AppleCSP/PBKDF2/HMACSHA1.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 /*
  20         File:           HMACSHA1.h
  21         Contains:       Apple Data Security Services HMACSHA1 function declaration.
  22         Copyright:      (C) 1999 by Apple Computer, Inc., all rights reserved
  23         Written by:     Michael Brouwer <mb@apple.com>
  24 */
  25 #ifndef __HMACSHA1__
  26 #define __HMACSHA1__
  27
  28 #include <CoreServices/../Frameworks/CarbonCore.framework/Headers/MacTypes.h>
  29 #include <Security/cssmtype.h>
  30
  31 #ifdef  __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 #define kHMACSHA1DigestSize  20
  36
  37 /* XXX These should really be in SHA1.h */
  38 #define kSHA1DigestSize         20
  39 #define kSHA1BlockSize          64
  40
  41 /* This function create an HMACSHA1 digest of kHMACSHA1DigestSize and outputs
  42    it to resultPtr.  See RFC 2104 for details.  */
  43 void
  44 hmacsha1 (const void *keyPtr, UInt32 keyLen,
  45                   const void *textPtr, UInt32 textLen,
  46                   void *resultPtr);
  47
  48 /*
  49  * Staged version.
  50  *
  51  * Opaque reference to an hmacsha1 session
  52  */
  53 struct hmacContext;
  54 typedef struct hmacContext *hmacContextRef;
  55
  56 hmacContextRef hmacAlloc();
  57 void hmacFree(
  58         hmacContextRef hmac);
  59 CSSM_RETURN hmacInit(
  60         hmacContextRef hmac,
  61         const void *keyPtr,
  62         UInt32 keyLen);
  63 CSSM_RETURN hmacUpdate(
  64         hmacContextRef hmac,
  65         const void *textPtr,
  66         UInt32 textLen);
  67 CSSM_RETURN hmacFinal(
  68         hmacContextRef hmac,
  69         void *resultPtr);               // caller mallocs, must be kSHA1DigestSize bytes
  70
  71 #ifdef  __cplusplus
  72 }
  73 #endif
  74
  75 #endif /* __HMACSHA1__ */