76 lines
2.6 KiB
Objective-C
76 lines
2.6 KiB
Objective-C
//==============================================================================
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// This file is part of Master Password.
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// Copyright (c) 2011-2017, Maarten Billemont.
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//
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// Master Password is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Master Password is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You can find a copy of the GNU General Public License in the
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// LICENSE file. Alternatively, see <http://www.gnu.org/licenses/>.
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//==============================================================================
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#import "MPSecrets.h"
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#import "base64.h"
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// printf <secret> | openssl enc -[ed] -aes-128-cbc -a -A -K <appSecret> -iv 0
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NSString *appSecret = @"";
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NSString *appSalt = @"";
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NSString *sentryDSN = @"";
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NSString *countlyKey = @"";
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NSString *countlySalt = @"";
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NSString *decrypt(NSString *secret) {
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if (!secret)
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return nil;
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const char *secretString = [secret cStringUsingEncoding:NSUTF8StringEncoding];
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size_t length = mpw_base64_decode_max( secretString );
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if (!length)
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return nil;
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size_t keyLength;
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const uint8_t *key = mpw_unhex( [appSecret cStringUsingEncoding:NSUTF8StringEncoding], &keyLength );
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if (!key)
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return nil;
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uint8_t *base64 = calloc( length, sizeof( uint8_t ) );
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length = mpw_base64_decode( base64, secretString );
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const void *plain = mpw_aes_decrypt( key, keyLength, base64, &length );
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mpw_free( &key, keyLength );
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@try {
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return [[NSString alloc] initWithBytes:plain length:length encoding:NSUTF8StringEncoding];
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}
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@finally {
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mpw_free( &plain, length );
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}
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}
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NSString *digest(NSString *value) {
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if (!value)
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return nil;
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size_t appSaltLength, valueLength;
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const void *appSaltString = [decrypt( appSalt ) cStringUsingEncoding:NSUTF8StringEncoding length:&appSaltLength];
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const void *valueString = [value cStringUsingEncoding:NSUTF8StringEncoding length:&valueLength];
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const uint8_t *digest = mpw_hash_hmac_sha256( appSaltString, appSaltLength, valueString, valueLength );
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if (!digest)
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return nil;
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@try {
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return [[NSString alloc] initWithBytes:mpw_hex( digest, 32 ) length:16 encoding:NSUTF8StringEncoding];
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}
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@finally {
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mpw_free( &digest, 32 );
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}
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}
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