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Diffstat (limited to 'openssl/crypto/camellia/cmll_cbc.c')
-rw-r--r--openssl/crypto/camellia/cmll_cbc.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/openssl/crypto/camellia/cmll_cbc.c b/openssl/crypto/camellia/cmll_cbc.c
new file mode 100644
index 000000000..4141a7b59
--- /dev/null
+++ b/openssl/crypto/camellia/cmll_cbc.c
@@ -0,0 +1,273 @@
+/* crypto/camellia/camellia_cbc.c -*- mode:C; c-file-style: "eay" -*- */
+/* ====================================================================
+ * Copyright (c) 2006 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.
+ * ====================================================================
+ *
+ */
+
+#ifndef CAMELLIA_DEBUG
+# ifndef NDEBUG
+# define NDEBUG
+# endif
+#endif
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/camellia.h>
+#include "cmll_locl.h"
+
+void Camellia_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ const unsigned long length, const CAMELLIA_KEY *key,
+ unsigned char *ivec, const int enc) {
+
+ unsigned long n;
+ unsigned long len = length;
+ const unsigned char *iv = ivec;
+ union { u32 t32[CAMELLIA_BLOCK_SIZE/sizeof(u32)];
+ u8 t8 [CAMELLIA_BLOCK_SIZE]; } tmp;
+ const union { long one; char little; } camellia_endian = {1};
+
+
+ assert(in && out && key && ivec);
+ assert((CAMELLIA_ENCRYPT == enc)||(CAMELLIA_DECRYPT == enc));
+
+ if(((size_t)in|(size_t)out|(size_t)ivec) % sizeof(u32) == 0)
+ {
+ if (CAMELLIA_ENCRYPT == enc)
+ {
+ while (len >= CAMELLIA_BLOCK_SIZE)
+ {
+ XOR4WORD2((u32 *)out,
+ (u32 *)in, (u32 *)iv);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ key->enc(key->rd_key, (u32 *)out);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ iv = out;
+ len -= CAMELLIA_BLOCK_SIZE;
+ in += CAMELLIA_BLOCK_SIZE;
+ out += CAMELLIA_BLOCK_SIZE;
+ }
+ if (len)
+ {
+ for(n=0; n < len; ++n)
+ out[n] = in[n] ^ iv[n];
+ for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
+ out[n] = iv[n];
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ key->enc(key->rd_key, (u32 *)out);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ iv = out;
+ }
+ memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
+ }
+ else if (in != out)
+ {
+ while (len >= CAMELLIA_BLOCK_SIZE)
+ {
+ memcpy(out,in,CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ key->dec(key->rd_key,(u32 *)out);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ XOR4WORD((u32 *)out, (u32 *)iv);
+ iv = in;
+ len -= CAMELLIA_BLOCK_SIZE;
+ in += CAMELLIA_BLOCK_SIZE;
+ out += CAMELLIA_BLOCK_SIZE;
+ }
+ if (len)
+ {
+ memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->dec(key->rd_key, tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ for(n=0; n < len; ++n)
+ out[n] = tmp.t8[n] ^ iv[n];
+ iv = in;
+ }
+ memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
+ }
+ else /* in == out */
+ {
+ while (len >= CAMELLIA_BLOCK_SIZE)
+ {
+ memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ key->dec(key->rd_key, (u32 *)out);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ XOR4WORD((u32 *)out, (u32 *)ivec);
+ memcpy(ivec, tmp.t8, CAMELLIA_BLOCK_SIZE);
+ len -= CAMELLIA_BLOCK_SIZE;
+ in += CAMELLIA_BLOCK_SIZE;
+ out += CAMELLIA_BLOCK_SIZE;
+ }
+ if (len)
+ {
+ memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ key->dec(key->rd_key,(u32 *)out);
+ if (camellia_endian.little)
+ SWAP4WORD((u32 *)out);
+ for(n=0; n < len; ++n)
+ out[n] ^= ivec[n];
+ for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
+ out[n] = tmp.t8[n];
+ memcpy(ivec, tmp.t8, CAMELLIA_BLOCK_SIZE);
+ }
+ }
+ }
+ else /* no aligned */
+ {
+ if (CAMELLIA_ENCRYPT == enc)
+ {
+ while (len >= CAMELLIA_BLOCK_SIZE)
+ {
+ for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
+ tmp.t8[n] = in[n] ^ iv[n];
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->enc(key->rd_key, tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ memcpy(out, tmp.t8, CAMELLIA_BLOCK_SIZE);
+ iv = out;
+ len -= CAMELLIA_BLOCK_SIZE;
+ in += CAMELLIA_BLOCK_SIZE;
+ out += CAMELLIA_BLOCK_SIZE;
+ }
+ if (len)
+ {
+ for(n=0; n < len; ++n)
+ tmp.t8[n] = in[n] ^ iv[n];
+ for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
+ tmp.t8[n] = iv[n];
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->enc(key->rd_key, tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ memcpy(out, tmp.t8, CAMELLIA_BLOCK_SIZE);
+ iv = out;
+ }
+ memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
+ }
+ else if (in != out)
+ {
+ while (len >= CAMELLIA_BLOCK_SIZE)
+ {
+ memcpy(tmp.t8,in,CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->dec(key->rd_key,tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
+ out[n] = tmp.t8[n] ^ iv[n];
+ iv = in;
+ len -= CAMELLIA_BLOCK_SIZE;
+ in += CAMELLIA_BLOCK_SIZE;
+ out += CAMELLIA_BLOCK_SIZE;
+ }
+ if (len)
+ {
+ memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->dec(key->rd_key, tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ for(n=0; n < len; ++n)
+ out[n] = tmp.t8[n] ^ iv[n];
+ iv = in;
+ }
+ memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
+ }
+ else
+ {
+ while (len >= CAMELLIA_BLOCK_SIZE)
+ {
+ memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->dec(key->rd_key, tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
+ tmp.t8[n] ^= ivec[n];
+ memcpy(ivec, in, CAMELLIA_BLOCK_SIZE);
+ memcpy(out, tmp.t8, CAMELLIA_BLOCK_SIZE);
+ len -= CAMELLIA_BLOCK_SIZE;
+ in += CAMELLIA_BLOCK_SIZE;
+ out += CAMELLIA_BLOCK_SIZE;
+ }
+ if (len)
+ {
+ memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ key->dec(key->rd_key,tmp.t32);
+ if (camellia_endian.little)
+ SWAP4WORD(tmp.t32);
+ for(n=0; n < len; ++n)
+ tmp.t8[n] ^= ivec[n];
+ memcpy(ivec, in, CAMELLIA_BLOCK_SIZE);
+ memcpy(out,tmp.t8,len);
+ }
+ }
+ }
+}
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