1 files changed, 51 insertions, 0 deletions
diff --git a/lib/des.h b/lib/des.h
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--- /dev/null
+++ b/lib/des.h
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+/*
+ *  FIPS-46-3 compliant 3DES implementation
+ *
+ *  Copyright (C) 2001-2003  Christophe Devine
+ *
+ *  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 2 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, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _DES_H
+#define _DES_H
+
+#include <stdint.h>
+
+typedef struct
+{
+    uint32_t esk[32];     /* DES encryption subkeys */
+    uint32_t dsk[32];     /* DES decryption subkeys */
+}
+des_context;
+
+typedef struct
+{
+    uint32_t esk[96];     /* Triple-DES encryption subkeys */
+    uint32_t dsk[96];     /* Triple-DES decryption subkeys */
+}
+des3_context;
+
+int  des_set_key( des_context *ctx, uint8_t key[8] );
+void des_encrypt( des_context *ctx, uint8_t input[8], uint8_t output[8] );
+void des_decrypt( des_context *ctx, uint8_t input[8], uint8_t output[8] );
+
+int  des3_set_2keys( des3_context *ctx, const uint8_t key1[8], const uint8_t key2[8] );
+int  des3_set_3keys( des3_context *ctx, const uint8_t key1[8], const uint8_t key2[8],
+                                        const uint8_t key3[8] );
+
+void des3_encrypt( des3_context *ctx, uint8_t input[8], uint8_t output[8] );
+void des3_decrypt( des3_context *ctx, uint8_t input[8], uint8_t output[8] );
+
+#endif /* des.h */