diff options
author | Yves-Alexis Perez <corsac@debian.org> | 2013-01-02 14:18:20 +0100 |
---|---|---|
committer | Yves-Alexis Perez <corsac@debian.org> | 2013-01-02 14:18:20 +0100 |
commit | 2ea5b8ab2fa64487af984af2162039596a06015a (patch) | |
tree | 58f9a4372d6007b33b1fca63ab18b53aa34b090d /src/libstrongswan/plugins/xcbc | |
parent | 4e331141b8693e5214b82fdd6c3c6f4fa65eafca (diff) | |
parent | c1343b3278cdf99533b7902744d15969f9d6fdc1 (diff) | |
download | vyos-strongswan-2ea5b8ab2fa64487af984af2162039596a06015a.tar.gz vyos-strongswan-2ea5b8ab2fa64487af984af2162039596a06015a.zip |
Merge tag 'upstream/5.0.1'
Upstream version 5.0.1
Diffstat (limited to 'src/libstrongswan/plugins/xcbc')
-rw-r--r-- | src/libstrongswan/plugins/xcbc/Makefile.am | 3 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/Makefile.in | 22 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc.c | 148 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc.h | 60 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc_plugin.c | 3 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc_prf.c | 124 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc_prf.h | 50 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc_signer.c | 164 | ||||
-rw-r--r-- | src/libstrongswan/plugins/xcbc/xcbc_signer.h | 47 |
9 files changed, 144 insertions, 477 deletions
diff --git a/src/libstrongswan/plugins/xcbc/Makefile.am b/src/libstrongswan/plugins/xcbc/Makefile.am index 7de306832..28e99f650 100644 --- a/src/libstrongswan/plugins/xcbc/Makefile.am +++ b/src/libstrongswan/plugins/xcbc/Makefile.am @@ -10,7 +10,6 @@ plugin_LTLIBRARIES = libstrongswan-xcbc.la endif libstrongswan_xcbc_la_SOURCES = \ - xcbc_plugin.h xcbc_plugin.c xcbc.h xcbc.c \ - xcbc_prf.h xcbc_prf.c xcbc_signer.h xcbc_signer.c + xcbc_plugin.h xcbc_plugin.c xcbc.h xcbc.c libstrongswan_xcbc_la_LDFLAGS = -module -avoid-version diff --git a/src/libstrongswan/plugins/xcbc/Makefile.in b/src/libstrongswan/plugins/xcbc/Makefile.in index ae23ce730..b4d0a2160 100644 --- a/src/libstrongswan/plugins/xcbc/Makefile.in +++ b/src/libstrongswan/plugins/xcbc/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_xcbc_la_LIBADD = -am_libstrongswan_xcbc_la_OBJECTS = xcbc_plugin.lo xcbc.lo xcbc_prf.lo \ - xcbc_signer.lo +am_libstrongswan_xcbc_la_OBJECTS = xcbc_plugin.lo xcbc.lo libstrongswan_xcbc_la_OBJECTS = $(am_libstrongswan_xcbc_la_OBJECTS) libstrongswan_xcbc_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \ $(libstrongswan_xcbc_la_LDFLAGS) $(LDFLAGS) -o $@ @MONOLITHIC_FALSE@am_libstrongswan_xcbc_la_rpath = -rpath $(plugindir) @MONOLITHIC_TRUE@am_libstrongswan_xcbc_la_rpath = -DEFAULT_INCLUDES = -I.@am__isrc@ +DEFAULT_INCLUDES = -I.@am__isrc@ -I$(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-xcbc.la @MONOLITHIC_FALSE@plugin_LTLIBRARIES = libstrongswan-xcbc.la libstrongswan_xcbc_la_SOURCES = \ - xcbc_plugin.h xcbc_plugin.c xcbc.h xcbc.c \ - xcbc_prf.h xcbc_prf.c xcbc_signer.h xcbc_signer.c + xcbc_plugin.h xcbc_plugin.c xcbc.h xcbc.c libstrongswan_xcbc_la_LDFLAGS = -module -avoid-version all: all-am @@ -375,8 +379,6 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xcbc.Plo@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xcbc_plugin.Plo@am__quote@ -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xcbc_prf.Plo@am__quote@ -@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/xcbc_signer.Plo@am__quote@ .c.o: @am__fastdepCC_TRUE@ $(COMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $< diff --git a/src/libstrongswan/plugins/xcbc/xcbc.c b/src/libstrongswan/plugins/xcbc/xcbc.c index 53629abe5..1bb7e640a 100644 --- a/src/libstrongswan/plugins/xcbc/xcbc.c +++ b/src/libstrongswan/plugins/xcbc/xcbc.c @@ -1,4 +1,5 @@ /* + * Copyright (C) 2012 Tobias Brunner * Copyright (C) 2008 Martin Willi * Hochschule fuer Technik Rapperswil * @@ -18,20 +19,23 @@ #include "xcbc.h" #include <debug.h> +#include <crypto/mac.h> +#include <crypto/prfs/mac_prf.h> +#include <crypto/signers/mac_signer.h> -typedef struct private_xcbc_t private_xcbc_t; +typedef struct private_mac_t private_mac_t; /** - * Private data of a xcbc_t object. + * Private data of a mac_t object. * * The variable names are the same as in the RFC. */ -struct private_xcbc_t { +struct private_mac_t { /** - * Public xcbc_t interface. + * Public mac_t interface. */ - xcbc_t public; + mac_t public; /** * Block size, in bytes @@ -77,7 +81,7 @@ struct private_xcbc_t { /** * xcbc supplied data, but do not run final operation */ -static void update(private_xcbc_t *this, chunk_t data) +static bool update(private_mac_t *this, chunk_t data) { chunk_t iv; @@ -90,7 +94,7 @@ static void update(private_xcbc_t *this, chunk_t data) { /* no complete 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); @@ -106,7 +110,10 @@ static void update(private_xcbc_t *this, chunk_t data) this->b - this->remaining_bytes); data = chunk_skip(data, this->b - this->remaining_bytes); memxor(this->e, this->remaining, this->b); - this->k1->encrypt(this->k1, chunk_create(this->e, this->b), iv, NULL); + if (!this->k1->encrypt(this->k1, chunk_create(this->e, this->b), iv, NULL)) + { + return FALSE; + } /* process blocks M[2] ... M[n-1] */ while (data.len > this->b) @@ -114,18 +121,24 @@ static void update(private_xcbc_t *this, chunk_t data) memcpy(this->remaining, data.ptr, this->b); data = chunk_skip(data, this->b); memxor(this->e, this->remaining, this->b); - this->k1->encrypt(this->k1, chunk_create(this->e, this->b), iv, NULL); + if (!this->k1->encrypt(this->k1, chunk_create(this->e, 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; } /** * run last round, data is in this->e */ -static void final(private_xcbc_t *this, u_int8_t *out) +static bool final(private_mac_t *this, u_int8_t *out) { chunk_t iv; @@ -141,7 +154,6 @@ static void final(private_xcbc_t *this, u_int8_t *out) */ memxor(this->e, this->remaining, this->b); memxor(this->e, this->k2, this->b); - this->k1->encrypt(this->k1, chunk_create(this->e, this->b), iv, NULL); } else { @@ -164,7 +176,10 @@ static void final(private_xcbc_t *this, u_int8_t *out) */ memxor(this->e, this->remaining, this->b); memxor(this->e, this->k3, this->b); - this->k1->encrypt(this->k1, chunk_create(this->e, this->b), iv, NULL); + } + if (!this->k1->encrypt(this->k1, chunk_create(this->e, this->b), iv, NULL)) + { + return FALSE; } memcpy(out, this->e, this->b); @@ -173,28 +188,34 @@ static void