I have a TPM T, with a storage root key SRK. Under SRK I have created a 
migratable key K with authorization data AD. 

I now want to migrate K to a different TPM T' with a storage root key SRK'. So 
I go through the motions of authorizing the migration and creating a migration 
blob B against the public component of SRK'. I can use B in T' in order to load 
K into T'.

I used the public component of K to bind some data D to it, obtaining an 
encrypted blob E(D). What I would like to do now is to unbind E(D), obtaining 
the original data D, at T' using K after loading it from B into T'. What 
authorization data should I use to carry out the unbind operation? Is it AD? If 
so, is AD explicitly included in B? 


      

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