Security-57336.1.9.tar.gz

[apple/security.git] / OSX / libsecurity_cryptkit / lib / ckDES.h

diff --git a/OSX/libsecurity_cryptkit/lib/ckDES.h b/OSX/libsecurity_cryptkit/lib/ckDES.h
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+/* Copyright (c) 1998,2011,2014 Apple Inc.  All Rights Reserved.
+ *
+ * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT
+ * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE
+ * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE, INC. AND THE
+ * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE,
+ * INC.  ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL
+ * EXPOSE YOU TO LIABILITY.
+ ***************************************************************************
+ *
+ * DES.h - raw DES encryption engine interface
+ *
+ * Revision History
+ * ----------------
+ * 31 Mar 97 at Apple
+ *     Put per-instance data in struct _desInst
+ * 21 Aug 96 at NeXT
+ *     Broke out from NSDESCryptor.m
+ * 22 Feb 96 at NeXT
+ *     Created.
+ */
+
+#ifndef        _CK_DES_H_
+#define _CK_DES_H_
+
+#include "ckconfig.h"
+
+#if CRYPTKIT_SYMMETRIC_ENABLE
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define DES_BLOCK_SIZE_BYTES           8       /* in bytes */
+#define DES_KEY_SIZE_BITS                      56      /* effective key size in bits */
+#define DES_KEY_SIZE_BITS_EXTERNAL     64      /* clients actually pass in this much */
+#define DES_KEY_SIZE_BYTES_EXTERNAL    (DES_KEY_SIZE_BITS_EXTERNAL / 8)
+
+#define DES_MODE_STD   0       /* standard Data Encryption Algorithm */
+#define DES_MODE_FAST  1       /* DEA without initial and final */
+                               /*    permutations for speed */
+#define DES_MODE_128   2       /* DEA without permutations and with */
+                               /*    128-byte key (completely independent */
+                               /*    subkeys for each round) */
+
+/*
+ * Per-instance data.
+ */
+struct _desInst {
+       /* 8 16-bit subkeys for each of 16 rounds, initialized by setkey()
+        */
+       unsigned char kn[16][8];
+       int desmode;
+};
+
+typedef struct _desInst *desInst;
+
+int desinit(desInst dinst, int mode);
+void dessetkey(desInst dinst, char *key);
+void endes(desInst dinst, char *block);
+void dedes(desInst dinst, char *block);
+void desdone(desInst dinst);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CRYPTKIT_SYMMETRIC_ENABLE */
+
+#endif /*_CK_DES_H_*/