diff options
Diffstat (limited to 'src/libstrongswan/plugins/sha1')
| -rw-r--r-- | src/libstrongswan/plugins/sha1/Makefile.am | 10 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/sha1/Makefile.in | 494 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/sha1/sha1_hasher.c | 366 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/sha1/sha1_hasher.h | 69 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/sha1/sha1_plugin.c | 64 | ||||
| -rw-r--r-- | src/libstrongswan/plugins/sha1/sha1_plugin.h | 47 |
6 files changed, 1050 insertions, 0 deletions
diff --git a/src/libstrongswan/plugins/sha1/Makefile.am b/src/libstrongswan/plugins/sha1/Makefile.am new file mode 100644 index 000000000..299e85083 --- /dev/null +++ b/src/libstrongswan/plugins/sha1/Makefile.am @@ -0,0 +1,10 @@ + +INCLUDES = -I$(top_srcdir)/src/libstrongswan + +AM_CFLAGS = -rdynamic + +plugin_LTLIBRARIES = libstrongswan-sha1.la + +libstrongswan_sha1_la_SOURCES = sha1_plugin.h sha1_plugin.c sha1_hasher.c sha1_hasher.h +libstrongswan_sha1_la_LDFLAGS = -module + diff --git a/src/libstrongswan/plugins/sha1/Makefile.in b/src/libstrongswan/plugins/sha1/Makefile.in new file mode 100644 index 000000000..b57c46aee --- /dev/null +++ b/src/libstrongswan/plugins/sha1/Makefile.in @@ -0,0 +1,494 @@ +# Makefile.in generated by automake 1.10.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = src/libstrongswan/plugins/sha1 +DIST_COMMON = 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clean-generic \ + clean-libtool clean-pluginLTLIBRARIES ctags distclean \ + distclean-compile distclean-generic distclean-libtool \ + distclean-tags distdir dvi dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am install-man \ + install-pdf install-pdf-am install-pluginLTLIBRARIES \ + install-ps install-ps-am install-strip installcheck \ + installcheck-am installdirs maintainer-clean \ + maintainer-clean-generic mostlyclean mostlyclean-compile \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags uninstall uninstall-am uninstall-pluginLTLIBRARIES + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/libstrongswan/plugins/sha1/sha1_hasher.c b/src/libstrongswan/plugins/sha1/sha1_hasher.c new file mode 100644 index 000000000..c496be8f4 --- /dev/null +++ b/src/libstrongswan/plugins/sha1/sha1_hasher.c @@ -0,0 +1,366 @@ +/* + * Copyright (C) 2005-2006 Martin Willi + * Copyright (C) 2005 Jan Hutter + * Hochschule fuer Technik Rapperswil + * + * Ported from Steve Reid's <steve@edmweb.com> implementation + * "SHA1 in C" found in strongSwan. + * + * 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. + * + * $Id: sha1_hasher.c 3619 2008-03-19 14:02:52Z martin $ + */ + +#include <string.h> +#include <arpa/inet.h> + +#include "sha1_hasher.h" + +/* + * ugly macro stuff + */ +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) + +#if BYTE_ORDER == LITTLE_ENDIAN + #define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) |(rol(block->l[i],8)&0x00FF00FF)) +#elif BYTE_ORDER == BIG_ENDIAN + #define blk0(i) block->l[i] +#else + #error "Endianness not defined!" +#endif +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] ^block->l[(i+2)&15]^block->l[i&15],1)) + +/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */ +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); + + +typedef struct private_sha1_hasher_t private_sha1_hasher_t; +typedef struct private_sha1_keyed_prf_t private_sha1_keyed_prf_t; + +/** + * Private data structure with hasing context. + */ +struct private_sha1_hasher_t { + /** + * Public interface for this hasher. + */ + sha1_hasher_t public; + + /* + * State of the hasher. + */ + u_int32_t state[5]; + u_int32_t count[2]; + u_int8_t buffer[64]; +}; + +/** + * Private data structure with