OSX/libsecurity_cryptkit/lib/feeRandom.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  * FeeRandom.h - generic, portable random number generator object
  12  *
  13  * Revision History
  14  * ----------------
  15  * 8/25/98              ap
  16  *      Fixed previous check-in comment.
  17  * 8/24/98              ap
  18  *      Added tags around #endif comment.
  19  * 23 Aug 96 at NeXT
  20  *      Created.
  21  */
  22
  23 #ifndef _CK_FEERANDOM_H_
  24 #define _CK_FEERANDOM_H_
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 typedef void *feeRand;
  31
  32 feeRand feeRandAllocWithSeed(unsigned seed);
  33 feeRand feeRandAlloc(void);
  34
  35 void feeRandFree(feeRand frand);
  36
  37 unsigned feeRandNextNum(feeRand frand);
  38
  39 void feeRandBytes(feeRand frand,
  40         unsigned char *bytes,           /* must be alloc'd by caller */
  41         unsigned numBytes);
  42
  43 void feeRandAddEntropy(feeRand frand, unsigned entropy);
  44
  45 #ifdef __cplusplus
  46 }
  47 #endif
  48
  49 #endif  /* _CK_FEERANDOM_H_ */