44 lines
1.4 KiB
Objective-C
44 lines
1.4 KiB
Objective-C
/*
|
|
Password Encryptor
|
|
|
|
Copyright 2013 Thincast Technologies GmbH, Author: Dorian Johnson
|
|
|
|
This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
|
|
If a copy of the MPL was not distributed with this file, You can obtain one at
|
|
http://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
/* Encrypts data using AES 128 with a 256 bit key derived using PBKDF2-HMAC-SHA1 */
|
|
|
|
#import <Foundation/Foundation.h>
|
|
|
|
// Encryption block cipher config
|
|
#define TSXEncryptorBlockCipherAlgo kCCAlgorithmAES128
|
|
#define TSXEncryptorBlockCipherKeySize kCCKeySizeAES256
|
|
#define TSXEncryptorBlockCipherOptions kCCOptionPKCS7Padding
|
|
#define TSXEncryptorBlockCipherBlockSize 16
|
|
|
|
// Key generation: If any of these are changed, existing password stores will no longer work
|
|
#define TSXEncryptorPBKDF2Rounds 100
|
|
#define TSXEncryptorPBKDF2Salt "9D¶3L}S¿lA[e€3C«"
|
|
#define TSXEncryptorPBKDF2SaltLen TSXEncryptorBlockCipherOptions
|
|
#define TSXEncryptorPBKDF2KeySize TSXEncryptorBlockCipherKeySize
|
|
|
|
@interface Encryptor : NSObject
|
|
{
|
|
@private
|
|
NSData *_encryption_key;
|
|
NSString *_plaintext_password;
|
|
}
|
|
|
|
@property(readonly) NSString *plaintextPassword;
|
|
|
|
- (id)initWithPassword:(NSString *)plaintext_password;
|
|
|
|
- (NSData *)encryptData:(NSData *)plaintext_data;
|
|
- (NSData *)decryptData:(NSData *)encrypted_data;
|
|
- (NSData *)encryptString:(NSString *)plaintext_string;
|
|
- (NSString *)decryptString:(NSData *)encrypted_string;
|
|
|
|
@end
|