OSX/libsecurity_cryptkit/lib/ckSHA1.h

   1 /* Copyright (c) 1998,2011,2014 Apple Inc.  All Rights Reserved.
   2  *
   3  * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT
   4  * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE
   5  * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE, INC. AND THE
   6  * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE,
   7  * INC.  ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL
   8  * EXPOSE YOU TO LIABILITY.
   9  ***************************************************************************
  10  *
  11  * ckSHA1.h - generic, portable SHA-1 hash object
  12  *
  13  * Revision History
  14  * ----------------
  15  * 05 Jan 1998 at Apple
  16  *      Created.
  17  */
  18
  19 #ifndef _CK_SHA1_H_
  20 #define _CK_SHA1_H_
  21
  22 #if     !defined(__MACH__)
  23 #include <feeTypes.h>
  24 #else
  25 #include <security_cryptkit/feeTypes.h>
  26 #endif
  27
  28 #ifdef __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 /*
  33  * Opaque sha1 object handle.
  34  */
  35 typedef void *sha1Obj;
  36
  37 /*
  38  * Alloc and init an empty sha1 object.
  39  */
  40 sha1Obj sha1Alloc(void);
  41
  42 /*
  43  * reinitialize an sha1 object for reuse.
  44  */
  45 void sha1Reinit(sha1Obj sha1);
  46
  47 /*
  48  * Free an sha1 object.
  49  */
  50 void sha1Free(sha1Obj sha1);
  51
  52 /*
  53  * Add some data to the sha1 object.
  54  */
  55 void sha1AddData(sha1Obj sha1,
  56         const unsigned char *data,
  57         unsigned dataLen);
  58
  59 /*
  60  * Obtain a pointer to completed message digest. This disables further calls
  61  * to sha1AddData(). This pointer is NOT malloc'd; the associated data
  62  * persists only as long as this object does.
  63  */
  64 unsigned char *sha1Digest(sha1Obj sha1);
  65
  66 /*
  67  * Obtain the length of the message digest.
  68  */
  69 unsigned sha1DigestLen(void);
  70
  71 #ifdef __cplusplus
  72 }
  73 #endif
  74
  75 #endif  /*_CK_SHA1_H_*/