--- /dev/null
+/* des.h */
+/*
+ This file is part of the ARM-Crypto-Lib.
+ Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * \file des.h
+ * \author Daniel Otte
+ * \date 2007-06-16
+ * \brief des and tdes declarations
+ * \license GPLv3 or later
+ *
+ */
+#ifndef DES_H_
+#define DES_H_
+
+/* the FIPS 46-3 (1999-10-25) name for triple DES is triple data encryption algorithm so TDEA.
+ * Also we only implement the three key mode */
+
+/** \def tdea_enc
+ * \brief defining an alias for void tdes_enc(void* out, const void* in, const void* key)
+ */
+
+/** \def tdea_dec
+ * \brief defining an alias for void tdes_dec(void* out, const void* in, const void* key)
+ */
+
+#define tdea_enc tdes_enc
+#define tdea_dec tdes_dec
+
+/** \fn void des_enc(void* out, const void* in, const void* key)
+ * \brief encrypt a block with DES
+ *
+ * This function encrypts a block of 64 bits (8 bytes) with the DES algorithm.
+ * Key expansion is done automatically. The key is 64 bits long, but note that
+ * only 56 bits are used (the LSB of each byte is dropped). The input and output
+ * blocks may overlap.
+ *
+ * \param out pointer to the block (64 bit = 8 byte) where the ciphertext is written to
+ * \param in pointer to the block (64 bit = 8 byte) where the plaintext is read from
+ * \param key pointer to the key (64 bit = 8 byte)
+ */
+void des_enc(void* out, const void* in, const void* key);
+
+/** \fn void des_dec(void* out, const void* in, const void* key)
+ * \brief decrypt a block with DES
+ *
+ * This function decrypts a block of 64 bits (8 bytes) with the DES algorithm.
+ * Key expansion is done automatically. The key is 64 bits long, but note that
+ * only 56 bits are used (the LSB of each byte is dropped). The input and output
+ * blocks may overlap.
+ *
+ * \param out pointer to the block (64 bit = 8 byte) where the plaintext is written to
+ * \param in pointer to the block (64 bit = 8 byte) where the ciphertext is read from
+ * \param key pointer to the key (64 bit = 8 byte)
+ */
+void des_dec(void* out, const void* in, const void* key);
+
+/** \fn void tdes_enc(void* out, const void* in, const void* key)
+ * \brief encrypt a block with Tripple-DES
+ *
+ * This function encrypts a block of 64 bits (8 bytes) with the Tripple-DES (EDE)
+ * algorithm. Key expansion is done automatically. The key is 192 bits long, but
+ * note that only 178 bits are used (the LSB of each byte is dropped). The input
+ * and output blocks may overlap.
+ *
+ * \param out pointer to the block (64 bit = 8 byte) where the ciphertext is written to
+ * \param in pointer to the block (64 bit = 8 byte) where the plaintext is read from
+ * \param key pointer to the key (192 bit = 24 byte)
+ */
+void tdes_enc(void* out, const void* in, const void* key);
+
+/** \fn void tdes_dec(void* out, const void* in, const void* key)
+ * \brief decrypt a block with Tripple-DES
+ *
+ * This function decrypts a block of 64 bits (8 bytes) with the Tripple-DES (EDE)
+ * algorithm. Key expansion is done automatically. The key is 192 bits long, but
+ * note that only 178 bits are used (the LSB of each byte is dropped). The input
+ * and output blocks may overlap.
+ *
+ * \param out pointer to the block (64 bit = 8 byte) where the plaintext is written to
+ * \param in pointer to the block (64 bit = 8 byte) where the ciphertext is read from
+ * \param key pointer to the key (192 bit = 24 byte)
+ */
+ void tdes_dec(void* out, const void* in, const void* key);
+
+#endif /*DES_H_*/
+
+// Copied from des.h in desfire imp.
+typedef unsigned long DES_KS[16][2]; /* Single-key DES key schedule */
+typedef unsigned long DES3_KS[48][2]; /* Triple-DES key schedule */
+
+
+extern int Asmversion; /* 1 if we're linked with an asm version, 0 if C */