Initial import.

crypto/c_skein.h

@@ -0,0 +1,47 @@
+#ifndef _SKEIN_H_
+#define _SKEIN_H_     1
+/**************************************************************************
+**
+** Interface declarations and internal definitions for Skein hashing.
+**
+** Source code author: Doug Whiting, 2008.
+**
+** This algorithm and source code is released to the public domain.
+**
+***************************************************************************
+** 
+** The following compile-time switches may be defined to control some
+** tradeoffs between speed, code size, error checking, and security.
+**
+** The "default" note explains what happens when the switch is not defined.
+**
+**  SKEIN_DEBUG            -- make callouts from inside Skein code
+**                            to examine/display intermediate values.
+**                            [default: no callouts (no overhead)]
+**
+**  SKEIN_ERR_CHECK        -- how error checking is handled inside Skein
+**                            code. If not defined, most error checking 
+**                            is disabled (for performance). Otherwise, 
+**                            the switch value is interpreted as:
+**                                0: use assert()      to flag errors
+**                                1: return SKEIN_FAIL to flag errors
+**
+***************************************************************************/
+#include "skein_port.h"                      /* get platform-specific definitions */
+
+typedef enum
+{
+  SKEIN_SUCCESS         =      0,          /* return codes from Skein calls */
+  SKEIN_FAIL            =      1,
+  SKEIN_BAD_HASHLEN     =      2
+}
+SkeinHashReturn;
+
+typedef size_t   SkeinDataLength;                /* bit count  type */
+typedef u08b_t   SkeinBitSequence;               /* bit stream type */
+
+/* "all-in-one" call */
+SkeinHashReturn skein_hash(int hashbitlen,   const SkeinBitSequence *data,
+        SkeinDataLength databitlen, SkeinBitSequence *hashval);
+
+#endif  /* ifndef _SKEIN_H_ */