keyed prf context. + */ +struct private_sha1_keyed_prf_t { + /** + * public prf interface + */ + sha1_keyed_prf_t public; + + /** + * internal used hasher + */ + private_sha1_hasher_t *hasher; +}; + +/* + * Hash a single 512-bit block. This is the core of the algorithm. * + */ +static void SHA1Transform(u_int32_t state[5], const unsigned char buffer[64]) +{ + u_int32_t a, b, c, d, e; + typedef union { + u_int8_t c[64]; + u_int32_t l[16]; + } CHAR64LONG16; + CHAR64LONG16 block[1]; /* use array to appear as a pointer */ + memcpy(block, buffer, 64); + + /* Copy context->state[] to working vars */ + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + /* 4 rounds of 20 operations each. Loop unrolled. */ + R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); + R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); + R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); + R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); + R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); + R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); + R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); + R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); + R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); + R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); + R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); + R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); + R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); + R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); + R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); + R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); + R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); + R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); + R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); + R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); + /* Add the working vars back into context.state[] */ + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + state[4] += e; + /* Wipe variables */ + a = b = c = d = e = 0; + memset(block, '\0', sizeof(block)); +} + +/* + * Run your data through this. + */ +static void SHA1Update(private_sha1_hasher_t* this, u_int8_t *data, u_int32_t len) +{ + u_int32_t i; + u_int32_t j; + + j = this->count[0]; + if ((this->count[0] += len << 3) < j) + { + this->count[1]++; + } + this->count[1] += (len>>29); + j = (j >> 3) & 63; + if ((j + len) > 63) + { + memcpy(&this->buffer[j], data, (i = 64-j)); + SHA1Transform(this->state, this->buffer); + for ( ; i + 63 < len; i += 64) + { + SHA1Transform(this->state, &data[i]); + } + j = 0; + } + else + { + i = 0; + } + memcpy(&this->buffer[j], &data[i], len - i); +} + + +/* + * Add padding and return the message digest. + */ +static void SHA1Final(private_sha1_hasher_t *this, u_int8_t *digest) +{ + u_int32_t i; + u_int8_t finalcount[8]; + u_int8_t c; + + for (i = 0; i < 8; i++) + { + finalcount[i] = (u_int8_t)((this->count[(i >= 4 ? 0 : 1)] + >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ + } + c = 0200; + SHA1Update(this, &c, 1); + while ((this->count[0] & 504) != 448) + { + c = 0000; + SHA1Update(this, &c, 1); + } + SHA1Update(this, finalcount, 8); /* Should cause a SHA1Transform() */ + for (i = 0; i < 20; i++) + { + digest[i] = (u_int8_t)((this->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); + } +} + +/** + * Implementation of hasher_t.reset. + */ +static void reset(private_sha1_hasher_t *this) +{ + this->state[0] = 0x67452301; + this->state[1] = 0xEFCDAB89; + this->state[2] = 0x98BADCFE; + this->state[3] = 0x10325476; + this->state[4] = 0xC3D2E1F0; + this->count[0] = 0; + this->count[1] = 0; +} + +/** + * Implementation of hasher_t.get_hash. + */ +static void