Permalink
Find file
Fetching contributors…
Cannot retrieve contributors at this time
51 lines (44 sloc) 2.13 KB
//
// AESCrypt.m
// Gurpartap Singh
//
// Created by Gurpartap Singh on 06/05/12.
// Copyright (c) 2012 Gurpartap Singh
//
// MIT License
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#import "AESCrypt.h"
#import "NSData+Base64.h"
#import "NSString+Base64.h"
#import "NSData+CommonCrypto.h"
@implementation AESCrypt
+ (NSString *)encrypt:(NSString *)message password:(NSString *)password {
NSData *encryptedData = [[message dataUsingEncoding:NSUTF8StringEncoding] AES256EncryptedDataUsingKey:[[password dataUsingEncoding:NSUTF8StringEncoding] SHA256Hash] error:nil];
NSString *base64EncodedString = [NSString base64StringFromData:encryptedData length:[encryptedData length]];
return base64EncodedString;
}
+ (NSString *)decrypt:(NSString *)base64EncodedString password:(NSString *)password {
NSData *encryptedData = [NSData base64DataFromString:base64EncodedString];
NSData *decryptedData = [encryptedData decryptedAES256DataUsingKey:[[password dataUsingEncoding:NSUTF8StringEncoding] SHA256Hash] error:nil];
return [[NSString alloc] initWithData:decryptedData encoding:NSUTF8StringEncoding];
}
@end