Hi, Gilad, On 04/23/2018 10:25 AM, Gilad Ben-Yossef wrote:
Enable CryptoCell support for hardware keys. Hardware keys are regular AES keys loaded into CryptoCell internal memory via firmware, often from secure boot ROM or hardware fuses at boot time. As such, they can be used for enc/dec purposes like any other key but cannot (read: extremely hard to) be extracted since since they are not available anywhere in RAM during runtime. The mechanism has some similarities to s390 secure keys although the keys are not wrapped or sealed, but simply loaded offline. The interface was therefore modeled based on the s390 secure keys support.
I'm interested in hardware keys, ecc508 supports them too. In your proposal you expect that the user will provide a specific key token that is meaningful only for the ccree driver. If another driver that supports "cbc(paes)" shows up, you will force the user to select a specific driver implementation and to know what kind of key token to provide. Shouldn't we have a common API that can address other drivers too? Best, ta
