Make repo clone with all data removed, commit names, authors renamed

[ganju001]

I got into situation that git started to be slow and I need so help from community, I can not publish our repository as it is as belongs to a company.
So I would like to clean and make same repo in sense of commits, merges and branches.

I have some requirements:

• Each commit should get a random message, author and etc..
• Each commit should become and empty commit with no attached data
• Each merge commits should stay as merge commits.
• All branches and tags should be renamed
• Repo should not have any files or history that could compromise security of the company.

Is it possible to do it with git-filter-repo?