What encryption algorithm is suitable for access with multiple passwords?

Question

Encryption

There is storage. There are 2 users.
What encryption algorithm will allow two users to be given different access details with the ability to decrypt the storage, get the data, enter the data and encrypt it back?

Answer 1

Any symmetric (and asymmetric) algorithm.
Encrypt storage with a master key of sufficient strength, and then add a master key encrypted with different user keys to the storage in the service data.
This is a standard take.
PS If the algorithm is asymmetric, then this technology is called "deposit" (key escrow) and is widely used when it is necessary to provide access to encrypted data also to various supervisory / law enforcement agencies.

Answer 2

if the data is not shared, then you can create two TrueCrypt containers for each user