Greetings,

I’m Rafael Gameiro, and I’m currently doing my Thesis in Msc Computer Science course of FCT NOVA University of Lisbon.

As the subject suggests, I have come across a presentation Linaro did some years ago [1]. In my thesis, I have been trying to create an attestation ta, that generates an attestation proof of a set of components created by me. To ensure trustability over this attestation service, I thought I could use this SKS to possibly generate a keypair, and perform the sign operation that I need to generate the attestation proof.

I searched for this SKS on OP-TEE OS [2], OP-TEE Client [3], and OP-TEE Tests[4], but I did not found any TA that explicitly said it was the SKS that was referred in the said presentation. The only possible comparisons I found were the TEE_AsymmetricSignDigest etc functions, derived from GP internal API, and the TA PKCS#11.

My Question is, does this SKS still exists, and if yes, where could I find it.

If not, does one of the above mentioned libraries is a SKS "replacement"? If yes, which one?

Thank you for your time.

Best regards,

Rafael Gameiro

[1] https://pt.slideshare.net/linaroorg/hkg18402-build-secure-key-management-ser...

[2] https://github.com/OP-TEE/optee_os

[3] https://github.com/OP-TEE/optee_client

[4] https://github.com/OP-TEE/optee_test