1 files changed, 202 insertions, 0 deletions

diff --git a/src/lib/libcrypto/modes/cbc128.c b/src/lib/libcrypto/modes/cbc128.c
new file mode 100644
index 0000000000..3d3782cbe1
--- /dev/null
+++ b/src/lib/libcrypto/modes/cbc128.c
@@ -0,0 +1,202 @@
+/* ====================================================================
+ * Copyright (c) 2008 The OpenSSL Project.  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.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED 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 OpenSSL PROJECT OR
+ * ITS 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 <openssl/crypto.h>
+#include "modes_lcl.h"
+#include <string.h>
+
+#ifndef MODES_DEBUG
+# ifndef NDEBUG
+#  define NDEBUG
+# endif
+#endif
+#include <assert.h>
+
+#ifndef STRICT_ALIGNMENT
+#  define STRICT_ALIGNMENT 0
+#endif
+
+void CRYPTO_cbc128_encrypt(const unsigned char *in, unsigned char *out,
+                        size_t len, const void *key,
+                        unsigned char ivec[16], block128_f block)
+{
+        size_t n;
+        const unsigned char *iv = ivec;
+
+        assert(in && out && key && ivec);
+
+#if !defined(OPENSSL_SMALL_FOOTPRINT)
+        if (STRICT_ALIGNMENT &&
+            ((size_t)in|(size_t)out|(size_t)ivec)%sizeof(size_t) != 0) {
+                while (len>=16) {
+                        for(n=0; n<16; ++n)
+                                out[n] = in[n] ^ iv[n];
+                        (*block)(out, out, key);
+                        iv = out;
+                        len -= 16;
+                        in  += 16;
+                        out += 16;
+                }
+        } else {
+                while (len>=16) {
+                        for(n=0; n<16; n+=sizeof(size_t))
+                                *(size_t*)(out+n) =
+                                *(size_t*)(in+n) ^ *(size_t*)(iv+n);
+                        (*block)(out, out, key);
+                        iv = out;
+                        len -= 16;
+                        in  += 16;
+                        out += 16;
+                }
+        }
+#endif
+        while (len) {
+                for(n=0; n<16 && n<len; ++n)
+                        out[n] = in[n] ^ iv[n];
+                for(; n<16; ++n)
+                        out[n] = iv[n];
+                (*block)(out, out, key);
+                iv = out;
+                if (len<=16) break;
+                len -= 16;
+                in  += 16;
+                out += 16;
+        }
+        memcpy(ivec,iv,16);
+}
+
+void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out,
+                        size_t len, const void *key,
+                        unsigned char ivec[16], block128_f block)
+{
+        size_t n;
+        union { size_t align; unsigned char c[16]; } tmp;
+
+        assert(in && out && key && ivec);
+
+#if !defined(OPENSSL_SMALL_FOOTPRINT)
+        if (in != out) {
+                const unsigned char *iv = ivec;
+
+                if (STRICT_ALIGNMENT &&
+                    ((size_t)in|(size_t)out|(size_t)ivec)%sizeof(size_t) != 0) {
+                        while (len>=16) {
+                                (*block)(in, out, key);
+                                for(n=0; n<16; ++n)
+                                        out[n] ^= iv[n];
+                                iv = in;
+                                len -= 16;
+                                in  += 16;
+                                out += 16;
+                        }
+                }
+                else {
+                        while (len>=16) {
+                                (*block)(in, out, key);
+                                for(n=0; n<16; n+=sizeof(size_t))
+                                        *(size_t *)(out+n) ^= *(size_t *)(iv+n);
+                                iv = in;
+                                len -= 16;
+                                in  += 16;
+                                out += 16;
+                        }
+                }
+                memcpy(ivec,iv,16);
+        } else {
+                if (STRICT_ALIGNMENT &&
+                    ((size_t)in|(size_t)out|(size_t)ivec)%sizeof(size_t) != 0) {
+                        unsigned char c;
+                        while (len>=16) {
+                                (*block)(in, tmp.c, key);
+                                for(n=0; n<16; ++n) {
+                                        c = in[n];
+                                        out[n] = tmp.c[n] ^ ivec[n];
+                                        ivec[n] = c;
+                                }
+                                len -= 16;
+                                in  += 16;
+                                out += 16;
+                        }
+                }
+                else {
+                        size_t c;
+                        while (len>=16) {
+                                (*block)(in, tmp.c, key);
+                                for(n=0; n<16; n+=sizeof(size_t)) {
+                                        c = *(size_t *)(in+n);
+                                        *(size_t *)(out+n) =
+                                        *(size_t *)(tmp.c+n) ^ *(size_t *)(ivec+n);
+                                        *(size_t *)(ivec+n) = c;
+                                }
+                                len -= 16;
+                                in  += 16;
+                                out += 16;
+                        }
+                }
+        }
+#endif
+        while (len) {
+                unsigned char c;
+                (*block)(in, tmp.c, key);
+                for(n=0; n<16 && n<len; ++n) {
+                        c = in[n];
+                        out[n] = tmp.c[n] ^ ivec[n];
+                        ivec[n] = c;
+                }
+                if (len<=16) {
+                        for (; n<16; ++n)
+                                ivec[n] = in[n];
+                        break;
+                }
+                len -= 16;
+                in  += 16;
+                out += 16;
+        }
+}