For those having issue with keychain asking for "Local Items" every time after upgrading to Mavericks, and not being able to unlock the keychain lock (asks again for the same unknown password)

Don't even try to repair (it will not work) or Reset my Default Keychain (it will ask for the password). 

Fixes: Go to ~/Library/Keychain and move all files to the trash. Reboot your mac and keychain should give you a message of error, just click to create new keychain. 

https://discussions.apple.com/message/23496232#23496232