TRNG support in CAAM

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TRNG support in CAAM

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neel_desai
Contributor I

Hi,

We have referred i.MX8MDual Processors datasheet.

Link: https://www.nxp.com/docs/en/data-sheet/IMX8MDQLQIEC.pdf 

In this datasheet,  Table No 3:

CAAM Section: CAAM is a cryptographic accelerator and assurance module. CAAM implements several encryptions and hashing functions, a run-time integrity checker, entropy source generator, and a Pseudo-Random Number Generator (PRNG). The PRNG is certifiable by the Cryptographic Algorithm Validation Program (CAVP) of the National Institute of Standards and Technology (NIST). CAAM also implements a Secure Memory mechanism. In i.MX 8M Dual / 8M QuadLite / 8M Quad processors, the secure memory provided is 32 KB

We need TRNG support in i.MX8MDual Processor. 

So, here the question is CAAM uses the TRNG for generating the random number? 

Please respond as soon as possible.

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Neel

>question is CAAM uses the TRNG for generating the random number?

yes. One also look at

https://community.nxp.com/message/1147777?commentID=1147777#comment-1147777 

caamrng.c\caam\crypto\drivers - linux-imx - i.MX Linux kernel 

Best regards
igor
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neel_desai
Contributor I

Hi igorpadykov,

Thanks for the quick reply. 

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