topic Re: Verifying Code Signing Tool (CST) Output on i.MX6SX in i.MX Processors

Verifying Code Signing Tool (CST) Output on i.MX6SX

shauntomaszewsk — Mon, 15 May 2017 15:15:41 GMT

Hello,

We are in the process of integrating an HSM with NXP's Code Signing Tool (CST). We replaced the libbackend.a with calls for our HSM.

We were able to get the CST to sign successfully using our HSM.

Is there a way to verify the output of the CST executable? We did not see one. Ideally we would be able to verify our image without having to load it on an i.MX6SX processor every time. We would like to automate the signing/verifying process and manually having to load it on the i.MX6SX processor would slow that down.

Re: Verifying Code Signing Tool (CST) Output on i.MX6SX

Yuri — Tue, 23 May 2017 06:18:46 GMT

Hello,

We do not have tools to test the CST outputs - the using i.MX6SX target for checking

is the best way.

Have a great day,
Yuri

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Re: Verifying Code Signing Tool (CST) Output on i.MX6SX

lwn — Mon, 28 Aug 2017 09:04:55 GMT

Hello,

u-boot/mkimage recently too gained such capabilities: Add support for signing with pkcs11 -> http://git.denx.de/?p=u-boot.git;a=commit;h=f1ca1fdebf1cde1c37c91b3d85f8b7af111112ea

What kind of interface/protocol did you use to connect to your HSM from CST? pkcs11?

Thanks!