
-};
+prf_t *cmac_prf_create(pseudo_random_function_t algo);
/**
- * Creates a new cmac_t object.
+ * Creates a new signer_t object based on a CMAC.
*
- * @param algo underlying crypto algorithm
- * @param key_size key size to use, if required for algorithm
- * @return cmac_t object, NULL if not supported
+ * @param algo algorithm to implement
+ * @return signer_t, NULL if not supported
*/
-cmac_t *cmac_create(encryption_algorithm_t algo, size_t key_size);
+signer_t *cmac_signer_create(integrity_algorithm_t algo);
#endif /** CMAC_H_ @}*/
diff --git a/src/libstrongswan/plugins/cmac/cmac_plugin.c b/src/libstrongswan/plugins/cmac/cmac_plugin.c
index 5b42c5002..694e598a5 100644
--- a/src/libstrongswan/plugins/cmac/cmac_plugin.c
+++ b/src/libstrongswan/plugins/cmac/cmac_plugin.c
@@ -16,8 +16,7 @@
#include "cmac_plugin.h"
#include <library.h>
-#include "cmac_prf.h"
-#include "cmac_signer.h"
+#include "cmac.h"
typedef struct private_cmac_plugin_t private_cmac_plugin_t;
diff --git a/src/libstrongswan/plugins/cmac/cmac_prf.c b/src/libstrongswan/plugins/cmac/cmac_prf.c
deleted file mode 100644
index 17affe439..000000000
--- a/src/libstrongswan/plugins/cmac/cmac_prf.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (C) 2012 Tobias Brunner
- * Hochschule fuer Technik Rapperswil
- *
- * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program 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.
- */
-
-#include "cmac_prf.h"
-
-#include "cmac.h"
-
-typedef struct private_cmac_prf_t private_cmac_prf_t;
-
-/**
- * Private data of a cmac_prf_t object.
- */
-struct private_cmac_prf_t {
-
- /**
- * Public cmac_prf_t interface.
- */
- cmac_prf_t public;
-
- /**
- * cmac to use for generation.
- */
- cmac_t *cmac;
-};
-
-METHOD(prf_t, get_bytes, void,
- private_cmac_prf_t *this, chunk_t seed, u_int8_t *buffer)
-{
- this->cmac->get_mac(this->cmac, seed, buffer);
-}
-
-METHOD(prf_t, allocate_bytes, void,
- private_cmac_prf_t *this, chunk_t seed, chunk_t *chunk)
-{
- if (chunk)
- {
- *chunk = chunk_alloc(this->cmac->get_block_size(this->cmac));
- get_bytes(this, seed, chunk->ptr);
- }
- else
- {
- get_bytes(this, seed, NULL);
- }
-}
-
-METHOD(prf_t, get_block_size, size_t,
- private_cmac_prf_t *this)
-{
- return this->cmac->get_block_size(this->cmac);
-}
-
-METHOD(prf_t, get_key_size, size_t,
- private_cmac_prf_t *this)
-{
- /* in cmac, block and key size are always equal */
- return this->cmac->get_block_size(this->cmac);
-}
-
-METHOD(prf_t, set_key, void,
- private_cmac_prf_t *this, chunk_t key)
-{
- this->cmac->set_key(this->cmac, key);
-}
-
-METHOD(prf_t, destroy, void,
- private_cmac_prf_t *this)
-{
- this->cmac->destroy(this->cmac);
- free(this);
-}
-
-/*
- * Described in header.
- */
-cmac_prf_t *cmac_prf_create(pseudo_random_function_t algo)
-{
- private_cmac_prf_t *this;
- cmac_t *cmac;
-
- switch (algo)
- {
- case PRF_AES128_CMAC:
- cmac = cmac_create(ENCR_AES_CBC, 16);
- break;
- default:
- return NULL;
- }
- if (!cmac)
- {
- return NULL;
- }
-
- INIT(this,
- .public = {
- .prf = {
- .get_bytes = _get_bytes,
- .allocate_bytes = _allocate_bytes,
- .get_block_size = _get_block_size,
- .get_key_size = _get_key_size,
- .set_key = _set_key,
- .destroy = _destroy,
- },
- },
- .cmac = cmac,
- );
-
- return &this->public;
-}
-
diff --git a/src/libstrongswan/plugins/cmac/cmac_prf.h b/src/libstrongswan/plugins/cmac/cmac_prf.h
deleted file mode 100644
index a53cc5947..000000000
--- a/src/libstrongswan/plugins/cmac/cmac_prf.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright (C) 2012 Tobias Brunner
- * Hochschule fuer Technik Rapperswil
- *
- * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program 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.
- */
-
-/**
- * @defgroup cmac_prf cmac_prf
- * @{ @ingroup cmac_p
- */
-
-#ifndef PRF_CMAC_H_
-#define PRF_CMAC_H_
-
-typedef struct cmac_prf_t cmac_prf_t;
-
-#include <crypto/prfs/prf.h>
-
-/**
- * Implementation of prf_t on CBC block cipher using CMAC, RFC 4493 / RFC 4615.
- *
- * This simply wraps a cmac_t in a prf_t. More a question of
- * interface matching.
- */
-struct cmac_prf_t {
-
- /**
- * Implements prf_t interface.
- */
- prf_t prf;
-};
-
-/**
- * Creates a new cmac_prf_t object.
