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28 lines
796 B
Objective-C
28 lines
796 B
Objective-C
//
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// NSData+hexString.m
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// TextSecureKit
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//
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// Created by Frederic Jacobs on 28/10/14.
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// Copyright (c) 2014 Open Whisper Systems. All rights reserved.
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//
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#import "NSData+hexString.h"
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@implementation NSData (hexString)
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-(NSString *)hexadecimalString {
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/* Returns hexadecimal string of NSData. Empty string if data is empty. */
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const unsigned char *dataBuffer = (const unsigned char *)[self bytes];
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if (!dataBuffer)
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return [NSString string];
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NSUInteger dataLength = [self length];
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NSMutableString *hexString = [NSMutableString stringWithCapacity:(dataLength * 2)];
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for (NSUInteger i = 0; i < dataLength; ++i) {
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[hexString appendFormat:@"%02x", dataBuffer[i]];
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}
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return [NSString stringWithString:hexString];
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}
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@end
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