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authorMatthias Schiffer <mschiffer@universe-factory.net>2013-11-15 21:52:45 +0100
committerMatthias Schiffer <mschiffer@universe-factory.net>2013-11-15 21:52:45 +0100
commit3d00ddf2968711d071b537b27c3ec208b584cbdc (patch)
tree4f62485d3d51764694b802864e695434b73c62c2 /src
parentefdd366144118b5f1a7bcef983a1888975aeefa0 (diff)
downloadfastd-3d00ddf2968711d071b537b27c3ec208b584cbdc.tar
fastd-3d00ddf2968711d071b537b27c3ec208b584cbdc.zip
Allow using blowfish from OpenSSL on systems where it's available anyways
Diffstat (limited to 'src')
-rw-r--r--src/CMakeLists.txt6
-rw-r--r--src/crypto/cipher/blowfish_ctr/CMakeLists.txt1
-rw-r--r--src/crypto/cipher/blowfish_ctr/openssl/CMakeLists.txt7
-rw-r--r--src/crypto/cipher/blowfish_ctr/openssl/blowfish_ctr.c113
4 files changed, 124 insertions, 3 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a8ac194..da20721 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,8 +1,8 @@
set_directory_properties(PROPERTIES COMPILE_DEFINITIONS _GNU_SOURCE)
-set(FASTD_CFLAGS "-Wall -pthread ${UECC_CFLAGS_OTHER} ${NACL_CFLAGS_OTHER}")
+set(FASTD_CFLAGS "-Wall -pthread ${UECC_CFLAGS_OTHER} ${NACL_CFLAGS_OTHER} ${OPENSSL_CRYPTO_CFLAGS_OTHER}")
include_directories(${FASTD_SOURCE_DIR} ${FASTD_BINARY_DIR}/src)
-link_directories(${UECC_LIBRARY_DIRS} ${NACL_LIBRARY_DIRS})
+link_directories(${UECC_LIBRARY_DIRS} ${NACL_LIBRARY_DIRS} ${OPENSSL_CRYPTO_LIBRARY_DIRS})
include(generate_version)
@@ -38,7 +38,7 @@ add_executable(fastd
${BISON_fastd_config_parse_OUTPUTS}
)
set_property(TARGET fastd PROPERTY COMPILE_FLAGS "${FASTD_CFLAGS}")
-set_property(TARGET fastd PROPERTY LINK_FLAGS "-pthread ${UECC_LDFLAGS_OTHER} ${NACL_LDFLAGS_OTHER}")
+set_property(TARGET fastd PROPERTY LINK_FLAGS "-pthread ${UECC_LDFLAGS_OTHER} ${NACL_LDFLAGS_OTHER} ${OPENSSL_CRYPTO_LDFLAGS_OTHER}")
set_property(TARGET fastd APPEND PROPERTY INCLUDE_DIRECTORIES ${CAP_INCLUDE_DIR} ${NACL_INCLUDE_DIRS})
target_link_libraries(fastd protocols methods ciphers macs ${RT_LIBRARY} ${CAP_LIBRARY} ${UECC_LIBRARIES} ${NACL_LIBRARIES})
diff --git a/src/crypto/cipher/blowfish_ctr/CMakeLists.txt b/src/crypto/cipher/blowfish_ctr/CMakeLists.txt
index 56d283f..39a8d28 100644
--- a/src/crypto/cipher/blowfish_ctr/CMakeLists.txt
+++ b/src/crypto/cipher/blowfish_ctr/CMakeLists.txt
@@ -1,2 +1,3 @@
fastd_cipher(blowfish-ctr)
+add_subdirectory(openssl)
add_subdirectory(builtin)
diff --git a/src/crypto/cipher/blowfish_ctr/openssl/CMakeLists.txt b/src/crypto/cipher/blowfish_ctr/openssl/CMakeLists.txt
new file mode 100644
index 0000000..76bce41
--- /dev/null
+++ b/src/crypto/cipher/blowfish_ctr/openssl/CMakeLists.txt
@@ -0,0 +1,7 @@
+if(USE_OPENSSL)
+ fastd_cipher_impl(blowfish-ctr openssl
+ blowfish_ctr.c
+ )
+ fastd_cipher_impl_include_directories(blowfish-ctr openssl ${OPENSSL_INCLUDE_DIRS})
+ fastd_cipher_impl_link_libraries(blowfish-ctr openssl ${OPENSSL_CRYPTO_LIBRARIES})
+endif(USE_OPENSSL)
diff --git a/src/crypto/cipher/blowfish_ctr/openssl/blowfish_ctr.c b/src/crypto/cipher/blowfish_ctr/openssl/blowfish_ctr.c
new file mode 100644
index 0000000..1eafb97
--- /dev/null
+++ b/src/crypto/cipher/blowfish_ctr/openssl/blowfish_ctr.c
@@ -0,0 +1,113 @@
+/*
+ Copyright (c) 2012-2013, Matthias Schiffer <mschiffer@universe-factory.net>
+ 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 COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT HOLDER OR CONTRIBUTORS 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.
