session-ios/Signal/src/textsecure/Security/SecurityUtils.m

24 lines
649 B
Objective-C

//
// SecurityUtils.m
// TextSecureKit
//
// Created by Frederic Jacobs on 28/10/14.
// Copyright (c) 2014 Open Whisper Systems. All rights reserved.
//
#import "SecurityUtils.h"
@implementation SecurityUtils
+ (NSData*)generateRandomBytes:(int)numberBytes {
NSMutableData* randomBytes = [NSMutableData dataWithLength:(NSUInteger)numberBytes];
int err = 0;
err = SecRandomCopyBytes(kSecRandomDefault,(size_t)numberBytes,[randomBytes mutableBytes]);
if(err != noErr) {
@throw [NSException exceptionWithName:@"random problem" reason:@"problem generating the random " userInfo:nil];
}
return randomBytes;
}
@end