使用KeychainItemWrapper iPhone SDK时收到SIGABRT
我正在编写一个使用类“KeychainItemWrapper”的应用程序，以安全的方式存储登录凭据。这是管理Keychain对象的代码：
- (IBAction)saveFields {
wrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"username" accessGroup:nil];
[wrapper setObject:[self.password text] forKey:(id)kSecAttrAccount];
[wrapper release];
wrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"password" accessGroup:nil];
[wrapper setObject:[self.password text] forKey:(id)kSecAttrAccount];
[wrapper release];
[self dismissModalViewControllerAnimated:YES];
}
- (BOOL)isUserLogged {
wrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"username" accessGroup:nil];
if ( [[wrapper objectForKey:(id)kSecAttrAccount] isEqualToString:@""] ) {
return NO;
} else {
username = [NSString stringWithString:[wrapper objectForKey:(id)kSecAttrAccount]];
[wrapper release];
}
wrapper = [[KeychainItemWrapper alloc] initWithIdentifier:@"password" accessGroup:nil];
if ( [[wrapper objectForKey:(id)kSecAttrAccount] isEqualToString:@""] ) {
return NO;
} else {
password = [NSString stringWithString:[wrapper objectForKey:(id)kSecValueData]];
[wrapper release];
}
return YES;
}
// KeychainItemWrapper.m
// - (void)writeToKeychain;
result = SecItemAdd( (CFDictionaryRef)[self dictionaryToSecItemFormat:keychainItemData], NULL );
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末钉蹈泰唬