ios - iOS 中的钥匙串(keychain)访问 : "Keychain failed to store the value with code: -50"

Question

我在调用 SecItemAdd 时没有找到有关此类错误代码的信息，可能是什么原因造成的？

提前致谢

编辑:这是我得到错误的函数:

+ (BOOL)storeWithKey:(NSString *)keyStr withValueStr:(NSString *)valueStr
{
   if ((keyStr != nil) && (![keyStr isEqualToString:@""]) &&
       (valueStr != nil) && (![valueStr isEqualToString:@""])) {

       NSData *valueData = [valueStr dataUsingEncoding:NSUTF8StringEncoding];
       NSString *service = [[NSBundle mainBundle] bundleIdentifier];

       NSDictionary *secItem = @{(__bridge id)kSecClass : (__bridge id)kSecClassInternetPassword,
                              (__bridge id)kSecAttrService : service,
                              (__bridge id)kSecAttrAccount : keyStr,
                              (__bridge id)kSecValueData : valueData};

       CFTypeRef result = NULL;

       // Store value and get the result code
       OSStatus status = SecItemAdd((__bridge CFDictionaryRef)secItem, &result);

       NSLog(@"'writeToKeychain'. %@", [self getErrorMessage:status]);

       return [self checkIfInKeychain:status];
   }
   else {
       return NO;
   }
}

Answer 1

-50表示 One or more parameters passed to a function were not valid .你错误的参数组合。

如果您使用 kSecAttrService和 kSecAttrAccount , kSecClass应该是 kSecClassGenericPassword .

NSDictionary *secItem = @{(__bridge id)kSecClass : (__bridge id)kSecClassGenericPassword,
                          (__bridge id)kSecAttrService : service,
                          (__bridge id)kSecAttrAccount : keyStr,
                          (__bridge id)kSecValueData : valueData};

如果您使用 kSecClassInternetPassword如 kSecClass , 你应该使用 kSecAttrServer和 kSecAttrPort (如果需要)改为 kSecAttrService .

NSDictionary *secItem = @{(__bridge id)kSecClass : (__bridge id)kSecClassInternetPassword,
                          (__bridge id)kSecAttrServer : @"example.com",
                          (__bridge id)kSecAttrPort : @(80), // Optional
                          (__bridge id)kSecAttrAccount : keyStr,
                          (__bridge id)kSecValueData : valueData};