add missing camellia files

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@21695 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/hcrypto/camellia.c

@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 2007 Kungliga Tekniska H<>gskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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 INSTITUTE 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+
+RCSID("$Id: aes.c 20466 2007-04-20 08:29:05Z lha $");
+#endif
+
+#ifdef KRB5
+#include <krb5-types.h>
+#endif
+
+#include <string.h>
+
+#include "camellia-ntt.h"
+#include "camellia.h"
+
+int
+CAMELLIA_set_key(const unsigned char *userkey, 
+		 const int bits, CAMELLIA_KEY *key)
+{
+    key->bits = bits;
+    Camellia_Ekeygen(bits, userkey, key->key);
+    return 1;
+}
+
+void
+CAMELLIA_encrypt(const unsigned char *in, unsigned char *out, 
+		 const CAMELLIA_KEY *key)
+{
+    Camellia_EncryptBlock(key->bits, in, key->key, out);
+
+}
+
+void
+CAMELLIA_decrypt(const unsigned char *in, unsigned char *out, 
+		 const CAMELLIA_KEY *key)
+{
+    Camellia_DecryptBlock(key->bits, in, key->key, out);
+}
+
+void
+CAMELLIA_cbc_encrypt(const unsigned char *in, unsigned char *out,
+		     unsigned long size, const CAMELLIA_KEY *key,
+		     unsigned char *iv, int mode_encrypt)
+{
+    unsigned char tmp[CAMELLIA_BLOCK_SIZE];
+    int i;
+
+    if (mode_encrypt) {
+	while (size >= CAMELLIA_BLOCK_SIZE) {
+	    for (i = 0; i < CAMELLIA_BLOCK_SIZE; i++)
+		tmp[i] = in[i] ^ iv[i];
+	    CAMELLIA_encrypt(tmp, out, key);
+	    memcpy(iv, out, CAMELLIA_BLOCK_SIZE);
+	    size -= CAMELLIA_BLOCK_SIZE;
+	    in += CAMELLIA_BLOCK_SIZE;
+	    out += CAMELLIA_BLOCK_SIZE;
+	}
+	if (size) {
+	    for (i = 0; i < size; i++)
+		tmp[i] = in[i] ^ iv[i];
+	    for (i = size; i < CAMELLIA_BLOCK_SIZE; i++)
+		tmp[i] = iv[i];
+	    CAMELLIA_encrypt(tmp, out, key);
+	    memcpy(iv, out, CAMELLIA_BLOCK_SIZE);
+	}
+    } else {
+	while (size >= CAMELLIA_BLOCK_SIZE) {
+	    memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
+	    CAMELLIA_decrypt(tmp, out, key);
+	    for (i = 0; i < CAMELLIA_BLOCK_SIZE; i++)
+		out[i] ^= iv[i];
+	    memcpy(iv, tmp, CAMELLIA_BLOCK_SIZE);
+	    size -= CAMELLIA_BLOCK_SIZE;
+	    in += CAMELLIA_BLOCK_SIZE;
+	    out += CAMELLIA_BLOCK_SIZE;
+	}
+	if (size) {
+	    memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
+	    CAMELLIA_decrypt(tmp, out, key);
+	    for (i = 0; i < size; i++)
+		out[i] ^= iv[i];
+	    memcpy(iv, tmp, CAMELLIA_BLOCK_SIZE);
+	}
+    }
+}