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 HMAC{SHA1,MD5} 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 #define kHMACMD5DigestSize       16
  37
  38 /* XXX These should really be in SHA1.h */
  39 #define kSHA1DigestSize         20
  40 #define kSHA1BlockSize          64
  41
  42 /* This function create an HMACSHA1 digest of kHMACSHA1DigestSizestSize bytes
  43  * and outputs it to resultPtr.  See RFC 2104 for details.  */
  44 void
  45 hmacsha1 (const void *keyPtr, UInt32 keyLen,
  46                   const void *textPtr, UInt32 textLen,
  47                   void *resultPtr);
  48
  49 /*
  50  * Staged version.
  51  *
  52  * Opaque reference to an hmac session
  53  */
  54 struct hmacContext;
  55 typedef struct hmacContext *hmacContextRef;
  56
  57 hmacContextRef hmacAlloc();
  58 void hmacFree(
  59         hmacContextRef hmac);
  60 CSSM_RETURN hmacInit(
  61         hmacContextRef hmac,
  62         const void *keyPtr,
  63         UInt32 keyLen,
  64         CSSM_BOOL sha1Digest);          // true -> SHA1; false -> MD5
  65 CSSM_RETURN hmacUpdate(
  66         hmacContextRef hmac,
  67         const void *textPtr,
  68         UInt32 textLen);
  69 CSSM_RETURN hmacFinal(
  70         hmacContextRef hmac,
  71         void *resultPtr);               // caller mallocs, must be kSHA1DigestSize bytes
  72
  73 #ifdef  __cplusplus
  74 }
  75 #endif
  76
  77 #endif /* __HMACSHA1__ */