Avoid repeated prompt for username and password to allow keychain access on mac

Quite often Mac asks user to give permission for certain operations so the application is can access keychain items. Sometimes even if user inputs the right user name and password, user is still not able to finish the operation. The following steps can be used to avoid this

For client certificate keychain item:
1. Identify which keychain item is used by the operation,
2. open keychain app and select and right click the item, select Get Info menu item
3. open trust section, change "Use System Default" to "Always Trust"
4. save the change



For password keychain item
1. Identify which keychain item is used by the operation,
2. open keychain app and select and right click the item, select Access Control tab
3. select "allow all applications to access the item"
4. save the change