[Cryptography] Is DAA (direct anonymous attestion) being used?

[Radia Perlman]

The TPM spec includes the DAA algorithm.  In theory, DAA might be used to
assure a verifier what software is being run, I guess.  However, all the
deployed uses of TPM that I know about (bitlocker, emulating a smart card
without letting the potentially malicious software on the PC see the
private key), do not use DAA.

Are there other uses of TPM?  And do any of them use DAA?

Thanks,

Radia
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