final(private_xcbc_t *this, u_int8_t *out) memset(this->e, 0, this->b); this->remaining_bytes = 0; this->zero = TRUE; + + return TRUE; } -METHOD(xcbc_t, get_mac, void, - private_xcbc_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 E, 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(xcbc_t, get_block_size, size_t, - private_xcbc_t *this) +METHOD(mac_t, get_mac_size, size_t, + private_mac_t *this) { return this->b; } -METHOD(xcbc_t, set_key, void, - private_xcbc_t *this, chunk_t key) +METHOD(mac_t, set_key, bool, + private_mac_t *this, chunk_t key) { chunk_t iv, k1, lengthened; @@ -213,8 +234,11 @@ METHOD(xcbc_t, set_key, void, { /* shorten key using xcbc */ lengthened = chunk_alloca(this->b); memset(lengthened.ptr, 0, lengthened.len); - set_key(this, lengthened); - get_mac(this, key, lengthened.ptr); + if (!set_key(this, lengthened) || + !get_mac(this, key, lengthened.ptr)) + { + return FALSE; + } } k1 = chunk_alloca(this->b); @@ -228,20 +252,26 @@ METHOD(xcbc_t, set_key, void, * K2 = 0x02020202020202020202020202020202 encrypted with Key K * K3 = 0x03030303030303030303030303030303 encrypted with Key K */ - this->k1->set_key(this->k1, lengthened); + + memset(k1.ptr, 0x01, this->b); memset(this->k2, 0x02, this->b); - this->k1->encrypt(this->k1, chunk_create(this->k2, this->b), iv, NULL); memset(this->k3, 0x03, this->b); - this->k1->encrypt(this->k1, chunk_create(this->k3, this->b), iv, NULL); - memset(k1.ptr, 0x01, this->b); - this->k1->encrypt(this->k1, k1, iv, NULL); - this->k1->set_key(this->k1, k1); + if (!this->k1->set_key(this->k1, lengthened) || + !this->k1->encrypt(this->k1, chunk_create(this->k2, this->b), iv, NULL) || + !this->k1->encrypt(this->k1, chunk_create(this->k3, this->b), iv, NULL) || + !this->k1->encrypt(this->k1, k1, iv, NULL) || + !this->k1->set_key(this->k1, k1)) + { + memwipe(k1.ptr, k1.len); + return FALSE; + } memwipe(k1.ptr, k1.len); + return TRUE; } -METHOD(xcbc_t, destroy, void, - private_xcbc_t *this) +METHOD(mac_t, destroy, void, + private_mac_t *this) { this->k1->destroy(this->k1); memwipe(this->k2, this->b); @@ -256,9 +286,9 @@ METHOD(xcbc_t, destroy, void, /* * Described in header */ -xcbc_t *xcbc_create(encryption_algorithm_t algo, size_t key_size) +static mac_t *xcbc_create(encryption_algorithm_t algo, size_t key_size) { - private_xcbc_t *this; + private_mac_t *this; crypter_t *crypter; u_int8_t b; @@ -278,7 +308,7 @@ xcbc_t *xcbc_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, }, @@ -295,3 +325,55 @@ xcbc_t *xcbc_create(encryption_algorithm_t algo, size_t key_size) return &this->public; } +/* + * Described in header. + */ +prf_t *xcbc_prf_create(pseudo_random_function_t algo) +{ + mac_t *xcbc; + + switch (algo) + { + case PRF_AES128_XCBC: + xcbc = xcbc_create(ENCR_AES_CBC, 16); + break; + case PRF_CAMELLIA128_XCBC: + xcbc = xcbc_create(ENCR_CAMELLIA_CBC, 16); + break; + default: + return NULL; + } + if (xcbc) + { + return mac_prf_create(xcbc); + } + return NULL; +} + +/* + * Described in header + */ +signer_t *xcbc_signer_create(integrity_algorithm_t algo) +{ + size_t trunc; + mac_t *xcbc; + + switch (algo) + { + case AUTH_AES_XCBC_96: + xcbc = xcbc_create(ENCR_AES_CBC, 16); + trunc = 