Generate 2 part / split password for break-glass account

Am planning to configure break-glass / emergency accounts for Azure AD.

However, need some help in order to create / generate split passwords ( 2 ) for one emergency account which can further be sent to the custodians.

So, scenario is: There will be a break-glass account whose password should be split in 2 parts. Each part is sent to each custodian.

Now, is there any tool or script which can do this so that the person executing the script is also unaware of the split password.

Thanks.