- (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

1 files changed, 47 insertions, 0 deletions

diff --git a/acss.h b/acss.h
new file mode 100644
index 000000000..fc6344dc8
--- /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_ */