d0ae954dbf
[ADDED] OS X: Master password input and changing.
[ADDED] OS X: Autocompletion by searching Core Data for previously
used sites.
[ADDED] OS X: Working password generation for sites.
[FIXED] Bad ciphering on little endian machines: Convert bytes to
network endian before using them as numbers.
[FIXED] Opening of Core Data store when iCloud is unavailable.
157 lines
5.3 KiB
Objective-C
157 lines
5.3 KiB
Objective-C
//
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// MPAppDelegate.m
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// MasterPassword
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//
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// Created by Maarten Billemont on 24/11/11.
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// Copyright (c) 2011 Lyndir. All rights reserved.
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//
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#import "MPConfig.h"
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#import "MPAppDelegate_Key.h"
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@implementation MPAppDelegate (Key)
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static NSDictionary *keyQuery() {
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static NSDictionary *MPKeyQuery = nil;
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if (!MPKeyQuery)
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MPKeyQuery = [PearlKeyChain createQueryForClass:kSecClassGenericPassword
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attributes:[NSDictionary dictionaryWithObject:@"Stored Master Password"
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forKey:(__bridge id)kSecAttrService]
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matches:nil];
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return MPKeyQuery;
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}
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static NSDictionary *keyHashQuery() {
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static NSDictionary *MPKeyHashQuery = nil;
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if (!MPKeyHashQuery)
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MPKeyHashQuery = [PearlKeyChain createQueryForClass:kSecClassGenericPassword
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attributes:[NSDictionary dictionaryWithObject:@"Master Password Verification"
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forKey:(__bridge id)kSecAttrService]
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matches:nil];
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return MPKeyHashQuery;
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}
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- (void)forgetKey {
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dbg(@"Deleting master key and hash from key chain.");
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[PearlKeyChain deleteItemForQuery:keyQuery()];
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[PearlKeyChain deleteItemForQuery:keyHashQuery()];
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[[NSNotificationCenter defaultCenter] postNotificationName:MPNotificationKeyForgotten object:self];
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#ifdef TESTFLIGHT
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[TestFlight passCheckpoint:MPTestFlightCheckpointMPForgotten];
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#endif
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}
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- (void)signOut {
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[self updateKey:nil];
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}
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- (void)loadStoredKey {
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if ([[MPConfig get].storeKey boolValue]) {
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// Key is stored in keychain. Load it.
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dbg(@"Loading key from key chain.");
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[self updateKey:[PearlKeyChain dataOfItemForQuery:keyQuery()]];
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dbg(@" -> Key %@.", self.key? @"found": @"NOT found");
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} else {
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// Key should not be stored in keychain. Delete it.
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dbg(@"Deleting key from key chain.");
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[PearlKeyChain deleteItemForQuery:keyQuery()];
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#ifdef TESTFLIGHT
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[TestFlight passCheckpoint:MPTestFlightCheckpointMPUnstored];
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#endif
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}
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}
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+ (MPAppDelegate *)get {
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#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
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return (MPAppDelegate *)[UIApplication sharedApplication].delegate;
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#elif defined (__MAC_OS_X_VERSION_MIN_REQUIRED)
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return (MPAppDelegate *)[NSApplication sharedApplication].delegate;
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#else
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#error Unsupported OS.
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#endif
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}
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- (BOOL)tryMasterPassword:(NSString *)tryPassword {
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NSData *keyHash = [PearlKeyChain dataOfItemForQuery:keyHashQuery()];
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dbg(@"Key hash %@.", keyHash? @"known": @"NOT known");
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if (![tryPassword length])
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return NO;
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NSData *tryKey = keyForPassword(tryPassword);
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NSData *tryKeyHash = keyHashForKey(tryKey);
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if (keyHash)
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// A key hash is known -> a key is set.
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// Make sure the user's entered key matches it.
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if (![keyHash isEqual:tryKeyHash]) {
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dbg(@"Key phrase hash mismatch. Expected: %@, answer: %@.", keyHash, tryKeyHash);
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#ifdef TESTFLIGHT
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[TestFlight passCheckpoint:MPTestFlightCheckpointMPMismatch];
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#endif
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return NO;
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}
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#ifdef TESTFLIGHT
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[TestFlight passCheckpoint:MPTestFlightCheckpointMPAsked];
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#endif
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[self updateKey:tryKey];
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return YES;
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}
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- (void)updateKey:(NSData *)key {
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self.key = key;
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if (key)
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[[NSNotificationCenter defaultCenter] postNotificationName:MPNotificationKeySet object:self];
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else
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[[NSNotificationCenter defaultCenter] postNotificationName:MPNotificationKeyUnset object:self];
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if (key) {
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self.keyHash = keyHashForKey(key);
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self.keyHashHex = [self.keyHash encodeHex];
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dbg(@"Updating key hash to: %@.", self.keyHashHex);
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[PearlKeyChain addOrUpdateItemForQuery:keyHashQuery()
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withAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
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self.keyHash, (__bridge id)kSecValueData,
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#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
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kSecAttrAccessibleWhenUnlocked, (__bridge id)kSecAttrAccessible,
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#endif
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nil]];
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if ([[MPConfig get].storeKey boolValue]) {
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dbg(@"Storing key in key chain.");
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[PearlKeyChain addOrUpdateItemForQuery:keyQuery()
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withAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
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key, (__bridge id)kSecValueData,
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#ifdef __IPHONE_OS_VERSION_MIN_REQUIRED
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kSecAttrAccessibleWhenUnlocked, (__bridge id)kSecAttrAccessible,
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#endif
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nil]];
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}
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#ifdef TESTFLIGHT
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[TestFlight passCheckpoint:[NSString stringWithFormat:MPTestFlightCheckpointSetKeyphraseLength, key.length]];
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#endif
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}
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}
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- (NSData *)keyWithLength:(NSUInteger)keyLength {
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return [self.key subdataWithRange:NSMakeRange(0, MIN(keyLength, self.key.length))];
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}
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@end
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