12; + break; + case AUTH_CAMELLIA_XCBC_96: + xcbc = xcbc_create(ENCR_CAMELLIA_CBC, 16); + trunc = 12; + break; + default: + return NULL; + } + if (xcbc) + { + return mac_signer_create(xcbc, trunc); + } + return NULL; +} diff --git a/src/libstrongswan/plugins/xcbc/xcbc.h b/src/libstrongswan/plugins/xcbc/xcbc.h index 5d5eb04fb..a36069a17 100644 --- a/src/libstrongswan/plugins/xcbc/xcbc.h +++ b/src/libstrongswan/plugins/xcbc/xcbc.h @@ -14,6 +14,11 @@ */ /** + * Message authentication using CBC crypter. + * + * This class implements the message authentication algorithm + * described in RFC3566. + * * @defgroup xcbc xcbc * @{ @ingroup xcbc_p */ @@ -21,58 +26,23 @@ #ifndef XCBC_H_ #define XCBC_H_ -typedef struct xcbc_t xcbc_t; - -#include <crypto/hashers/hasher.h> +#include <crypto/prfs/prf.h> +#include <crypto/signers/signer.h> /** - * Message authentication using CBC crypter. + * Creates a new prf_t object based on a XCBC MAC. * - * This class implements the message authentication algorithm - * described in RFC3566. + * @param algo algorithm to implement + * @return prf_t object, NULL if not supported */ -struct xcbc_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 - * state of the xcbc_t is reseted. - * - * @param data chunk of data to authenticate - * @param buffer pointer where the generated bytes will be written - */ - void (*get_mac) (xcbc_t *this, chunk_t data, u_int8_t *buffer); - - /** - * Get the block size of this xcbc_t object. - * - * @return block size in bytes - */ - size_t (*get_block_size) (xcbc_t *this); - - /** - * Set the key for this xcbc_t object. - * - * @param key key to set - */ - void (*set_key) (xcbc_t *this, chunk_t key); - - /** - * Destroys a xcbc_t object. - */ - void (*destroy) (xcbc_t *this); -}; +prf_t *xcbc_prf_create(pseudo_random_function_t algo); /** - * Creates a new xcbc_t object. + * Creates a new signer_t object based on a XCBC MAC. * - * @param algo underlying crypto algorithm - * @param key_size key size to use, if required for algorithm - * @return xcbc_t object, NULL if not supported + * @param algo algorithm to implement + * @return signer_t, NULL if not supported */ -xcbc_t *xcbc_create(encryption_algorithm_t algo, size_t key_size); +signer_t *xcbc_signer_create(integrity_algorithm_t algo); #endif /** XCBC_H_ @}*/ diff --git a/src/libstrongswan/plugins/xcbc/xcbc_plugin.c b/src/libstrongswan/plugins/xcbc/xcbc_plugin.c index 3c3b9d12a..4706a9574 100644 --- a/src/libstrongswan/plugins/xcbc/xcbc_plugin.c +++ b/src/libstrongswan/plugins/xcbc/xcbc_plugin.c @@ -16,8 +16,7 @@ #include "xcbc_plugin.h" #include <library.h> -#include "xcbc_signer.h" -#include "xcbc_prf.h" +#include "xcbc.h" typedef struct private_xcbc_plugin_t private_xcbc_plugin_t; diff --git a/src/libstrongswan/plugins/xcbc/xcbc_prf.c b/src/libstrongswan/plugins/xcbc/xcbc_prf.c deleted file mode 100644 index ac9e1fda0..000000000 --- a/src/libstrongswan/plugins/xcbc/xcbc_prf.c +++ /dev/null @@ -1,124 +0,0 @@ -/* - * Copyright (C) 2008 Martin Willi - * 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 "xcbc_prf.h" - -#include "xcbc.h" - -typedef struct private_xcbc_prf_t private_xcbc_prf_t; - -/** - * Private data of a xcbc_prf_t object. - */ -struct private_xcbc_prf_t { - - /** - * Public xcbc_prf_t interface. - */ - xcbc_prf_t public; - - /** - * xcbc to use for generation. - */ - xcbc_t *xcbc; -}; - -METHOD(prf_t, get_bytes, void, - private_xcbc_prf_t *this, chunk_t seed, u_int8_t *buffer) -{ - this->xcbc->get_mac(this->xcbc, seed, buffer); -} - -METHOD(prf_t, allocate_bytes, void, - private_xcbc_prf_t *this, chunk_t seed, chunk_t *chunk) -{ - if (chunk) - { - *chunk = chunk_alloc(this->xcbc->get_block_size(this->xcbc)); - get_bytes(this, seed, chunk->ptr); - } - else - { - get_bytes(this, seed, NULL); - } -} - -METHOD(prf_t, get_block_size, size_t, - private_xcbc_prf_t *this) -{ - return this->xcbc->get_block_size(this->xcbc); -} - -METHOD(prf_t, get_key_size, size_t, - private_xcbc_prf_t *this) -{ - /* in xcbc, block and key size are always equal */ - return this->xcbc->get_block_size(this->xcbc); -} - -METHOD(prf_t, set_key, void, - private_xcbc_prf_t *this, chunk_t key) -{ - this->xcbc->set_key(this->xcbc, key); -} - -METHOD(prf_t, destroy, void, - private_xcbc_prf_t *this) -{ - this->xcbc->destroy(this->xcbc); - free(this); -} - -/* - * Described in header. - */ -xcbc_prf_t *xcbc_prf_create(pseudo_random_function_t algo) -{ - private_xcbc_prf_t *this; - xcbc_t *xcbc; - - switch (algo) - { - case PRF_AES128_XCBC: - xcbc = xcbc_create(ENCR_AES_CBC, 16); - break; - case PRF_CAMELLIA128_XCBC: - xcbc = xcbc_create(ENCR_CAMELLIA_CBC, 16); - break; - default: - return NULL; - } - if (!xcbc) - { - 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, - }, - }, - .xcbc = xcbc, - ); - - return &this->public; -} - diff --git a/src/libstrongswan/plugins/xcbc/xcbc_prf.h b/src/libstrongswan/plugins/xcbc/xcbc_prf.h deleted file mode 100644 index 294a853b4..000000000 --- a/src/libstrongswan/plugins/xcbc/xcbc_prf.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Copyright (C) 2008 Martin Willi - * 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 xcbc_prf xcbc_prf - * @{ @ingroup xcbc_p - */ - -#ifndef PRF_XCBC_H_ -#define PRF_XCBC_H_ - -typedef struct xcbc_prf_t xcbc_prf_t; - -#include <crypto/prfs/prf.h> - -/** - * Implementation of prf_t on CBC block cipher using XCBC, RFC3664/RFC4434. - * - * This simply wraps a xcbc_t in a prf_t. More a question of - * interface matching. - */ -struct xcbc_prf_t { - - /** - * Implements prf_t interface. - */ - prf_t prf; -}; - -/** - * Creates a new xcbc_prf_t object. - * - * @param algo algorithm to implement - * @return xcbc_prf_t object, NULL if hash not supported - */ -xcbc_prf_t *xcbc_prf_create(pseudo_random_function_t algo); - -#endif /** PRF_XCBC_SHA1_H_ @}*/ diff --git a/src/libstrongswan/plugins/xcbc/xcbc_signer.c b/src/libstrongswan/plugins/xcbc/xcbc_signer.c deleted file mode 100644 index ece592323..000000000 --- a/src/libstrongswan/plugins/xcbc/xcbc_signer.c +++ /dev/null @@ -1,164 +0,0 @@ -/* - * Copyright (C) 2008 Martin Willi - * 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 "xcbc_signer.h" -#include "xcbc.h" - -typedef struct private_xcbc_signer_t private_xcbc_signer_t; - -/** - * Private data structure with signing context. - */ -struct private_xcbc_signer_t { - - /** - * Public interface of xcbc_signer_t. - */ - xcbc_signer_t public; - - /** - * Assigned xcbc function. - */ - xcbc_t *xcbc; - - /** - * Block size (truncation of XCBC MAC) - */ - size_t block_size; -}; - -METHOD(signer_t, get_signature, void, - private_xcbc_signer_t *this, chunk_t data, u_int8_t *buffer) -{ - if (buffer == NULL) - { /* append mode */ - this->xcbc->get_mac(this->xcbc, data, NULL); - } - else - { - u_int8_t mac[this->xcbc->get_block_size(this->xcbc)]; - - this->xcbc->get_mac(this->xcbc, data, mac); - memcpy(buffer, mac, this->block_size); - } -} - -METHOD(signer_t, allocate_signature, void, - private_xcbc_signer_t *this, chunk_t data, chunk_t *chunk) -{ - if (chunk == NULL) - { /* append mode */ - this->xcbc->get_mac(this->xcbc, data, NULL); - } - else - { - u_int8_t mac[this->xcbc->get_block_size(this->xcbc)]; - - this->xcbc->get_mac(this->xcbc, 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_xcbc_signer_t *this, chunk_t data, chunk_t signature) -{ - u_int8_t mac[this->xcbc->get_block_size(this->xcbc)]; - - if (signature.len != this->block_size) - { - return FALSE; - } - - this->xcbc->get_mac(this->xcbc, data, mac); - return memeq(signature.ptr, mac, this->block_size); -} - -METHOD(signer_t, get_key_size, size_t, - private_xcbc_signer_t *this) -{ - return this->xcbc->get_block_size(this->xcbc); -} - -METHOD(signer_t, get_block_size, size_t, - private_xcbc_signer_t *this) -{ - return this->block_size; -} - -METHOD(signer_t, set_key, void, - private_xcbc_signer_t *this, chunk_t key) -{ - this->xcbc->set_key(this->xcbc, key); -} - -METHOD(signer_t, destroy, void, - private_xcbc_signer_t *this) -{ - this->xcbc->destroy(this->xcbc); - free(this); -} - -/* - * Described in header - */ -xcbc_signer_t *xcbc_signer_create(integrity_algorithm_t algo) -{ - private_xcbc_signer_t *this; - size_t trunc; - xcbc_t *xcbc; - - switch (algo) - { - case AUTH_AES_XCBC_96: - xcbc = xcbc_create(ENCR_AES_CBC, 16); - trunc = 12; - break; - case AUTH_CAMELLIA_XCBC_96: - xcbc = xcbc_create(ENCR_CAMELLIA_CBC, 16); - trunc = 12; - break; - default: - return NULL; - } - if (xcbc == 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, - }, - }, - .xcbc = xcbc, - .block_size = min(trunc, xcbc->get_block_size(xcbc)), - ); - - return &this->public; -} - diff --git a/src/libstrongswan/plugins/xcbc/xcbc_signer.h b/src/libstrongswan/plugins/xcbc/xcbc_signer.h deleted file mode 100644 index 56b55f223..000000000 --- a/src/libstrongswan/plugins/xcbc/xcbc_signer.h +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (C) 2008 Martin Willi - * 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 xcbc_signer xcbc_signer - * @{ @ingroup xcbc_p - */ - -#ifndef XCBC_SIGNER_H_ -#define XCBC_SIGNER_H_ - -typedef struct xcbc_signer_t xcbc_signer_t; - -#include <crypto/signers/signer.h> - -/** - * Implementation of signer_t based on CBC symmetric cypher. XCBC, RFC3566. - */ -struct xcbc_signer_t { - - /** - * Implements signer_t interface. - */ - signer_t signer; -}; - -/** - * Creates a new xcbc_signer_t. - * - * @param algo algorithm to implement - * @return xcbc_signer_t, NULL if not supported - */ -xcbc_signer_t *xcbc_signer_create(integrity_algorithm_t algo); - -#endif /** XCBC_SIGNER_H_ @}*/ |