KeychainCircle/NSData+SecRandom.m

   1 //
   2 //  NSData+SecRandom.m
   3 //  Security
   4 //
   5 //  Created by Mitch Adler on 4/15/16.
   6 //
   7 //
   8
   9 #import <Foundation/Foundation.h>
  10 #import <NSData+SecRandom.h>
  11
  12 #include <Security/SecRandom.h>
  13
  14 @implementation NSMutableData (SecRandom)
  15
  16 + (instancetype) dataWithRandomBytes: (int) length {
  17
  18     NSMutableData* result = [NSMutableData dataWithLength: length];
  19
  20     if (0 != SecRandomCopyBytes(kSecRandomDefault, result.length, result.mutableBytes))
  21         return nil;
  22
  23     return result;
  24 }
  25
  26 @end