1/* 2 * Copyright (c) 2007-2009 Apple Inc. All Rights Reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24/*! 25 @header SecRandom 26 The functions provided in SecRandom.h implement high-level accessors 27 to cryptographically secure random numbers. 28*/ 29 30#ifndef _SECURITY_SECRANDOM_H_ 31#define _SECURITY_SECRANDOM_H_ 32 33#include <Security/SecBase.h> 34#include <stdint.h> 35#include <sys/types.h> 36 37#if defined(__cplusplus) 38extern "C" { 39#endif 40 41/*! 42 @typedef SecRandomRef 43 @abstract Reference to a (psuedo) random number generator. 44*/ 45typedef const struct __SecRandom * SecRandomRef; 46 47/* This is a synonym for NULL, if you'd rather use a named constant. This 48 refers to a cryptographically secure random number generator. */ 49extern const SecRandomRef kSecRandomDefault 50 __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_2_0); 51 52/*! 53 @function SecRandomCopyBytes 54 @abstract Return count random bytes in *bytes, allocated by the caller. 55 @result Return 0 on success or -1 if something went wrong, check errno 56 to find out the real error. 57*/ 58int SecRandomCopyBytes(SecRandomRef rnd, size_t count, uint8_t *bytes) 59 __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_2_0); 60 61 62#if defined(__cplusplus) 63} 64#endif 65 66#endif /* !_SECURITY_SECRANDOM_H_ */ 67