sharingd wants to use the "Local Items keychain
What is sharingd?
sharingd is sharing daemon that enables AirDrop, Handoff, Instant Hotspot, Shared Computers, and Remote Disc in the Finder.
 
How to solve asking for password problem?
I think the login password and the keychain are not the same. That's why you get those messages. You want your default keychain to be unlocked automatically when you log in. Synchronise your Keychain Access and account login passwords by doing this:

Open Keychain Access (you can get to it by choosing Utilities from the Go menu in the Finder).
From the Edit menu, choose Change Password for Keychain &quot;login.&quot;
Type the former password of the account that you are currently logged in to, then click OK.
If you entered the correct password, a new window appears; enter the original password again in the Current Password field.
In the New Password field, type the password that matches your current account password.
Re-enter the newer password in the Verify field, then click OK.