KEYS: asym_tpm: Implement the decrypt operation [ver #2]
This patch implements the pkey_decrypt operation using the private key blob. The blob is first loaded into the TPM via tpm_loadkey2. Once the handle is obtained, tpm_unbind operation is used to decrypt the data on the TPM and the result is returned. The key loaded by tpm_loadkey2 is then evicted via tpm_flushspecific operation. This patch assumes that the SRK authorization is a well known 20-byte of zeros and the same holds for the key authorization of the provided key. Signed-off-by:Denis Kenzior <denkenz@gmail.com> Signed-off-by:
David Howells <dhowells@redhat.com> Tested-by:
Marcel Holtmann <marcel@holtmann.org> Reviewed-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
James Morris <james.morris@microsoft.com>
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