HSM Enable

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HSM Enable

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yashkhatri0291
Contributor II

I have MPC5748G. I want to store cryptographic keys in HSM. 

1. Can I store 32 bytes key in it?

2. When I enable HSM through DCF client, the bit SSCM_UOPS_HSE does not reflects the same(HSE bit gives enabled/disabled status). What are the possible reasons for this?

3 Replies

632 Views
petervlna
NXP TechSupport
NXP TechSupport

Hello,

1. No, because C3 engine only supports 128-bit key size.

2. Incorrect DCF records or DCF record is placed incorrectly in memory.

Peter

632 Views
yashkhatri0291
Contributor II

What about using 2 Read/Write slots simultaneously in KIDX for storing the cryptographic key, can that be done? Would there be loss of information?

0 Kudos

632 Views
petervlna
NXP TechSupport
NXP TechSupport

No, you cannot use 2 consecutive indexes.

Peter