- (djm) OpenBSD CVS Sync
- hshoexer@cvs.openbsd.org 2004/01/23 17:06:03
[cipher.c]
enable acss for ssh
ok deraadt@ markus@
- (djm) [acss.c acss.h cipher-acss.c] Portable support for ACSS
if libcrypto lacks it
diff --git a/acss.h b/acss.h
new file mode 100644
index 0000000..fc6344d
--- /dev/null
+++ b/acss.h
@@ -0,0 +1,47 @@
+/* $Id: */
+/*
+ * Copyright (c) 2004 The OpenBSD project
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _ACSS_H_
+#define _ACSS_H_
+
+/* 40bit key */
+#define ACSS_KEYSIZE 5
+
+/* modes of acss */
+#define ACSS_AUTHENTICATE 0
+#define ACSS_SESSIONKEY 1
+#define ACSS_TITLEKEY 2
+#define ACSS_DATA 3
+
+typedef struct acss_key_st {
+ unsigned int lfsr17; /* current state of lfsrs */
+ unsigned int lfsr25;
+ unsigned int lfsrsum;
+ unsigned char seed[ACSS_KEYSIZE];
+ unsigned char data[ACSS_KEYSIZE];
+ unsigned char subkey[ACSS_KEYSIZE];
+ int encrypt; /* XXX make these bit flags? */
+ int mode;
+ int seeded;
+ int subkey_avilable;
+} ACSS_KEY;
+
+void acss_setkey(ACSS_KEY *, const unsigned char *, int, int);
+void acss_setsubkey(ACSS_KEY *, const unsigned char *);
+int acss(ACSS_KEY *, unsigned long, const unsigned char *, unsigned char *);
+
+#endif /* ifndef _ACSS_H_ */