AM6421: RSA key 4096 bits

Koichiro Tashiro

Part Number: AM6421

Hi,

Does AM64x support RSA key 4096 bits?
It is not clear which key length is supported in TRM.

Thanks and regards,
Koichiro Tashiro

over 1 year ago

0 Ashwani Goel over 1 year ago

TI__Mastermind 27270 points

Hi Koichiro Tashiro,

Thanks for your query.

Can you please help me with which SDK (Linux or RTOS) version you are working on?

Best Regards

Ashwani

0 Koichiro Tashiro over 1 year ago in reply to Ashwani Goel

TI__Mastermind 22915 points

Hi Ashwani,

Does it depend on SDK version?
The customer does not have specific SDK in mind right now.
If RSA bit length is different in each SDK, please let me know all of them.

Thanks and regards,
Koichiro Tashiro

+1 Prashant Shivhare over 1 year ago in reply to Koichiro Tashiro

TI__Guru 69061 points

Hi Koichiro-san,

Koichiro Tashiro said:
Does AM64x support RSA key 4096 bits?

Yes, the AM64x support RSA-4096 keys. Please refer to the following which documents the RSA key length for SMPK or BMPK

https://software-dl.ti.com/tisci/esd/latest/6_topic_user_guides/key_writer.html?highlight=mpk#supported-fields

Regards,

Prashant

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AM6421: RSA key 4096 bits