initial commit, resurrect one of my realy old projects

1 files changed, 54 insertions, 0 deletions

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+/*
+ * rijndael-alg-fst.c
+ *
+ * @version 3.0 (December 2000)
+ *
+ * Optimised ANSI C code for the Rijndael cipher (now AES)
+ *
+ * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
+ * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
+ * @author Paulo Barreto <paulo.barreto@terra.com.br>
+ *
+ * This code is hereby placed in the public domain.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''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 AUTHORS 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.
+ */
+
+#ifndef _AES_
+#define _AES_
+
+/*
+ * FULL_UNROLL may be defined
+ */
+
+#include "uint.h"
+
+#define AES_BLOCK_SIZE 16
+
+#define MAXKC	(256/32)
+#define MAXKB	(256/8)
+#define MAXNR	14
+
+struct aes_ctx {
+	u32 ek[ 4*(MAXNR+1) ]; 
+	u32 dk[ 4*(MAXNR+1) ];
+	int rounds;
+};
+
+int aes_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags);
+
+void aes_encrypt(void *cx, u8 *dst, const u8 *src);
+
+void aes_decrypt(void *cx, u8 *dst, const u8 *src);
+
+#endif