Linux cryptodev CAAM Interface - Asymmetric Cryptography

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Linux cryptodev CAAM Interface - Asymmetric Cryptography

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matthias_staube
Contributor II

Hello,

I found out through the Linux documentation that CAAM is exposed to the Linux OS via the cryptodev interface. I was able to run the openssl command line example and reproduce the speed improvement for AES-CBC.

From the documentation I gather that symmetric cryptography (AES, DES), as well as various hash algorithms are supported. However, it appears that asymmetric cryptography is not supported through the cryptodev interface, although it is supported by CAAM (correct me if I'm wrong). This raises the following questions:

  • Is there a specific reason for not supporting asymmetric cryptography operations (such as ECDSA signature verification) through the cryptodev interface?
  •  Is it possible to enable support for accelerated asymmetric operations from within the Linux OS?

Thank you in advance for your insights.

Best Regards,

Matthias

SoC: i.MX 8M Quad, 4.14.98_2.0.0_ga

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Yuri
NXP TechSupport
NXP TechSupport

Hello,

  I've sent some comments directly.

 

Have a great day,

Yuri.

 

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1 Reply
237 Views
Yuri
NXP TechSupport
NXP TechSupport

Hello,

  I've sent some comments directly.

 

Have a great day,

Yuri.

 

-------------------------------------------------------------------------------

Note:

- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored

 

Please open a new thread and refer to the closed one, if you have a related question at a later point in time.

View solution in original post