Wouldn't that be an interesting business opportunity? While both Github and Bitbucket offer privat repositories both free and paid, non of them can be shared or viewed without additional accounts and management.

If one could host or upload repositories which are private but can be viewed read-only by the means of a password, or a passphrase shared via mail, that would be great.

Although I wonder if a recruiter would even go trough the hassle of entering a password you provided on your resume.