>> I was looking into binding it, since it is only about 128 bytes. But I am >> worried this limits me to doing the encryption on the actual machine. I >> have written code that generates a public key and then binds it (although >> I have yet to get Tspi_Data_Unbind to work). Am I going in the wrong >> direction?
BTW, what issue are you running into when you use Unbind? Kent > If I understand correctly, you'd like to encrypt some data on a > non-TPM machine with a symmetric key, then wrap that symmetric key > with a TPM key and destroy the symmetric key. This would make the > encrypted data decryptable only through a 2 step process on the > machine with the TPM. Using TSS Bind is the right choice here. First > you'd need to decrypt the bound data blob containing your symmetric > key, then decrypt your data. > >> Is there any sample code anywhere that shows how to encrypt data using a >> public key that can only be decrypted by the TPM that generated the public >> key? > > I don't think we have trousers test case for that, other than those > that show how to use Bind [1]. > > Kent > > [1] > http://trousers.git.sourceforge.net/git/gitweb.cgi?p=trousers/testsuite;a=blob;f=tcg/highlevel/data/Tspi_Data_Unbind05.c;h=c289503ddbe795fa2d4cd790132fc90c6deaaabe;hb=HEAD > >> Thanks your for your time. >> >> -Robb >> >> >> >> ------------------------------------------------------------------------------ >> For Developers, A Lot Can Happen In A Second. >> Boundary is the first to Know...and Tell You. >> Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! >> http://p.sf.net/sfu/Boundary-d2dvs2 >> _______________________________________________ >> TrouSerS-users mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/trousers-users > > > > -- > IBM LTC Security -- IBM LTC Security ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ TrouSerS-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/trousers-users
