Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cryptkit / lib / byteRep.h

diff --git a/Security/libsecurity_cryptkit/lib/byteRep.h b/Security/libsecurity_cryptkit/lib/byteRep.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.
+ ***************************************************************************
+ *
+ * byteRep.h - FEE portable byte representation support
+ *
+ * Revision History
+ * ----------------
+ * 17 Jul 97 at Apple
+ *     Added signature routines.
+ *  9 Jan 97 at NeXT
+ *     Split off from ckutilities.h
+ */
+
+#ifndef        _CK_BYTEREP_H_
+#define _CK_BYTEREP_H_
+
+#include "feeTypes.h"
+#include "giantIntegers.h"
+#include "elliptic.h"
+#include "curveParams.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Support for bytestream key and signature representation.
+ */
+int intToByteRep(int i, unsigned char *buf);
+int shortToByteRep(short s, unsigned char *buf);
+int giantToByteRep(giant g, unsigned char *buf);
+int keyToByteRep(key k, unsigned char *buf);
+int curveParamsToByteRep(curveParams *cp, unsigned char *buf);
+int sigToByteRep(int magic,
+       int version,
+       int minVersion,
+       giant g0,
+       giant g1,
+       unsigned char *buf);
+
+int lengthOfByteRepGiant(giant g);
+int lengthOfByteRepKey(key k);
+int lengthOfByteRepCurveParams(curveParams *cp);
+int lengthOfByteRepSig(giant g0,
+       giant g1);
+
+int byteRepToInt(const unsigned char *buf);
+unsigned short byteRepToShort(const unsigned char *buf);
+giant byteRepToGiant(const unsigned char *buf,
+       unsigned bufLen,
+       unsigned *giantLen);
+key byteRepToKey(const unsigned char *buf,
+       unsigned bufLen,
+       int twist,
+       curveParams *cp,
+       unsigned *keyLen);      // returned
+curveParams *byteRepToCurveParams(const unsigned char *buf,
+       unsigned bufLen,
+       unsigned *cpLen);
+int byteRepToSig(const unsigned char *buf,
+       unsigned bufLen,
+       int codeVersion,
+       int *sigMagic,                          // RETURNED
+       int *sigVersion,                        // RETURNED
+       int *sigMinVersion,                     // RETURNED
+       giant *g0,                                      // alloc'd  & RETURNED
+       giant *g1);                                     // alloc'd  & RETURNED
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /*_CK_BYTEREP_H_*/