[Cryptography] A two key file/program

Peter Fairbrother peter at tsto.co.uk
Fri May 17 15:56:21 EDT 2019

On 17/05/2019 03:00, Allen Schaaf wrote:
> Hi folks,
> I'm looking for a program or file system to run on Windows 7/8.1/10 to 
> keep data protected that requires two separate keys used at the same 
> time to open the file. It needs to be like the missile launching system 
> that was created using two physical keys at the same time to prevent one 
> crazy person from starting a war.
> The goal for the credit union is to encrypt login information used by 
> the staff.
> Each of the staff has six or seven user names and passwords for various 
> local and remote systems. The manager/CEO and assistant manager need to 
> enable access to each account when either there is a potential problem 
> or when they are not available. One example of this need is that US law 
> requires each employee to take a minimum one week vacation so that any 
> fraudulent behavior will be interrupted and also that the transaction 
> they did can be audited without them overseeing the audit process.
> I recall that there is a system like this but I'm unable to find it. 
> Given that it is a very small credit union and that it functions in a 
> lower income market it would be best if it was free or low cost.
> I'm President of the BoD and the primary tech support person in my 
> retirement.

Give the staff a long, maybe 256-bit, password for each account. Give 
the manager and assistant manager each a different half of the password. 
Repeat for each account.

- Peter Fairbrother

More information about the cryptography mailing list