one-time address

I found in Project Stella Phase 4 Report (A CBDC research project launched by European Central Bank and Bank of Japan) that Diem uses one-time address mechanism to protect data privacy.

How does this implement? In Diem there is a way to rotate the authentication key of an account. Is this actually the case?

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This report is probably referring to “subaddresses”, which are described in more detail in DIP5.

It helps! Thank you!