1 files changed, 137 insertions, 0 deletions

diff --git a/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/blockmode.c b/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/blockmode.c
new file mode 100755
index 0000000000..cfccd43337
--- /dev/null
+++ b/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/blockmode.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2000, 2002 Virtual Unlimited B.V.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+/*!\file blockmode.c
+ * \brief Blockcipher operation modes.
+ * \author Bob Deblier <bob.deblier@pandora.be>
+ * \ingroup BC_m
+ */
+
+#define BEECRYPT_DLL_EXPORT
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "beecrypt/blockmode.h"
+
+int blockEncryptECB(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
+{
+        register const unsigned int blockwords = bc->blocksize >> 2;
+
+        while (nblocks > 0)
+        {
+                bc->raw.encrypt(bp, dst, src);
+
+                dst += blockwords;
+                src += blockwords;
+
+                nblocks--;
+        }
+
+        return 0;
+}
+
+int blockDecryptECB(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
+{
+        register const unsigned int blockwords = bc->blocksize >> 2;
+
+        while (nblocks > 0)
+        {
+                bc->raw.decrypt(bp, dst, src);
+
+                dst += blockwords;
+                src += blockwords;
+
+                nblocks--;
+        }
+
+        return 0;
+}
+
+int blockEncryptCBC(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
+{
+        register const unsigned int blockwords = bc->blocksize >> 2;
+        register uint32_t* fdback = bc->getfb(bp);
+
+        if (nblocks > 0)
+        {
+                register unsigned int i;
+
+                for (i = 0; i < blockwords; i++)
+                        dst[i] = src[i] ^ fdback[i];
+
+                bc->raw.encrypt(bp, dst, dst);
+
+                nblocks--;
+
+                while (nblocks > 0)
+                {
+                        for (i = 0; i < blockwords; i++)
+                                dst[i+blockwords] = src[i+blockwords] ^ dst[i];
+
+                        dst += blockwords;
+
+                        bc->raw.encrypt(bp, dst, dst);
+
+                        src += blockwords;
+
+                        nblocks--;
+                }
+
+                for (i = 0; i < blockwords; i++)
+                        fdback[i] = dst[i];
+        }
+
+        return 0;
+}
+
+int blockDecryptCBC(const blockCipher* bc, blockCipherParam* bp, uint32_t* dst, const uint32_t* src, unsigned int nblocks)
+{
+        register const unsigned int blockwords = bc->blocksize >> 2;
+        register uint32_t* fdback = bc->getfb(bp);
+        register uint32_t* buf = (uint32_t*) malloc(blockwords * sizeof(uint32_t));
+
+        if (buf)
+        {
+                while (nblocks > 0)
+                {
+                        register uint32_t tmp;
+                        register unsigned int i;
+
+                        bc->raw.decrypt(bp, buf, src);
+
+                        for (i = 0; i < blockwords; i++)
+                        {
+                                tmp = src[i];
+                                dst[i] = buf[i] ^ fdback[i];
+                                fdback[i] = tmp;
+                        }
+
+                        dst += blockwords;
+                        src += blockwords;
+
+                        nblocks--;
+                }
+                free(buf);
+                return 0;
+        }
+
+        return -1;
+}