get_hash(private_sha1_hasher_t *this, chunk_t chunk, u_int8_t *buffer) +{ + SHA1Update(this, chunk.ptr, chunk.len); + if (buffer != NULL) + { + SHA1Final(this, buffer); + reset(this); + } +} + +/** + * Implementation of hasher_t.allocate_hash. + */ +static void allocate_hash(private_sha1_hasher_t *this, chunk_t chunk, chunk_t *hash) +{ + SHA1Update(this, chunk.ptr, chunk.len); + if (hash != NULL) + { + hash->ptr = malloc(HASH_SIZE_SHA1); + hash->len = HASH_SIZE_SHA1; + + SHA1Final(this, hash->ptr); + reset(this); + } +} + +/** + * Implementation of hasher_t.get_hash_size. + */ +static size_t get_hash_size(private_sha1_hasher_t *this) +{ + return HASH_SIZE_SHA1; +} + +/** + * Implementation of hasher_t.destroy. + */ +static void destroy(private_sha1_hasher_t *this) +{ + free(this); +} + +/* + * Described in header. + */ +sha1_hasher_t *sha1_hasher_create(hash_algorithm_t algo) +{ + private_sha1_hasher_t *this; + if (algo != HASH_SHA1) + { + return NULL; + } + this = malloc_thing(private_sha1_hasher_t); + this->public.hasher_interface.get_hash = (void (*) (hasher_t*, chunk_t, u_int8_t*))get_hash; + this->public.hasher_interface.allocate_hash = (void (*) (hasher_t*, chunk_t, chunk_t*))allocate_hash; + this->public.hasher_interface.get_hash_size = (size_t (*) (hasher_t*))get_hash_size; + this->public.hasher_interface.reset = (void (*) (hasher_t*))reset; + this->public.hasher_interface.destroy = (void (*) (hasher_t*))destroy; + + /* initialize */ + reset(this); + + return &(this->public); +} + +/** + * Implementation of prf_t.get_bytes. + */ +static void get_bytes(private_sha1_keyed_prf_t *this, chunk_t seed, u_int8_t *bytes) +{ + u_int32_t *hash = (u_int32_t*)bytes; + + SHA1Update(this->hasher, seed.ptr, seed.len); + + hash[0] = htonl(this->hasher->state[0]); + hash[1] = htonl(this->hasher->state[1]); + hash[2] = htonl(this->hasher->state[2]); + hash[3] = htonl(this->hasher->state[3]); + hash[4] = htonl(this->hasher->state[4]); +} + +/** + * Implementation of prf_t.get_block_size. + */ +static size_t get_block_size(private_sha1_keyed_prf_t *this) +{ + return HASH_SIZE_SHA1; +} + +/** + * Implementation of prf_t.allocate_bytes. + */ +static void allocate_bytes(private_sha1_keyed_prf_t *this, chunk_t seed, chunk_t *chunk) +{ + *chunk = chunk_alloc(HASH_SIZE_SHA1); + get_bytes(this, seed, chunk->ptr); +} + +/** + * Implementation of prf_t.get_key_size. + */ +static size_t get_key_size(private_sha1_keyed_prf_t *this) +{ + return sizeof(this->hasher->state); +} + +/** + * Implementation of prf_t.set_key. + */ +static void set_key(private_sha1_keyed_prf_t *this, chunk_t key) +{ + int i, rounds; + u_int32_t *iv = (u_int32_t*)key.ptr; + + reset(this->hasher); + rounds = min(key.len/sizeof(u_int32_t), sizeof(this->hasher->state)); + for (i = 0; i < rounds; i++) + { + this->hasher->state[i] ^= htonl(iv[i]); + } +} + +/** + * Implementation of prf_t.destroy. + */ +static void destroy_p(private_sha1_keyed_prf_t *this) +{ + destroy(this->hasher); + free(this); +} + +/** + * see header + */ +sha1_keyed_prf_t *sha1_keyed_prf_create(pseudo_random_function_t algo) +{ + private_sha1_keyed_prf_t *this; + if (algo != PRF_KEYED_SHA1) + { + return NULL; + } + this = malloc_thing(private_sha1_keyed_prf_t); + this->public.prf_interface.get_bytes = (void (*) (prf_t *,chunk_t,u_int8_t*))get_bytes; + this->public.prf_interface.allocate_bytes = (void (*) (prf_t*,chunk_t,chunk_t*))allocate_bytes; + this->public.prf_interface.get_block_size = (size_t (*) (prf_t*))get_block_size; + this->public.prf_interface.get_key_size = (size_t (*) (prf_t*))get_key_size; + this->public.prf_interface.set_key = (void (*) (prf_t *,chunk_t))set_key; + this->public.prf_interface.destroy = (void (*) (prf_t *))destroy_p; + + this->hasher = (private_sha1_hasher_t*)sha1_hasher_create(HASH_SHA1); + + return &(this->public); +} + diff --git a/src/libstrongswan/plugins/sha1/sha1_hasher.h b/src/libstrongswan/plugins/sha1/sha1_hasher.h new file mode 100644 index 000000000..2e44797d8 --- /dev/null +++ b/src/libstrongswan/plugins/sha1/sha1_hasher.h @@ -0,0 +1,69 @@ +/* + * Copyright (C) 2005-2008 Martin Willi + * Copyright (C) 2005 Jan Hutter + * 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 sha1_hasher sha1_hasher + * @{ @ingroup sha1_p + */ + +#ifndef SHA1_HASHER_H_ +#define SHA1_HASHER_H_ + +typedef struct sha1_hasher_t sha1_hasher_t; +typedef struct sha1_keyed_prf_t sha1_keyed_prf_t; + +#include <crypto/hashers/hasher.h> +#include <crypto/prfs/prf.h> + +/** + * Implementation of hasher_t interface using the SHA1 algorithm. + */ +struct sha1_hasher_t { + + /** + * Implements hasher_t interface. + */ + hasher_t hasher_interface; +}; + +/** + * Implementation of prf_t interface using keyed SHA1 algorithm (used for EAP-AKA). + */ +struct sha1_keyed_prf_t { + + /** + * Implements prf_t interface. + */ + prf_t prf_interface; +}; + +/** + * Creates a new sha1_hasher_t. + * + * @param algo algorithm, must be HASH_SHA1 + * @return sha1_hasher_t object + */ +sha1_hasher_t *sha1_hasher_create(hash_algorithm_t algo); + +/** + * Creates a new sha1_keyed_prf_t. + * + * @param algo algorithm, must be PRF_KEYED_SHA1 + * @return sha1_keyed_prf_tobject + */ +sha1_keyed_prf_t *sha1_keyed_prf_create(pseudo_random_function_t algo); + +#endif /*SHA1_HASHER_H_ @}*/ diff --git a/src/libstrongswan/plugins/sha1/sha1_plugin.c b/src/libstrongswan/plugins/sha1/sha1_plugin.c new file mode 100644 index 000000000..e8da99e6c --- /dev/null +++ b/src/libstrongswan/plugins/sha1/sha1_plugin.c @@ -0,0 +1,64 @@ +/* + * 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. + * + * $Id: sha1_plugin.c 3619 2008-03-19 14:02:52Z martin $ + */ + +#include "sha1_plugin.h" + +#include <library.h> +#include "sha1_hasher.h" + +typedef struct private_sha1_plugin_t private_sha1_plugin_t; + +/** + * private data of sha1_plugin + */ +struct private_sha1_plugin_t { + + /** + * public functions + */ + sha1_plugin_t public; +}; + +/** + * Implementation of sha1_plugin_t.destroy + */ +static void destroy(private_sha1_plugin_t *this) +{ + lib->crypto->remove_hasher(lib->crypto, + (hasher_constructor_t)sha1_hasher_create); + lib->crypto->remove_prf(lib->crypto, + (prf_constructor_t)sha1_keyed_prf_create); + free(this); +} + +/* + * see header file + */ +plugin_t *plugin_create() +{ + private_sha1_plugin_t *this = malloc_thing(private_sha1_plugin_t); + + this->public.plugin.destroy = (void(*)(plugin_t*))destroy; + + lib->crypto->add_hasher(lib->crypto, HASH_SHA1, + (hasher_constructor_t)sha1_hasher_create); + lib->crypto->add_prf(lib->crypto, PRF_KEYED_SHA1, + (prf_constructor_t)sha1_keyed_prf_create); + + return &this->public.plugin; +} + diff --git a/src/libstrongswan/plugins/sha1/sha1_plugin.h b/src/libstrongswan/plugins/sha1/sha1_plugin.h new file mode 100644 index 000000000..82ab04c86 --- /dev/null +++ b/src/libstrongswan/plugins/sha1/sha1_plugin.h @@ -0,0 +1,47 @@ +/* + * 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 sha1_p sha1 + * @ingroup plugins + * + * @defgroup sha1_plugin sha1_plugin + * @{ @ingroup sha1_p + */ + +#ifndef SHA1_PLUGIN_H_ +#define SHA1_PLUGIN_H_ + +#include <plugins/plugin.h> + +typedef struct sha1_plugin_t sha1_plugin_t; + +/** + * Plugin implementing the SHA1 algorithm in software. + */ +struct sha1_plugin_t { + + /** + * implements plugin interface + */ + plugin_t plugin; +}; + +/** + * Create a sha1_plugin instance. + */ +plugin_t *plugin_create(); + +#endif /* SHA1_PLUGIN_H_ @}*/ |