- *
- * @param algo algorithm to implement
- * @return cmac_prf_t object, NULL if hash not supported
- */
-cmac_prf_t *cmac_prf_create(pseudo_random_function_t algo);
-
-#endif /** PRF_CMAC_H_ @}*/
diff --git a/src/libstrongswan/plugins/cmac/cmac_signer.c b/src/libstrongswan/plugins/cmac/cmac_signer.c
deleted file mode 100644
index 82e8885d6..000000000
--- a/src/libstrongswan/plugins/cmac/cmac_signer.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * Copyright (C) 2012 Tobias Brunner
- * Hochschule fuer Technik Rapperswil
- *
- * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program 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.
- */
-
-#include <string.h>
-
-#include "cmac_signer.h"
-#include "cmac.h"
-
-typedef struct private_cmac_signer_t private_cmac_signer_t;
-
-/**
- * Private data structure with signing context.
- */
-struct private_cmac_signer_t {
-
- /**
- * Public interface.
- */
- cmac_signer_t public;
-
- /**
- * Assigned cmac function.
- */
- cmac_t *cmac;
-
- /**
- * Block size (truncation of CMAC MAC)
- */
- size_t block_size;
-};
-
-METHOD(signer_t, get_signature, void,
- private_cmac_signer_t *this, chunk_t data, u_int8_t *buffer)
-{
- if (buffer == NULL)
- { /* append mode */
- this->cmac->get_mac(this->cmac, data, NULL);
- }
- else
- {
- u_int8_t mac[this->cmac->get_block_size(this->cmac)];
-
- this->cmac->get_mac(this->cmac, data, mac);
- memcpy(buffer, mac, this->block_size);
- }
-}
-
-METHOD(signer_t, allocate_signature, void,
- private_cmac_signer_t *this, chunk_t data, chunk_t *chunk)
-{
- if (chunk == NULL)
- { /* append mode */
- this->cmac->get_mac(this->cmac, data, NULL);
- }
- else
- {
- u_int8_t mac[this->cmac->get_block_size(this->cmac)];
-
- this->cmac->get_mac(this->cmac, data, mac);
-
- chunk->ptr = malloc(this->block_size);
- chunk->len = this->block_size;
-
- memcpy(chunk->ptr, mac, this->block_size);
- }
-}
-
-METHOD(signer_t, verify_signature, bool,
- private_cmac_signer_t *this, chunk_t data, chunk_t signature)
-{
- u_int8_t mac[this->cmac->get_block_size(this->cmac)];
-
- if (signature.len != this->block_size)
- {
- return FALSE;
- }
-
- this->cmac->get_mac(this->cmac, data, mac);
- return memeq(signature.ptr, mac, this->block_size);
-}
-
-METHOD(signer_t, get_key_size, size_t,
- private_cmac_signer_t *this)
-{
- return this->cmac->get_block_size(this->cmac);
-}
-
-METHOD(signer_t, get_block_size, size_t,
- private_cmac_signer_t *this)
-{
- return this->block_size;
-}
-
-METHOD(signer_t, set_key, void,
- private_cmac_signer_t *this, chunk_t key)
-{
- this->cmac->set_key(this->cmac, key);
-}
-
-METHOD(signer_t, destroy, void,
- private_cmac_signer_t *this)
-{
- this->cmac->destroy(this->cmac);
- free(this);
-}
-
-/*
- * Described in header
- */
-cmac_signer_t *cmac_signer_create(integrity_algorithm_t algo)
-{
- private_cmac_signer_t *this;
- size_t truncation;
- cmac_t *cmac;
-
- switch (algo)
- {
- case AUTH_AES_CMAC_96:
- cmac = cmac_create(ENCR_AES_CBC, 16);
- truncation = 12;
- break;
- default:
- return NULL;
- }
- if (cmac == NULL)
- {
- return NULL;
- }
-
- INIT(this,
- .public = {
- .signer = {
- .get_signature = _get_signature,
- .allocate_signature = _allocate_signature,
- .verify_signature = _verify_signature,
- .get_key_size = _get_key_size,
- .get_block_size = _get_block_size,
- .set_key = _set_key,
- .destroy = _destroy,
- },
- },
- .cmac = cmac,
- .block_size = min(truncation, cmac->get_block_size(cmac)),
- );
-
- return &this->public;
-}
diff --git a/src/libstrongswan/plugins/cmac/cmac_signer.h b/src/libstrongswan/plugins/cmac/cmac_signer.h
deleted file mode 100644
index 2e3724471..000000000
--- a/src/libstrongswan/plugins/cmac/cmac_signer.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2012 Tobias Brunner
- * Hochschule fuer Technik Rapperswil
- *
- * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * This program 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.
- */
-
-/**
- * @defgroup cmac_signer cmac_signer
- * @{ @ingroup cmac_p
- */
-
-#ifndef CMAC_SIGNER_H_
-#define CMAC_SIGNER_H_
-
-typedef struct cmac_signer_t cmac_signer_t;
-
-#include <crypto/signers/signer.h>
-
-/**
- * Implementation of signer_t on CBC symmetric cipher using CMAC, RFC 4494.
- */
-struct cmac_signer_t {
-
- /**
- * Implements signer_t interface.
- */
- signer_t signer;
-};
-
-/**
- * Creates a new cmac_signer_t.
- *
- * @param algo algorithm to implement
- * @return cmac_signer_t, NULL if not supported
- */
-cmac_signer_t *cmac_signer_create(integrity_algorithm_t algo);
-
-#endif /** CMAC_SIGNER_H_ @}*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 12:36:35 +0000