CODEWITHSUNDEEP
iosobjective-ckeychain
user7372676
user7372676

Reputation:

Retrieve data in keychain for particular service not working in ios

I'm storing username and password in keychain. Here's my code

To save and fetch

I'm trying to store multiple username and passwords using service

When login button clicked

[keychain setObject:@"facebookLogin" forKey:(id)kSecAttrService];
[keychain setObject:username forKey:(id)kSecAttrAccount];
[keychain setObject:password forKey:(id)kSecValueData];

[keychain setObject:@"appLogin" forKey:(id)kSecAttrService];
[keychain setObject:username forKey:(id)kSecAttrAccount];
[keychain setObject:password forKey:(id)kSecValueData];

When show button clicked

NSLog(@"%@", [keychain objectForKey:(id)kSecAttrAccount]);
NSLog(@"%@", [keychain objectForKey:(id)kSecValueData]);

How to fetch the username and password which is stored for facebook login and app login?

And I want to store cookie value.

[keychain setObject:@"cookieString" forKey:(id)kSecAttrService];
[keychain setObject:myCookie forKey:(id)kSecValueData];

Is this is a right way to store the values?

Any help appreciated...

Upvotes: 0

Views: 1314

Answers (2)

badhanganesh
badhanganesh

Reputation: 3465

This should work:

Saving an item to Keychain: 

KeychainItemWrapper *login = [[KeychainItemWrapper alloc] initWithIdentifier:@"login" accessGroup:nil];

[wrapper setObject:username1 forKey:(__bridge id)kSecAttrAccount];
[wrapper setObject:password1 forKey:(__bridge id)kSecValueData];
[wrapper setObject:kSecAttrAccessibleAlwaysThisDeviceOnly forKey:(__bridge id)kSecAttrAccessible];

KeychainItemWrapper *facebookLogin = [[KeychainItemWrapper alloc] initWithIdentifier:@"facebooklogin" accessGroup:nil];

[wrapper setObject:username2 forKey:(__bridge id)kSecAttrAccount];
[wrapper setObject:password2 forKey:(__bridge id)kSecValueData];
[wrapper setObject:kSecAttrAccessibleAlwaysThisDeviceOnly forKey:(__bridge id)kSecAttrAccessible];


Retrieving an item from Keychain: 

// Create respective KeychainItemWrapper objects with identifiers you want to retrieve from

KeychainItemWrapper *login = [[KeychainItemWrapper alloc] initWithIdentifier:@"login" accessGroup:nil];

NSData *passwordData1 = [login objectForKey:(__bridge id)kSecValueData];
NSString *passwordString1 = [[NSString alloc] initWithData:passwordData1 encoding:NSUTF8StringEncoding];
NSLog(@"%@", passwordString1);

KeychainItemWrapper *facebookLogin = [[KeychainItemWrapper alloc] initWithIdentifier:@"facebooklogin" accessGroup:nil];

NSData *passwordData2 = [facebookLogin objectForKey:(__bridge id)kSecValueData];
NSString *passwordString2 = [[NSString alloc] initWithData:passwordData2 encoding:NSUTF8StringEncoding];
NSLog(@"%@", passwordString2);


Use initWithIdentifier to store items for different categories as you like. You can choose to include or omit kSecAttrService as you have used in your question. initWithIdentifier is enough and good.


NOTE

Here, kSecAttrAccessible is really important, 'cause a keychain item has various levels of security of access to it. If your phone has touchId/passcode enabled, use this constant(kSecAttrAccessibleAlwaysThisDeviceOnly) to access keychain item from anywhere, i.e., without unlocking your device.

Upvotes: 1

Manfred Scheiner
Manfred Scheiner

Reputation: 399

Since iOS 10.3 beta 2 an app's keychain entries will be deleted when the app gets uninstalled. Confirmed in the Apple Developer Forums.

Upvotes: 0

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