initial commit, resurrect one of my realy old projects

1 files changed, 52 insertions, 0 deletions

diff --git a/blowfish.h b/blowfish.h
new file mode 100644
index 0000000..d0f2bce
--- /dev/null
+++ b/blowfish.h
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+/* 
+ * Cryptographic API.
+ *
+ * Blowfish Cipher Algorithm, by Bruce Schneier.
+ * http://www.counterpane.com/blowfish.html
+ * 
+ * Adapated from Kerneli implementation.
+ * 
+ * Copyright (c) Herbert Valerio Riedel <hvr@hvrlab.org>
+ * Copyright (c) Kyle McMartin <kyle@debian.org>
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ *
+ * 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.
+ *
+ */
+
+#ifndef _BLOWFISH_
+#define _BLOWFISH_
+
+#include "uint.h"
+
+#define BF_BLOCK_SIZE 8
+
+/* key length from 32 to 448 bits, but no checks are made */
+#define BF_MIN_KEY_SIZE 4
+#define BF_MAX_KEY_SIZE 56
+
+struct blowfish_ctx {
+	u32 p[18];
+	u32 s[1024];
+};
+
+/* 
+ * Calculates the blowfish S and P boxes for encryption and decryption.
+ */
+int blowfish_setkey(void *ctx, const u8 *key, unsigned int keylen, u32 *flags);
+
+void blowfish_encrypt(void *cx, u8 *dst, const u8 *src);
+
+void blowfish_decrypt(void *cx, u8 *dst, const u8 *src);
+
+
+/* memcpy */
+/*
+void blowfish_encrypt_fake(void *cx, u8 *dst, const u8 *src);
+void blowfish_decrypt_fake(void *cx, u8 *dst, const u8 *src);
+*/
+
+#endif