+*/
+
+
+#include "../../../../fastd.h"
+
+#include <openssl/blowfish.h>
+
+
+struct fastd_cipher_state {
+ BF_KEY key;
+};
+
+
+static fastd_cipher_context_t* blowfish_ctr_initialize(fastd_context_t *ctx UNUSED) {
+ return NULL;
+}
+
+static size_t blowfish_ctr_key_length(fastd_context_t *ctx UNUSED, const fastd_cipher_context_t *cctx UNUSED) {
+ return 56;
+}
+
+static inline void bf_ntohl(uint32_t *v, size_t len) {
+ size_t i;
+ for (i = 0; i < len; i++)
+ v[i] = ntohl(v[i]);
+}
+
+static inline void bf_htonl(uint32_t *v, size_t len) {
+ size_t i;
+ for (i = 0; i < len; i++)
+ v[i] = htonl(v[i]);
+}
+static fastd_cipher_state_t* blowfish_ctr_init_state(fastd_context_t *ctx UNUSED, const fastd_cipher_context_t *cctx UNUSED, const uint8_t *key) {
+ fastd_cipher_state_t *state = malloc(sizeof(fastd_cipher_state_t));
+ BF_set_key(&state->key, 56, (const unsigned char*)key);
+
+ return state;
+}
+
+static size_t blowfish_ctr_iv_length(fastd_context_t *ctx UNUSED, const fastd_cipher_state_t *state UNUSED) {
+ return 8;
+}
+
+static bool blowfish_ctr_crypt(fastd_context_t *ctx UNUSED, const fastd_cipher_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t len, const uint8_t *iv) {
+ uint32_t ctr[2];
+
+ fastd_block128_t block;
+ uint32_t* block4 = (uint32_t*)&block;
+
+ memcpy(ctr, iv, sizeof(ctr));
+ bf_ntohl(ctr, 2);
+
+ size_t i;
+ for(i = 0; i < len; i += 16) {
+ memcpy(block4, ctr, sizeof(ctr));
+ BF_encrypt((BF_LONG*)block4, &state->key);
+ ctr[1]++;
+
+ memcpy(block4+2, ctr, sizeof(ctr));
+ BF_encrypt((BF_LONG*)block4+2, &state->key);
+ ctr[1]++;
+
+ bf_htonl(block4, 4);
+ xor(out++, in++, &block);
+ }
+
+ return true;
+}
+
+static void blowfish_ctr_free_state(fastd_context_t *ctx UNUSED, fastd_cipher_state_t *state) {
+ free(state);
+}
+
+static void blowfish_ctr_free(fastd_context_t *ctx UNUSED, fastd_cipher_context_t *cctx UNUSED) {
+}
+
+const fastd_cipher_t fastd_cipher_blowfish_ctr_openssl = {
+ .name = "openssl",
+
+ .initialize = blowfish_ctr_initialize,
+
+ .key_length = blowfish_ctr_key_length,
+ .init_state = blowfish_ctr_init_state,
+
+ .iv_length = blowfish_ctr_iv_length,
+ .crypt = blowfish_ctr_crypt,
+
+ .free_state = blowfish_ctr_free_state,
+ .free = blowfish_ctr_free,
+};