XOREncryption/Objective-C/main.m

46 lines
1016 B
Objective-C

//
// main.m
// XOREncryption
//
// Created by Kyle Banks on 2013-10-06.
//
#import <Foundation/Foundation.h>
@interface XOREncryption : NSObject
+(NSString *) encryptDecrypt:(NSString *)input;
@end
@implementation XOREncryption
+(NSString *) encryptDecrypt:(NSString *)input {
unichar key[] = {'K', 'C', 'Q'}; //Can be any chars, and any size array
NSMutableString *output = [[NSMutableString alloc] init];
for(int i = 0; i < input.length; i++) {
unichar c = [input characterAtIndex:i];
c ^= key[i % sizeof(key)/sizeof(unichar)];
[output appendString:[NSString stringWithFormat:@"%C", c]];
}
return output;
}
@end
int main(int argc, const char * argv[])
{
@autoreleasepool {
NSString *encrypted = [XOREncryption encryptDecrypt:@"kylewbanks.com"];
NSLog(@"Encrypted:%@", encrypted);
NSString *decrypted = [XOREncryption encryptDecrypt:encrypted];
NSLog(@"Decrypted:%@", decrypted);
}
return 0;
}